UTD1025CL_1025DL_1050CL_1050DL_ENG.pdf

Instrukcja obsługi oscyloskopu ręcznego UNI-T UTD1025CL 1025DL 1050CL 1050DL ENG

Marka: UNI-T Model: UTD1025CL 1025DL 1050CL 1050DL Format: pdf Język: angielski


P reface
Dear users:
Hello! Thanks for you choosing the brand new UNI-T device. In order to use the instrument correctly,
please read the manual thoroughly and especially the Safety Notes part before using the device.
If you have read through the manul, you are recommended to keep the menu properly with the instrument
together or at the place you can read anytime in order to read it in the process of future use.

UTD1000L User Manual

C ontents
Item

Page

Chapter1 Safety Information............................................................... 1
Safety Terms and Symbols................................................... 1
General Safety Overview.................................................... .. 2
Chapter2 UTD1000L Series Oscilloscope Overview ........................ 4
UTD1000L Series Oscilloscope Introduction ..................... 4
UTD1000L Series Oscilloscope Accessories ...................... 5
UTD1000L Series Oscilloscope Key Features ....................... 5
Chapter3 Connections to the Oscilloscope....................................... 6
General Check................................................................... 6
Checking for any damage due to the transit.......................... 6
Checking the Accessories................................................. 6
Checking the Whole Oscilloscope..................................... 7
Connection Interfaces........................................................ 7
Compensation Output Connection...................................... 8
Front Panel and Keypad..................................................... 8
Chapter 4 Using Basic Oscilloscope Functions................................... 12
About the Chapter................................................................. 12
Powering on the Oscilloscope............................................. 12

UTD1000L User Manual

Item

Page
Describing the Display......................................................
Resetting the Oscilloscope..............................................
Using Functional Menus..................................................
Hiding Menus ........................................................................
Making Connections for Probe Compensation .... ............... ...
Compensating the Probe..............................................................

12
14
14
15
15
12

Setting Vertical & Horizontal Systems and Trigger Level Manually..... 17

Vertical System ....................................................................... 17
Horizontal System................................................................... 18
Autoset for Waveform Display................................................. 19
Full Autoset for Input Signal................................................... 20
Run/Stop Data Acquisition...................................................... 21
Setting Frequency Counter.................................................... 22
Adjusting Screen Intensity..................................................... 22
Saving Bitmap..................................................... ................. 23
Using Online Help................................................................ 23
Setting Single Trigger .......................................................... 24

UTD1000L User Manual

Item

Page
Viewing Oscilloscope Status ................................................ 24

Checking Oscilloscope System Information..........................
Making Auto Measurements................................................
Measuring All parameters...................................................
Using AVG Mode for Smoothing Waveforms ........................
Using Peak Detect Mode for Pulse Peak Display...................
Observing Waveforms with use of Persistence ..................
Selecting AC Coupling........................................................
Inverting the Waveform Display.........................................
Autoset for Signals with DC Offset.......................................
Chapter 5 Using the Multimeter ....................................................
About the Chapter................................ ...............................
Connections to the Multimeter............................................
Display Indicators................................................................
Making Multimeter Measurements......................................
Measuring Resistance.........................................................
Testing Diodes....................................................................

26
26
26
29
29
30
30
31
32
35
35
35
35
36
36
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UTD1000L User Manual

Item

Page

Testing for Continuity......................................................
Measuring Capacitance..................................................
Measuring DC Voltage ..........................................................
Measuring AC Voltage .........................................................
Measuring DC Current with UTD1000CL .............................
Measuring AC Current with UTD1000CL .............................
Measuring DC Current with UTD1000DL .............................
Measuring AC Current with UTD1000DL ................................
Data Hold .............................................................................
Making Relative Measurement ..............................................
Selecting Auto / Manual Ranging..........................................
Chapter 6 Using the Oscilloscope in Details ......................................
About the Chapter............................ ....................................
Setting Vertical System .......................................................
UTD1000CL Channel Setup................................................
UTD1000DL Channel Setup................................................
Setting Probe Factor...........................................................

37
38
38
39
39
41
43
47
51
51
52
53
53
53
53
56
59

UTD1000L User Manual

Item

Page
Setting Horizontal System....................................................
Changing Timebase ..............................................................
Moving Waveforms Horizontally.............................................
Zooming in / out Waveforms ................................................
Adjusting Trigger Hold - Off...................................................
Setting Trigger System ........................................................
Common Setting ..................................................................
Edge Trigger........................................................................
Pulse Width Trigger........... ...................................................
Video Trigger.......................................................................
Slope Trigger.......................................................................
Setting Acquisition Mode ....................................................
Setting the Display..............................................................
Setting Auto Measurements ...............................................
Recording and Storage ......................................................

59
59
59
60
61
62
64
65
66
67
68
71
72
74
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UTD1000L User Manual

Item

Page

Recording ............................................................................. 80
Storage................................................................................ 83
Recalling .............................................................................. 84
Making Cursor Measurements .............................................. 86
Interface Setup .................................................................... 88
Utility Setup ......................................................................... 89
Executing Mathematic Functions ......................................... 91
Autoset................................................................................ 96
Chapter 7 Troubleshooting ............................................................... 97
The Oscilloscope cannot power on ........................................ 97
The Oscilloscope turns off just a few seconds later after
powered on ........................................................................... 97
Measuring voltage amplitude is 10 times larger or smaller than
exactvalue ............................................................................ 97
No waveform displays after acquiring signals.............................. 97

UTD1000L User Manual

Item

Page

The waveform does not display steadily................................ 97
There is no display after pressing down RUN/STOP button...... 98
The display slows down after having applied AVG mode for a while.98
The waveform display has a stair-stepping shape .................
98
Chapter 8 Service and Suppor.......................................................... 99
Updating Program ............................................................... 99
Preparations before Update ................................................. 99
Update Conditions ............................................................... 99
Program Update .................................................................. 99
Chapter 9 Appendixes ...................................................................... 102
AppendixA : Technical Specifications ................................. 102
Appendix B : Maintenance ..................................................

11 1

UTD1000L User Manual

Chapter 1 Safety Information
Safety Terms and Symbols
Terms in the manual
Following terms may appear in this manual:
Warning: a Warning specifies conditions and
actions that may pose hazards to the user.
Caution: a Caution identifies conditions and
actions that may cause damage to the product
or other properties .
Terms on the product
Following terms may show on the product:
DANGER indicates any injury hazard
immediately accessible as you read the marking.
WARNING indicates any injury hazard not
immediately accessible as you read the
marking .
CAUTION indicates any damage may happen to
the product or other properties

Symbols on the product
Following symbols may show on the product:
Symbols on the product
The following symbols might be on the product:

High Voltage

Refer to the manual

Measuring Ground
Terminal

1

UTD1000L User Manual

G eneral Safety Overview
The oscilloscope is strictly designed and
manufactured as per safety/compliances: GB4793
safety requirements for electronic measuring
instruments, IEC61010-1, Overvoltage CATIII
600 V and Pollution Degree II.
Please review following safety precautions to avoid
personal injury or any damage to this product or
any products connected to it. Operate the product
as specified to prevent any potential hazards. Only
the qualified personnel can perform the servicing
procedures.
Warning: To avoid electric shock or fire, use
only the power adaptor specified for the
Oscilloscope and certified for the power grid by
the country of use.
Warning: If the Oscilloscope terminals are input
with voltages higher than 42V (30 Vrms) , to
avoid personal electric shock :
2

Use only the insulated voltage probe, test leads
and power adaptor supplied or specified by UNIT for this Oscilloscope Series.
? Please check multimeter test leads, oscilloscope
probe and other accessories for any
mechanical damage . Please make the
replacement if any damage is found.
? Remove all unused test leads, probe and other
accessories.
? Insert the power adaptor first into AC socket
before connecting it to the Oscilloscope .
? Do not input voltages higher than 300V into
scope terminals under CAT II measuring
environment; working voltage applied into
multimeter terminals must not exceed 600 V
under CAT III measuring environment.
? Do not apply working voltage higher than rated
values on the Oscilloscope
?

U TD1000L User Manual

Use only the accessories supplied for the
Oscilloscope , do not use them if any damages
are found.
? Do not plug any metal object into the connectors
? Use the Oscilloscope as specified.
? Rated voltage value mentioned in "Warning"
is the "working voltage" limit for the power
adaptor . It represents Vrms ( 50-60Hz) when
applying AC sinewave .
Only qualified staff can perform the servicing.
Check all terminals ratings: To avoid fire or
electric hazard, please observe all ratings and
symbols on the Oscilloscope. Read through the
manual for details before making connections to
the Oscilloscope
Do not operate with suspected failure: Please
have it checked by qualified servicing staff if you
doubt the product does not work nor mally.
?

Do not operate in damp environment.
Do not operate in explosive environment
Keep the product surface clean and dry

3

U TD1000L User Manual

Chapter 2 UTD1000L Series
Oscilloscope Overview
UTD1000L Series Oscilloscope
Introduction
UTD1000L Handheld Digital Storage
Oscilloscope ( Hereinafter referred to as "The
Oscilloscope") combines digital scope and
multimeter functions just into one tool. The easeof-use feature, excellent technical indicators and
multi-functions offered the Oscilloscope can get
your work done much faster.
The series offers four models for your option:
Type
UTD1025CL
UTD1050CL
UTD1025DL
UTD1050DL
4

Bandwidth

Sampling
velocity

Channel
count

25MHz
50MHz
25MHz
50MHz

200MS/s
200MS/s
250MS/s
250MS/s

Single channel
Single channel
Dual Channel
Dual Channel

UTD1000L Series Oscilloscopes offer users a
simple and clear front panel that helps to perform
primary operations , a design you often get used
to and can save you a great amount of time to
learn about the Oscilloscope. In order to speed
up calibrati ons and measurements, pressing AUTO
button can make the oscilloscope display proper
waveforms and settings directly. Meanwhile the
Oscilloscope offers SHIFT button to combine with
other buttons to further operate the menus
much easier. Beside ease of use, this series
outstands itself with superb performance and
powerful functions, such as remarkable trigger and
analysis ability, making it easy to capture and
analyze the waveforms ; high - definition Display
and math function, ensuring a very clear and
fast view on waveforms and finding out the signal
problem .

UTD1000L User Manual

UTD1000L Series Oscilloscope Accessories
Unpack the carton and you will see following
accessories should be included:
No.
1
2
3
4

5

6
7

Instruction
UNI-T oscilloscope
Power Adaptor, 1 pc
UTD1000CL Standard Probe,1 pc ;
UTD1000DL Standard Probe, 2pcs
Multimeter Test Leads, 2pcs
(one red, one black)
UTD1000CL standard UT-M07(10A
current divider module),1pcs;
UTD1000DL standard UT-M04 (4A
current divider module),1pc;UT-M10
(mA current module),1pc.

Oscilloscope probe adjusting tool, 1pc
USB wire , 1 pc
Operating Manual , 1 pc
8
CD (for communication software
9 between PC and the Oscilloscope), 1pc
10 carrying bag, 1pc

Standard
configuration
?
?
?

?

?

?
?
?
?

UTD1000L Series Oscilloscope Key
Features
Scope
? Totally Auto Scale ; Vertical Scale and
Timebase automatically adjusted with the signal
and without any manual interference ;
? Unique and powerful Auto Setup, quick and
accurate to set up for signals with any DC
component ;
? Wider voltage measuring range ; Coupled with
10×probe with attenuation up to 200V/div ;
? Isolated USB for much safer communication ;
? Color , White & black display for your option,
perfect for use outdoors with strong sunshine.
? Intelligent local or network software update
? Unique waveform record, storage and recall
functions
? High-resolution and high-contrast color LCD

?

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U TD1000L User Manual

8 hours of continuous battery operation for
UTD1000CL and 6 hours for UTD1000DL
? UTD1000CL: 19 types of auto measurements
? UTD1000DL:22 types of auto measurements
? Simple Printscreen function
? Multilingual help information
Multimeter
? 3999 display count
? Voltage, current, resistance, diode,
capacitance, continuity measurements
offered
? Measure current up to 10A ( UTD1000DL 4A
max.)
? Extremely low internal resistance designed
for current measurement , ensuring better
measuring accuracy.
? Independent multimeter and scope functions
in one tool
?

6

Chapter 3 Oscilloscope
Connection
General Check
It is recommended that you should proceed
following inspections when you get a new UT1000L
series oscilloscope.
Checking for any damage due to the transit
Contact UNI-T dealership or local UNI-T office
immediately if the packing carton or foamed
plastic cushion is seriously damaged.
Checking the Accessories
The accessories supplied for the Oscilloscope
are listed in the section "UTD1000L Series
Oscilloscope Accessories" hereinbefore. Please
refer to the section and check if any accessory is
missing.
Please contact UNI-T dealership or local UNI-T
office if there is any damage or missing item.

U TD1000L User Manual

Checking the Whole Oscilloscope
If the Oscilloscope is found damaged
externally or it does not work normally or pass
any performance test, contact our UNI-T
dealership or local UNI-T office
If the product is damaged due to the transit ,
keep the package and inform the shipping
agency and UNI - T dealership, UNI-T will
arrange the maintenance or replacement for you.
Oscilloscope Connections

Connection Interfaces
See Figure 3-1 for the Oscilloscope
connection interfaces

5

6

Figure 3-1 Oscilloscope Connection Interfaces

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U TD1000L User Manual
Description:
1 . Input terminals for scope channels .
2 . USB Connection port
3 . The port to connect power adaptor for AC power
supply and battery charge.
4 . Output terminal for probe compensation
5 . UTD1000CL multimeter input terminals .
6. UTD1000DL multimeter input terminals .

Front Panel and Keypad
Learn about the Oscilloscope front panel and
buttons shown in Figure 3-3:

Compensation Output Connection
Connect to the output ( 1kHz / 3V ) terminal as
shown below for the Oscilloscope probe
compensation .

Figure 3-3 UTD1000L Series Front Panel

8

Picture 3-2 Compensation Signal Output
Connection of the Apparatus

UTD1000L User Manual

: To power on / off the Oscilloscope
F1~F4 : To set up the submenus
: To toggle between Scope (DSO) and
multimeter (DMM) modes .
: Press this button to access ACQUIRE
(sample mode)menu if under DSO mode ;
press SHIFT first and then this button to
access intensity, with help of right and left
arrow buttons, you can change screen
brightness. If under DMM mode, pressing
this button can access voltage
measurement menu .
: Press this button to access DISPLAY
(Display mode) menu if under DSO mode ;
or press SHIFT first and then this button to
access CONFIGURE ( interface
configuration) menu; pressing this button
under DMM mode t o access current
measurement menu .

: Press this button under DSO mode to
access MEASURE ( auto measurement )
menu ; or press SHIFT first and then the
button to access COURSOR( cursor
measurement)menu ; if under DMM
mode , press the button to access
resistance measurement menu and
measure resistance / diode/ continuity/
capacitance.
: In DSO mode , press it to access
CHANNEL menu for UTD1000CL ;
repeatedly press to toggle between two
channel menus for UTD1000DL
: In DSO mode, press the button to access
FFT menu for UTD1000CL ; or press the
button and then F1 button to toggle between
FFT and MATH menus for UTD1000DL .
Pre ss SHIFT first and then the button to
access STATUS display .

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UTD1000L User Manual

: In DSO mode, press to access RECORD
(waveform record) menu; or press SHIFT
first and then the button to access
STORAGE menu.
: Under DSO mode, press to set up
SINGLE ( single trigger) function ; press
first SHIFT and then the button to access
REF ( waveform recall) menu.
: Under DSO mode, press to automatically
set up the waveform; press SHIFT first
and then the button to switch on full
autoset function. The Oscilloscope can
automatically adjust the ranges to obtain
optimal waveform based on the input
signal without any manual interference .
RUN/STOP : Under DSO mode, press to start/stop data
acquisition; if under DMM, pr ess the
button to lock measuring readings on
the screen.

: Under DSO mode, press to access
10

TRIGGER menu; or press SHIFT first and
then the button to access UTILITY menu;
: Under DSO mode, press to access
HORIZONTAL menu ; or press SHIFT
first and then the button to open HELP
information .
SHIFT
:: Combine with other buttons to select
function options
: Timebase: To change scan rate, ranging
ns
from 50s/div~10ns/div for 25MHz bandwidth models and 50s/div~5ns/div
for 50MHz - bandwidth models and
stepping in 1-2-5. Press "s" to access
relatively slower scan rate or "ns" to
speed up .

: Vertical Scale: To change vertical scaling,
ran ging from 5mV/div~20V/div and
stepping in 1-2-5. Press "V" to zoom
in current vertical scale or "mV" to
zoom out .

U TD1000L User Manual

: To toggle between vertical position and
trigger level , if vertical position is
choosen , vertical reference cursor
turns solid , then you can move
waveforms vertically with Up and Down
buttons. Press SELECT again to make
trigger level cursor solid, and also use Up
and Down buttons to adjust trigger point
location Under MEASURE menu, this
button is used to confirm selected
parameters, or it is to toggle between
Cursor 1 & 2 under cursor measurement.

: Arrow and OK buttons : OK button is
used to hide / display current menu ;
under DMM mode , it is used to
confirm if current divider has been
properly connected wh en making A
current measurement .

Shortcut Buttons Description:
SHIFT + OK : To save current interface into
internal memory , which can be
exported externally b y PC which
has been loaded with the
Oscilloscope software .
SHIFT + AUTO : to open full autoset function , in
which the Oscilloscope can
automatically adjust vertical
scale and horizontal timebase
based on the input signal so that
the optimal waveform can be
obtained without any manual
operation .
SHIFT + F1 / F2 / F3 / F4 : To open main trigger
menu

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UTD1000L User Manual

C hapter 4 Using Basic
Oscilloscope Functions

Describing the Display

About the Chapter
This chapter only briefs users on basic functions of
the Oscilloscope , for example , how to use
menus and execute basic operations , not a
step - by - step introduction on all functions .

Powering on the Oscilloscope
UTD1000L Series can be powered by : the
battery and power adaptor. The power supply
voltage from the adaptor is DC9V/1.5A . To
operate the Oscilloscope normally , please use
the power adaptor specified for the Oscilloscope.
Press Power button and SHIFT light illuminates
for 3 seconds, then the Oscilloscope logo appears,
indicating the Oscilloscope has already turned
on.

12

Figure 4-1 Display Interface
Besides the waveform , there are still a lot of details
about the waveform and oscilloscope control
settings on the screen:
1 . Trigger source status:
CH1 / CH2: indicates you can adjust the
waveform of this channel

U TD1000L User Manual

REF: indicates you can adjust the recalled
waveform .
FFT: indicates you can execute FFT operation
on the waveform
2 . Trigger coupling:
AC ac - coupled
DC dc - coupled
HF high- frequency reject
3. Trigger level readout
4. Trigger status:
ARMED The Oscilloscope is acquiring all pretrigger data and ignores all trigger events ;
READY The Oscilloscope has acquired all
pretrigger data and is ready to trigger ;
TRIG' ED The Oscilloscope has detected out
one trigger and is acquiring posttrigger data ;
STOP The Oscilloscope has stopped acquiring
waveforms
AUTO The Oscilloscope is in auto mode and
acquires wave forms without trigger ;
SCAN The Oscilloscope continuously

acquires and displays waveforms under scan
mode.
5. The time readout that indicates how far the
trigger point is from the central point;
6. The power supply indicator:
The Oscilloscope is powered by the battery ;
The Oscilloscope is powered by DC power
adaptor.
7. The marker for ground reference point for
displayed waveforms ;
8. 1×indicates probe attenuation factor for the
channel is 1×;
9. The readout for main timebase setting ;
10 ."Connected to PC" icon ;
11 . Readout for the current vertical scale factor;
12.Waveform Invert Indicator that indicates that
the waveform is reversely displayed;horizontal
midline.
13. Position readout from the channel reference
marker to the horizontal line on the screen.
13

UTD1000L User Manual

R esetting the Oscilloscope
To reset the Oscilloscope to the default, do the
following :
1 . Press SHIFT button, "shift" icon displays on
the upper right corner of the screen;
2 . Press UTILITY button and four options shows
on the bottom display ;
3. Press F2 button to select the default setup. Then
the Oscilloscope is set to the default settings;
Note: Pressing up arrow button can also set the
Oscilloscope to the default when powering on.

The Default setup is as follows:
Functions
Default Setup
Acquire Mode
Norma
SEC/DIV
1ms/div
VOLT/DIV
100mV/div
Trigger Coupling
DC
Channel Status CH2 Off (1000DL series )
Trigger Mode
Auto
Display Format
Vector
Persist Time
Auto
Display Style
Classic
Manual Display
Manual
Using Functional Menus
The procedures below show you how to select
functions with use of oscilloscope menus ;
1. Press any functional button on the keypad, then
corresponding options will show on the bottom
display, you can select one of these options with
use of F1 ~ F4 . After that, press OK button to
hide functional menus ;

14

Figure 4-2 Default Setup

UTD1000L User Manual

2. For the buttons printed with multiple functions, if
you want to choose one of these functions, please
press SHIFT button first, accompanied by shift
icon on upper right corner of display, then press the
corresponding button to obtain the function you
want.

Hiding Menus
Press down OK button to hide all button icons and
menus. To display menus or button icons, press OK
again.
Note: To set up auto hiding time for menus ,
please find corresponding option in
CONFIGURE menu .

Figure 4-3 Hiding Menus

Making Connections for Probe
Compensation
Connect the signal as follows:
1. Connect the probe connector to the
Oscilloscope input terminal and switch probe
factor to 10×on the probe.
2. You also need to set up probe factor on the
Oscilloscope , this factor cha nges vertical scale
15

U TD1000L User Manual

and ensures the accuracy for measurements . To
set up the probe factor on the Osciloscope,
press CHANNEL button , then F3 to set probe
factor to10×.

Figure 4-5 Squarewave Signal from the Oscilloscope Itself

Compensating the Probe

Figure 4 -4 Adjusting Probe Factor
3. Conenct the probe to the output terminal for
probe compensation on the Oscilloscope, press
AUTObutton, after several seconds, squarewave
displays ( 1kHz , 3Vpp , Peak - to - Peak Value ),
See Figure 4-5.
16

You need to compensate the probe whenever
connecting it to channels for the first time so as
to match the probe to the input channel .
Uncompensated probe may cause deviation or
error to the measurement. To compensate the
probe, do the following :
1. First of all, set p robe factor on the Oscilloscope
to 10×, turn the switch to 10× on the probe ,

U TD1000L User Manual

then connect the probe connector to the
oscilloscope input channel and the probe tip to
compensation output terminal ;
2. Then execute AUTO
3. Observe the displayed waveform

Over compensation correct compensation under compensation

If the displayed waveform is under-or overcompensated as indicated above, use the adjusting
tool with non-metal handle to adjust the variable
capacitor on the probe until correctly compensated
waveform shows .
Warning: To avoid any electric shock when
measuring the high voltage with use of the probe,
please ensure the probe wire is perfectly insulated,
and do not touch any metal part of the probe while
connecting to the high voltage source.

Setting Vertical & Horizontal Systems
and Trigger Level Manually
Vertical System
Press V ~ mV buttons to adjust the vertical
scale(VOLT/DIV) and display waveform with proper
size on the screen;
When channel cursor turns solid, press Up
and Down button to adjust ground reference
point that can allow the waveform to display at
proper location;

17

UTD1000L User Manual

Horizontal System
Press down s~ns buttons to change the timebase,
and the timebase readout in status bar will vary
accordingly. The horizontal scan rate ranges from
5ns~50s/div(10 ns~50s/div for 25MHz-bandwidth
models) and steps in 1-2-5
Press Right and Left arrow buttons to adjust the
horizontal location of the trigger point, which can
allows to observe more pretrigger data;

Figure 4-6 Moving Waveforms Vertically
Note: Use SELECT button to toggle between
vertical position and trigger level.

Figure 4-7 Adjusting Horizontal Timebase
18

UTD1000L User Manual

Trigger Level
When trigger level cursor turns solid, use Up
and Down arrow buttons to adjust trigger level
location .

Figure 4-8 Adjust Trigger Level
Note: Use SELECT button to toggle between
vertical position and trigger level for the channel.
Following chapter will offer more details about
the operation mentioned above

Autoset for Waveform Display
UTD1000L Series is designed with autoset
function that can automatically adjust the vertical
scale, scan timebase and trigger mode based on
the input signal until the optimal waveform can be
obtained. To apply the autoset function, the tested
signal should have a frequency at >=20Hz and
duty cycle>1%;
Under AUTOSET mode, th e coupling mode of
the channel is closely connected to DC autoset ;
When DC autset is set to off, all signals in the
channel is AC- coupled. If DC autoset is on, the
channel will choose the current setting as coupling
mode, when the current setting is DC coupling, the
signal will be DC-coupled and vice versa.
For example:
1. Input 1kHz , 2Vpp sine signal into two
channels , set coupling mode for both channels
to DC, press Shift+UTILITY and then F3 to set
19

U TD1000L User Manual

set DC autoset to off. If AUTOSET is applied, the
coupling mode is switched to AC mode.
2. Input 1kHz , 2Vpp sine signal into two
channels , then set AC coupling for one channel
and DC mode to the other . When AUTOSET is
applied , the coupling modes for both channels
keep unchanged .
Full Autoset for Input Signal
UTD1000L can offer creative auto function to
capture input signal . With this function applied,
the Oscilloscope varies ranges accordingly based
on the input signal until the proper waveform
display can be obtained without any manual
interference.
To perform autoset function, do the following :
1. Press SHIFT button, the shift icon shows on
upper right corner of the screen
2. Press AUTO button , when A icon displays on
the screen, autoset function has already turned on;

Note: When the model is UTD1000DL and both of
its two channels have signals, the signal from the
trigger source channel will be automatically
displayed and the other channel will turn off
under autoset mode ; if there is only one
channel input with signals , this channel signal
will be automatically selected and displayed no
matter which channel has been choosen as the
trigger source.

Figure 4-9 Full Autoset
20

U TD1000L User Manual

Note:
1. Under autoset mode , trigger mode is set to
"Auto" and cannot change .
2. Once you are in autoset mode , following
settings are forced to execute:
( 1) The Oscilloscope will switch into main
timebase status if the current display isn ' t under
this status ;
( 2) The coupling mode will be set to AC
mode and allows no change.
3. Any adjustment on the vertical scale or
horizontal timebase of the Oscilloscope that has
changed waveform vertical or horizontal location
will make the Oscilloscope automatically exit
autoset mode .

Run/Stop Data Acquisition
To stop the data acquisition :
1. Press RUN/STOP button, the Oscilloscope
stops data acquisition and STOP indicates on
the upper display ;
2. Repress RUN/STOP , then the oscilloscope
will restart the acquisition .

Figure 4-10 Stop Data Acquisition

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U TD1000L User Manual

Setting Frequency Counter
To switch on the frequency counter in models
such as UTD1000CL , do the following :
1. Press SHIFT button, and shift icon shows on
upper right corner of screen ;
2. Press UTILITY button to display utility menu ;
3. Press F3 button to set the frequency counter to
"On"
Note: The frequency counter of UTD1000DL
defaults at On status .

Figure 4-11 1000CL Trigger Frequency Counter
22

Adjusting Screen Intensity
To adjust the intensity of the screen , do the
following:
1. Press SHIFT button, and shift icon shows on
upper right corner of screen;
2. Press ACQUIRE button and select backlight
menu;
3. Press F1 to switch on backlight intensity bar;
4. Press Left and Right arrow buttons to adjust the
intensity to proper value;
5. Press F1 to switch off the backlight intensity bar.
Note: Press down AUTO button, the backlight
intensity bar will switch off automatically.

U TD1000L User Manual

Figure 4-12 Adjusting Backlight Intensity

bitmaps can be exported to PC in BMP format and
be saved up to 10sets.
Using Online Help
To use built-in help information, do the following:
1. Press SHIFT , and shift icon shows on the
right corner of screen ;
2. Press HELP button, H icon shows on the upper
display, indicating Help function has already turned
on ;
3. Then you can press corresponding menu
buttons to check detail information ;
4 . To turn off this function, repeat Step1 and 2 .

Saving Bitmap
To save bitmap , do the following :
1. Press SHIFT ,and shift icon shows on upper
right corner of screen ;
2. Press OK button, bitmap then will immediately
be saved to the internal memory .
Note: through control software loaded in PC, the
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Setting Single Trigger
To set trigger mode to Single directly , do the
following:
1. Press SINGLE button, the Oscilloscope will be
set under single trigger mode immediately.

Figure 4-13 Help System

Figure 4-14 Single Trigger

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U TD1000L User Manual

Viewing Oscilloscope Status
To view the current status of the Oscilloscope, do
the following:
1. Press SHIFT button , and shift icon shows on
upper right corner of screen ;
2. Press STATUS button, current settings of the
Oscilloscope will be displayed on the screen ;
3. To turn off the information, repeat Step 1 and 2 .
Note: Press down AUTO button, status information
will then automatically turn off.
Figure 4-15B UTD1000DL Status Information

Figure 4 - 15 A UTD1000CL Status Information

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U TD1000L User Manual

Checking Oscilloscope System Information
To check the system configuration of the
Oscilloscope, do the following:
1. Press SHIFT and shift icon shows on upper
right corner of screen ;
2. Press CONFIGURE button to switch on display
configuration menu ;
3. Press F4 button, then details such as
oscilloscope model, version will show on the
screen ;
4. Press F1 button to switch off the displayed
window.

Figure 4-16 System Information
Making Auto Measurements
There are two kinds of auto measurements
available in the Oscilloscope : Measure all or
customized parameters. Maximum 4 parameters
can be selected if you want to customize your
own measurements .

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Measuring All Parameters
To measure automatically all parameters , do the
following :
1 . Press MEASURE button to display
measurement menu ;
2 . For UTD1000CL , press F1 button ( press F2
for UTD1000DL ), then the screen will show
measurement results for all parameters .
Note:
1) Switching between different signal sources in
UTD1000DL will change the paramteters
accordingly for channels ;
2) If the signal is input into only one channel of
UTD1000DL , the rise delay , fall delay and
phase parameters will not be measured when
this channel is choosen as the signal source ;
or the signal source is set to the channel without
signal input, no parameter m easurement will be
made.

Figure 4-17A UTD1000CL measures all parameters

Figure 4-17B UTD1000DL measures all parameters

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U TD1000L User Manual

Measuring Customized Parameters
To measure customized parameters , do the
following :
1 . Press MEASURE button to display
measurement menu ;
2 . For UTD1000CL , press F2 button ( F3 for
UTD1000DL ), the screen will display
measurement paremeters available for your
selection ;
3 . Press Arrow Buttons to select the desired
parameters, indicated in different color ;
4 . Press SELECT button to confirm, the selected
parameter will automatically show on the screen.
You can select up to 4 parameters.
5. To turn off the menu , press F2 in
UTD1000CL ( for F3 in UTD1000DL ).
Note: For UTD1000DL , use F1 to select signal
source to be measured .

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Figure 4-18A UTD1000CL Customized Measurement

Figure 4-18B UTD1000DL Customized Measurement

U TD1000L User Manual

Using AVG mode for Smoothing Waveforms
To smooth the waveforms , do the following :
1 . Press ACQUIR button to display sample mode;
2 . Press F1 button to set sample mode to AVG ;
3 . Press Left and Right arrow buttons to set AVG
number to 16 . Then measurement results will
show after the Oscilloscope has averaged the data
for 16 times.

Figure 4-19 Smoothing with 16-times AVG Mode

Using Peak Detect Mode for Pulse Peak Display
This function can be used to display waveforms at
50 ns or wider ( Pulse Peak or other
asynchronous waveform).
1. Press ACQUIR button to display sample mode
menu ;
2. Press F1 button to set sample mode to Peak
Detect.

Figure 4-20 Sampling with Peak Detect Mode
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Observing Waveforms with use of Persistence
Select the Persistence function if you want to
observe continuously the dynamic signals.
1 . Press DISPLAY button to show Display Mode
menu ;
2 . Keep pressing F4 button to select between
1sec, 3sec, 5sec, Infinite or Auto options . If
display mode is set to Infinite , dynamic signals
will be kept on the screen . When set to Auto ,
the Persistence function will turn on accordingly.

30

Figure 4-21 Persistent Display for 3 Seconds

Selecting AC Coupling
The screen displays both AC and DC voltages if the
oscilloscope is set under DC coupling. If only the
small AC signal mixed in the DC signal is expected
to display, please select AC coupling mode.
To select AC coupling , do the following :
1. Press CHANNEL button to display Channel
menu ;
2. Press F1 button( F2 for UTD1000DL ) to set
Coupling to AC.

Figure 4-22A UTD1000CL AC Coupling

U TD1000L User Manual

Figure 4-22B UTD1000DL AC Coupling
Inverting the Waveform Display
To invert the waveform on the display, do the
following:
1. Press CHANNEL button to display Channel
menu;
2. Press F4 button to set Invert to on ,then the
waveform on the screen will be displayed
reversely.

Figure 4 - 23A

UTD1000CL Inverted Waveform

Figure 4-23B UTD1000DL Inverted Waveform

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Autoset for Signals with DC Offset
UTD1000L Series is designed with powerful
autoset function that makes it possible to
perform fast and accurate measurement in DC-
coupled mode for signals with any DC component.
Position parameter on upper right display of
screen: This parameter stands for position readout
for the channel reference marker that moves from
horizontal central line, if it is positive value, it
indicates the channel marker is above the
horizontal central line and the negative one is for
the marker below the horizontal central line. To
work out the final DC offset, first move the
waveform to the center of the screen, then multiply
the Position value by current amplitude range
readout , that is final DC offset result you want .
For example:
Connect UTD1000CL channel with 70mVpp AC
sine signal mixed with 1.1V DC offset, set the
channel to DC coupling, then perform AUTO
function, the waveform in Figure 4 - 24A will
32

show on the screen. On the display, Position
readout - 53.63div indicates the channel
reference marker moves 53.63div downward from
the horizontal central line . The current
amplitude range is 20mV/div , so DC offset
readout: 20mV/div×53.63div =1.0726V
Vpp readout: 72mV means the AC peak - topeak value of the signal
You can also directly read out the DC level
through AVG value.
AVG value: 1.0726V , which stands for the
signal DC level .
Through all parameters mentioned above, the
signal can be understood very easily.
Note: For UTD1000DL models , CH1 and CH2
are both set to DC coupling when inputting the
signal above , then perform the AUTO function ,
after that, also move the waveform to the center
of the display(See Figure4-24B ), and then
calculate DC offset with use of Position readout
and current amplitude range value .

U TD1000L User Manual

As for traditional oscilloscope, it needs hard work
to complete the task, for it has to set the coupling to
AC mode first to measure out the AC parameters,
and then reset the coupling to DC mode, manually
adjust vertical scale and use the cursor to work out
DC parameters, see figures as below:

Figure 4-24A UTD1000CL Setup for Signals with DC Offset

Figure 4-24B UTD1000DL Setup for Signals with DC Offset

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U TD1000L User Manual

With the comparison shown above, it is very
clear that UTD1000L series is designed with a
powerful ability to measure signals at much
faster speed and in a more visual way.

Figure 4 - 254 AC Parameter Measurement

Figure 4-26 DC Parameter Measurement
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UTD1000L User Manual

Chapter 5 Using the Multimeter

offered to use in the measurements

About the Chapter

Display Indicators

This chapter introduces the multimeter functions
built in the Oscilloscope; examples are also
offered to illustrate how to use the menus and the
basic measurements. To switch from Oscilloscope
mode to Multimeter mode, press DMM / DSO
button to access DMM mode, the display screen
will change into multimeter interface accordingly.

Description:
1.
Battery Indicator
2. AUTO Autoset indicator
3. Indicators for Measurement Types:
DC Voltage Measurement
AC Voltage Measurement
DC Current Measurement
AC Current Measurement
Resistance Measurement
Diode Test
Continuity Test
Capacitance Measurement
4. Relative Measurement
5. working statusIndicator ; HOLD: Freeze the
display
6 . Main Display for Measuring Values
7 . Manual Ranging Indicator

Connections to the Multimeter
UTD1000CL provides three multimeter input
terminals : COM , V/? , ? A/mA matched to 4-mm
banana plugs of test leads. One 10A current
divider UT-M07 is also used in the
measurements .
UTD1000DL has two multimeter input terminals :
COM, V/? , matched to 4-mm banana plugs of
test leads . One UT - M04 ( 4A current divider)
and one UT-M10 ( mA current module) are also

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Making Multimeter Measurements
Press DSO/ DMM button to access DMM mode,
the display then enters into the multimeter
interface. Multimeter functions are ready to use at
the moment.
Measuring Resistance
To measure resistance , do the following:
1 . Press down R button to set measurement type
to Resistance .
2 . Plug test lead connectors into multimeter
input terminals ( Black to COM and Red to
V/? ).
3 . Connect test leads respectively to the resistor
under test, then take resistance readings .

36

Figure 5-1 Measuring Resistance

U TD1000L User Manual

Testing Diodes
To test the diode , do the following:
1 . Press R button to set the measurement type to
Resistance.
2 . Press F1 button to select Diode option.
3 . Plug test lead connectors into multimeter input
terminals (Black to COM and Red to V/ ?).
4. Connect test leads to the tested diode, then
forward voltage drop reading for the diode
displays , accompanied by the measurement
unit V.

Testing for Continuity
To check the continutity , do the following:
1 . Press R to set the measurement type to
Resistance .
2 . Press F1 button to select Continutity .
3 . Plug test lead connectors into multimeter
input terminals (Black to COM and Red to V/? ).
4 . Connect test leads to tested points . The
mul timeter will beep if tested resistance
between tested points is lower than 70? .

Figure 5-3 Testing for Continuity
Fgiure 5-2 Testing Diode
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U TD1000L User Manual

Measuring Capacitance
To measure capacitance, do the following :
1 . Press R to set the measurement type to
Resistance.
2 . Press F1 button to switch measurement type
to Capacitance.
3 . Plug test lead connectors into multimeter
input terminals (Black to COM and Red to V/ ?).
4. Connect test leads to the capacitor under test,
then take the reading.
Note: To ensure the accuracy, please use the
relative mode if test capacitance is <5 nF .

Measuring DC Voltage
To measure DC voltage , do the following :
1 . Press down V button to set measurement type
to DC Voltage.
2 . Plug test lead connectors into multimeter
input terminals (Black to COM and Red to V/ ?).
3. Connect test leads respecti vely to tested points,
then take DC voltage reading.

Figure 5-5 Measuring DC Voltage
Figure 5-4 Measuring Capacitance
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U TD1000L User Manual

Measuring AC Voltage
To measure AC voltage, do the following :
1 . Press V button to set measurement type to DC
Voltage.
2 . Press F1 button to select AC Voltage option.
3 . Plug test lead connectors into multimeter
input terminals (Black to COM and Red to V/ ?).
4 . Connect test leads respectively to tested
points, then take AC voltage reading.

Measuring DC Current with UTD1000CL
To measure DC current lower than 4mA, do the
following:
1. Press I button to set measurement type to DC
Current , measurement unit is ?A , you can use
F3 to toggle between? A , mA and A ranges ,
the default is mA
2. Plug test lead connectors into input terminals
(Black to COM and Red to? A / mA )
3 . Connect test leads to tested points , then
take DC current reading .

Figure 5-6 Measuring AC Voltage
Figure 5-7 Measuring DC Current lower than 4mA
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U TD1000L User Manual

To measure DC current lower than 400mA, do the
following :
1 . Press I button to set measurement type to DC
Current .
2. Press F3 button to select mA range, and
measurement unit will be mA .
3. Plug test lead connectors into input terminals
(Black to COM and Red to ?A / mA )
4 . Connect test leads to tested points , then take
DC current reading .

Figure 5-8 Measuring DC Current lower than 400mA
40

To measure DC current greater than 400mA, do the
following:
1. Press I button to se measurement type to DC
Current.
2. Press F3 button to select A range, the
measurement unit will change into A accordingly.
3. Plug10A Current divider module ( UT-M07 )
into input terminalsCOM and ?A / mA , then
connect black and red test lead connectors
respectively to the module ( UT-M07 )
4. Connect test leads to tested points , than take
the DC current reading .
Warning: If test leads are connected to COM
and ?A /mA without use of 10A Current divider
module ( UT-M07) when measuring current
greater than 400mA, the fuse in the product will be
burnt out. Please have the fuse replaced by
qualified personnel if the incident happens

U TD1000L User Manual

Figure 5-9 Measuring DC Current Greater Than 400mA

Measuring AC Current with UTD1000CL
To measuring AC current lower than 4mA :
1 . Press I button to set measurement type to AC
Current, the measurement unit is ?A . You
can use F3 button to select between ?A , mA
and A ranges , the default is ?A .
2 . Plug test lead connectors into input terminals
(Black to COM and Red to ?A / mA )
3 . Connect test leads to tested points , then
take the AC current reading .

Figure 5-10 Measuring AC Current Lower Than 4mA
To measure AC current lower than 400mA, do the
following:
1 . Press I button to set measurement type to AC
Current ,
2. Press F3 button to select mA range, and the
measurement unit will show mA accordingly
3 . Plug test lead connectors into input terminals
(Black to COM and Red to? A / mA).
4 . Co nnect test leads to tested points , then take
the AC current reading .
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U TD1000L User Manual

Figure 5-11 Measuring AC Current Lower than
400mA
To measure AC current greater than 400mA , do
the following:
1 . Press I button to set measurement type to AC
Current ,
2 . Press F3 button to select A range, and the
measurement unit will change into A
accordingly .
3 . Plug 10ACurrent divider module(UT-M07 ) into
Input terminalsCOM and ?A / mA , then
42

insert black and red test leads properly into the
module
4 . Connect test leads to tested points , then
take the AC current reading .
Warning: If test leads are connected to COM
and ?A /mA without use of 10A Current divider
module ( UT-M07 ) when measuring current
greater than 400mA, the fuse in the product will
be burnt out . Please have the fuse replaced by
qualified personnel if the incident happens

Figure 5-12 Measuring AC Current Greater than
400mA

U TD1000L User Manual

Measuring DC Current with UTD1000DL
To measure DC current equal to or lower than 1mA ,
do the following:
1. Press I button to set measurement type to DC
Current , the measurement unit is ?A , you can
use F3 to toggle between ?A , mA and A
ranges , the default is mA
2. Plug mA current module (UT-M10) into input
terminals COM and V/? , then turn the switch
on the module to uA range .
3. Insert black and red test leads correspondingly
into Black and Red terminals on the module
4 . Then connect test leads to tested points ,
than take the DC current reading .

Figure 5-13 Measuring DC Current Equal to or
Lower than 1mA

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U TD1000L User Manual

To measure DC current within 1mA - 40mA , do the
following :
1. Press I button to set measurement type to DC
Current .
2. Press F3 to select mA range , the
measurement unit will change into mA
accordingly.
3. Plug mA current module (UT-M10) into input
terminalsCOM and V/ ?, then turn the switch
on the module to 40mA range.
4 . Insert black and red test leads correspondingly
into Black and Red terminals on the module.
5 . Then connect test leads to tested points ,
than take the DC current reading .

44

Figure 5-14 Measuring DC Current Lower than
40mA

UTD1000L User Manual

To measure DC current within 40mA-400mA , do
the following :
1 . Press I button to set measurement type to
DC Current.
2. Press F3 to select mA range, and the
measurement unit will display mA accordingly.
3. Plug mA current module (UT-M10 ) into input
terminalsCOM and V/ ?, then turn the switch
on the module to 400mA range .
4 . Insert Black and Red test leads correspondingly
into Black and Red terminals on the module.
5 . Then connect test leads to tested points ,
than take the DC current reading .

Figure 5-15 Measuring DC Current within 40mA400mA

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To measure DC current greater than 400mA , do
the following:
1 . Press I button to set measurement type to
DC Current .
2. Press F3 to select A range, and the
measurement unit will display A accordingly.
3. Plug 4A current module ( UT-M04 ) into input
terminals COM and V/? , then
insert test leads properly into the module.
4. Connect test leads to tested points, then take
DC current reading.
Warning: If test leads are directly connected to
V/? and COM terminals without use of 4A current
module ( UT-M04 ) when measuring the current
greater than 400mA , the fuse in the product will
be burnt out. Please have the fuse replaced by
qualifi ed personnel if the incident happens .

46

Figure5-16 Measuring DC Current Greater than
400mA

U TD1000L User Manual

Measuring AC Current with UTD1000DL
To measure AC current equal to or lower than
1mA , do the following :
1 . Press I button to set measurement type to AC
Current , the measurement unit is ? A . You
can use F3 button to select between ? A , mA
and A ranges , the default is ?A .
2 . Plug mA current module (UT-M10 ) properly
into input terminals COM and V/? , then turn
the switch on the module to uA range .
3 . Insert Black and Red test leads correspondingly
into Black and Red terminals on the module.
4. Connect test leads to tested points, then take the
AC current reading.

Figure 5-17 Measuring AC Current Equal to or
Lower than 1mA

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U TD1000L User Manual

To measure AC Current within 1mA-40mA , do the
following :
1 . Press I button to set measurement type to AC
Current ,
2. Press F3 to select mA range, the
measurement unit will change into mA
accordingly.
2 . Plug mA current module ( UT-M10) properly
into input terminals COM and V/? , then turn
the switch on the module to 40mA
range. Insert Black and Red test leads
correspondingly into Black and Red terminals
on the module .
4. Connect test leads to tested points, then take the
AC current reading.

48

Figure 5-18 Measuring AC Current Lower than
40mA

U TD1000L User Manual

To measure AC Current within40mA-400mA , do
the following:
1 . Press I button to set measurement type to AC
Current ,
2. Press F3 to select mA range, the
measurement unit will change into mA
accordingly.
3. Plug mA current module (UT-M10) properly into
input terminals COM and V/ ?, then turn the
switch on the module to 400mA range .
4. Insert Black and Red test leads correspondingly
into Black and Red terminals on the module.
5. Connect test leads to tested points, then take the
AC current reading.

Figure 5 - 19 Measuring AC Current within40mA400mA

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U TD1000L User Manual

To measure AC Current greater than 400mA , do
the following:
1 . Press I button to set measurement type to AC
Current ,
2. Press F3 to select A range, the measurement
unit will change into A accordingly.
3. Plug 4A current divider module (UT-M04 )
properly into input terminals COM and V/? ,
then insert Black and Red test leads
correspondingly into the module.
5. Connect test leads to tested points, then take the
AC current reading.
Warning: If test leads are connected to V/?
and COM terminals without use of 4A current
module ( UT-M04 ) when measuring the current
greater than 400mA , the fuse in the product will
be burnt out. Pleas e have the fuse replaced by
qualified personnel if the incident happens.

50

Figure 5-20 Measuring AC Current Greater than
400mA

U TD1000L User Manual

Data Hold

Making Relative Measurement

You can freeze the displayed readings any time as
you want.
1 . Press RUN /STOP to freeze measuring values ,
and HOLD icon blinks on the display .
2 . Repress RUN /STOP to restore the
measurement.

Relative measurement displays a current
measuring result relative to the specific reference
value.
Refer to capacitance measurement in relative
mode. First of all you need to obtain a reference
value:
1. Press R button to set measurement type to
Resistance.
2 . Press F1 button to select Capacitance option
3. Connect test leads to input terminals (Black to
COM and Red to V/ ? )
4. Wait until the reading becomes stable, then
press F2 button to access the relative mode, ?
icon shows on the upper display and the
reference value appears just below ?icon.
5. Connect test leads to the capacitor under test,
then take capacitance reading on the display .

Figure 5-21 Freezing Measurement Values

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Figure 5-22 Measuring Capacitanc in Relative
Mode

status accordingly .
3.Under manual ranging mode, keep pressing F3
button to reach up to the highest range ,
after that, then the selected range jumps directly
to the lowest range and circulates again.
The currently selected range shows just above
measuring readings.
4 . Press F2 button, Auto icon shows on left upper
display , indicating the multimeter has
returned to full autoset mode.

Selecting Manual / Auto Ranging
The multimeter defaults at auto mode. To access
manual ranging, operate as follows:
1. Press V or R button, and measure mode
option is AUTO .
2 . Press F2 to select manual measure mode ,
then the ranging mode will change into Manual
52

Figure 5-23 Manual Ranging

U TD1000L User Manual

Chapter 6 Using the Oscilloscope
in Details
About the Chapter
This chapter offers a step-by-step introduction
on UTD1000L Series functions . Detail
information about functional buttons on the front
panel and operation examples are included
here . It is recommended that you should read
through this chapeter in order to get more and
systematic knowledge of the Oscilloscope.

Figure 6 - 1A Channel Setup Menu

Setting Vertical System
UTD1000CL Channel Setup
The channel is designed with independent setup
menu, press CHANNEL button to display the
operating menu shown as below:

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See Channel Menu in Following Table:
Table 6- 1A
Coupling
Wave
Display

Probe
Factor
Invert

54

DC
AC
Ground

AC &amp; DC components pass
DC component is blocked
Display DC level when the channel input terminal is equivalently grounded.

On
Off

10×
100×
1000×

To display the channel waveform
To turn off the channel waveform display

Off
On

To display the waveform normally.
To invert the waveform display

Select one of them to match to the probe , to ensure accurate reading.
Four types are available:1× ?10× ?100× ?1000×.

U TD1000L User Manual

Moving Waveform Vertically
When UTD1000CL channel marker turns solid,
press Up and Down arrow buttons to move the
waveform vertically .

Figure 6 - 2A Moving Waveform Vertically

Setting waveform display
Open the channel menu, and then press F2
button to turn on/off waveform display

Figure 6 - 3A Turn off Waveform Display

Note: if the channel marker is internally empty ,
press SELECT button to access the solid status
before moving the waveform vertically.

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Set Probe Factor
To match with the probe factor on the probe,
you need to set up corresponding factor in channel
menu. For example, the probe factor is 10:1 ,
please set Probe option in the menu to 10×.
Do the same setting for other selected probe
factor in order to ensure accurate voltage
reading.
Under channel menu, press F3 under channel
menu to set up probe factor .
Probe Attenuation Factor VS Menu Option, see
following table:
Table 6- 2A
Probe Attenuation
Factor
1:1
10:1
100:1
1000:1
56

UTD1000DL Channel Setup
The channels have their own setup menus.
Repeat pressing CHANNEL to toggle between
CH1 and CH2 menus and display corresponding
menu options as shown below:

Menu Option

1 0×
100×
1000×

Figure 6-1B Channel Menu Setup

U TD1000L User Manual

Please see channel menu in the following table:
Table 6-1B

Channel

Off
On

Turn off CH1 or CH2 waveform
Turn on CH1 or CH2 waveform

Coupling

DC
AC
GND

AC &amp; DC components pass
DC component is blocked
Display DC level when the channel input terminal is equivalently grounded.

Probe
Factor
Invert


10×
100×
1000×
Off
On

Select one of them to match to the probe, to ensure accurate reading.
Four types are available: 1× ?10× ?100× ?1000×.
To display the waveform normally.
To invert the waveform display

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1.Moving Waveform Vertically
Use Up and Down buttons to move the current
waveform vertically when the channel marker
becomes solid. If you want to move the waveform
from another channel, please press CHANNEL
button again before moving the waveform.

Figure 6-2B Moving Waveform Vertically

58

Setting Waveform Display
Press CHANNEL button to toggle between
different channels. In the channel menu , press
F1 submenu button to turn on/off the waveform of
the current channel. In order to on/off another
channel waveform, you need to press CHANNEL
button again before pressing F1 button

Figure 6-3B Turn on Waveform Display for Dual
Channels

U TD1000L User Manual

Setting Probe Factor
To match with the probe factor on the probe,
you need to set up corresponding factor in channel
menu. For example, the probe factor is 10:1 ,
please set Probe option in the menu to 10×.
Do the same setting for other selected probe
factor in order to ensure accurate voltage
reading.
Under channel menu, press F3 to set up
probe factor. To set up probe factor for another
channel , please press CHANNEL again and then
the F3 button.
Probe Attenuation Factor VS Menu Option, see
following table:
Table 6-2B
Probe Attenuation
Menu Option
Factor
1:1
10:1
100:1
1000:1


1 0×
100×
1000×

Setting Horizontal System
Changing Timebase
Press s/ns button slow down or speed up the
scan rate from 10ns or 5ns/div~50s/div .
Notes: For 25MHz - bandwidth mo dels: 10ns/div~
50s/div ; 50MHz - bandwidth Models : 5ns/div~
50s/div .
Moving Waveforms Horizontally
Press Left and Right buttons to adjust pretrigger
depth. The trigger location is usually set at
horizontal center on the screen. With the
adjustment, you can observe 6 div pretrigger
and delay data. Through moving the waveform
horizontally, more trigger information can be
viewed, which let users know more about
pretrigger situation. For instance, by observing and
analyzing pretrigger data of glitches occurring in
circuit start- up, you can trace down the cause
to the glitches .
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U TD1000L User Manual

Press HORIZONTAL button to switch on
horizontal menu , refer to the following figure :

Zooming in/ out Waveforms
Switch on horizontal menu and press F1 button
to zoom in one segment of the wavefom. The
timebase for expanded window shouldn ' t be lower
than that of main window. Note: Timebase faster
than 100ns cannot enter into expanded window.

Figure 6-4 Horizontal Setup Menu
There are two options in horizontal menu: Window
and Hold-Off
Figure 6-5
Zoom

60

Screen Display under Window

U TD1000L User Manual

Under window zoom function , there are two
separate display zones as indicated in the figure
above . The upper part is for the original waveform.
Press OK button and then use Left and Right
buttons to select the waveform to be expanded on
the left or right, or enlarge or narrow down the
selected zone with s/ns button.
The lower display is for the expanded
waveform corresponding to the selected original
zone. One point worth mentioning is that compared
with the main timebase, the expanded timebase
has improved the resolution for the waveform
display (See Figure 6-5). Since the displayed
waveform corresponds to the selected zone of
upper part, using s / ns button to narrow down the
selected zone can enable the expanded waveform
to have better timebase , namely , a higher
waveform amplification factor in a horizontal
direction .

Adjusting Trigger Hold- Off
Switch on horizontal menu, use Right and Left
buttons to adjust hold-off time (100ns-1.5s ). It can
be applied to observe complex waveforms ( eg:
burst ). Hold-off time is to adjust data acquisition
period of the oscilloscope to stay in a integral
multiple related to the period of complex
waveform so that the Oscilloscope and complex
waveform can synchronize.
For example, appl y tested combined signals into
Ch1 . Press HORIZONTAL to turn on horizontal
menu , then press Right and Left buttons to adjust
the hold-Off time until displayed waveform
become stable . See Figure 6-6 :

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U TD1000L User Manual

Setting Trigger System

Figure 6-6 Trigger Hold - Off
Note:
1. The trigger hold-off time can be adjusted only
when horizontal menu displays.
2. Generally hold-off time is a little smaller than
"Big Period', for instance for RS232
communication signal waveform , hold - off
time should be a little larger than start edge
time of each frame in order to easily observe
the waveform .
62

Trigger system determines when the
Oscilloscope starts to acquire data and display
waveforms. Once the trigger is properly set, the
Oscilloscope can transform unstable signal into
meaningful waveform. When the acquisition starts ,
the Oscilloscope continuously acquires enough
data to fill the pretrigger portion that is
displayed to the left of trigger point . Then the
trigger occurs, the Oscilloscope will continue to
acquire enough data to fill the posttrigger
waveform to the right of trigger point. TRIGGER
button is designed to set up the Oscilloscope
trigger functions .
TRIGGER : Trigger menu button
Trigger Level: to set up signal voltage that
corresponds to the trigger point .
Press TRIGGER button to turn on trigger menu as
indicated in the figure below, then press F1 button
to switch between different trigger types.
Press F2 to select trigger s ource.

U TD1000L User Manual

Figure 6-7 Trigger Menu
Trigger Controls
Four trigger types are available: edge, video, pulse
width and slope, every of which is coupled with
different functional menu . There is still one
type - common setting -- used to set up trigger
source, trigger coupling and trigger modes.
Edge Trigger: Trigger on rising or falling edge.
You can adjust trigger level to change vertical

location on the edge for trigger point , that is
the cross point between trigger level line and
the signal edge on the screen.
Pulse Width Trigger: Trigger when the pulse
width of trigger signal reaches up to preset trigger
conditions.
Video Trigger: Trigger on fields or lines of
standard video sig nal .
Slope Trigger: Use the rise or fall speed rate
of the signal as trigger condition .
Check details for different kinds of trigger menus

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UTD1000L User Manual

Common Setting
Common Setting is used to set up common trigger
items, refer to the table below for details:

Table 6-3
Menu
Type
Source

Coupling

Mode

Figure 6-8 Trigger -- Common

64

Description
to set up common
Common trigger items
CH1
Set CH1 as trigger source
CH2
Set CH2 as trigger source
DC component is blocked
AC
DC &amp; AC components pass
DC
HF Reject Reject high frequency
component at>80kHz
The Oscilloscope
Auto
automatically acquires data
when no trigger signal has
been detected.
Normal Acquire waveform only
when the trigger condition
is met;
Settings

Note:
To set up the common setting, shortcuts are also available
to execute the operation:
1. Press SHIFT button, Shift icon displays on right upper
corner of the screen;
2. Press F1 / F2 / F3 / F4 button to display common
setting menu.

U TD1000L User Manual

Edge Trigger
Edge trigger is to trigger on trigger threshold
value of signal edge. Please see the table
below for edge trigger menu :

Table 6-4
Menu
Type
Slope

Description
Settings
Set trigger Type to Edge.
Edge
Set to trigger on rise edge
Rise
of signal.
Set to trigger on fall edge
Fall
of signal.

Figure 6-9 Trigger-Edge Type

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U TD1000L User Manual

Pulse Width Trigger
It determines the trigger time based on pulse width,
which helps you to capture abnormal pulse by
setting specific pulse width conditions.

Table 6 - 5
Menu
Type

Polarity

Settings Description
Set trigger Type to Pulse
Pulse
Width Width
Positive Set positive pulse width as
trigger signal .
Negative Set negative pulse width as
trigger signal .
=

Qualifier

<
>

Figure 6-10 Trigger- Pulse Wdith Type
Time

66

Trigger when input pulse width
equals to set value;
Trigger when input pulse width
is less than set value;
Trigger when input pulse width
is greater than set value;

To set up pulse width time
value,use Left and Right
arrow buttons to set the
value when the menu is
displayed.

U TD1000L User Manual

Video Trigger
Trigger on fields or lines of NTSC or PAL
standard signals if video trigger is selected .

Table 6 - 6
Menu
Type

Settings Description
Set trigger Type to Video .
Video
PAL

Format
NTSC

Trigger on PAL format
video signal .
Trigger on NTSC format
video signal .

Trigger synchronically on all
lines.
Odd Field Trigger on odd fields.
Even Field Trigger on even fields .
All Lines

Syn

Figure 6-11 Trigger- Video Type

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U TD1000L User Manual

Slope Trigger
Trigger occurs only after rise or fall speed rate
meets set value.

Figure 6-13 Trigger - Slope Type ( Page 2 )
Figure 6-12 Trigger- Slope Type (Page 1)

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UTD1000L User Manual

Table 6-7
Menu
Type
Slope Type

Qualifier

Settings
Slope
Rise
Fall
>
<
=

Next
Slew Rate

Threshold
Back

Low
High
Low &amp; High

Description
Set trigger Type to Slope
Trigger on rising edge that traverse between thresholds .
Trigger on falling edge between thresholds
Trigger When the slope is greater than the set value of slew rate.
Trigger When the slope is less than the set value of slew rate.
Trigger When the slope equals to the set value of slew rate.
Page 2 of Slope Menu
To set up slew rate value, use Left and Right arrow buttons to
pulse width time when the menu is displayed.
Use Up and Down buttons to move low-level threshold
Use Up and Down buttons to move High-level threshold
Use Up and Down buttons to move low-and high-level thresholds.
To return to Page 1 of Slope Menu.

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Term Explanation
1 . Trigger Source : Input channel is used as the
trigger source
? Input Channel: Input channel (CHI) is the most
commonly used trigger source. For the channel
selected as the trigger source, it should be
switched on before it works normally.
2 . Trigger Mode: decide what the oscilloscope will
do when no trigger event occurs. Three trigger
modes are offered: Auto, Normal and Single .
? Auto: The system automatically acquires data
even there is no signal input and therefore displays
scan reference line on the screen; when the
trigger occurs , it converted into trigger scanning
and synchronizes with the signal on its own .
Note: The Oscilloscop e will go into SCAN mode if
waveform scan rate is set at 50ms/div or lower
timebase .
? Normal: Under this mode, the Oscilloscope
70

acquires the waveform only after the trigger
conditions are met. It stops to acquire and keeps
waiting if no signal is input. Once the trigger
occurs, the scan starts.
? Single: You just need to press RUN button if
under single mode , then the Oscilloscope waits
to trigger. It begins to acquire and display all
acquired waveforms once single-shot trigger signal
is detected, after that, it stops.
3 . Trigger Coupling: To decide to pass which
kind of components through the trigger circuits .
The types include: DC, AC and Hf Reject.
? DC: passes through all components of the
signal
? AC : blocks DC component and attenuate
signals at <10Hz
?HF Reject: attenuates high frequency
component at >80kHz

U TD1000L User Manual

4 . Pretrigger/Delay Trigger : Capture data before
/after the trigger event . The trigger is usually
located at the horizontal center point on the screen,
for example, you can observe 6div pretriger and
delay information , adjusting the waveform
horizontally can let you view on more pretrigger
information . Pretrigger can indicate what the
waveform is like before the trigger event. So this
function can make it easy, for instance , to find
out the cause of glitches in start moment of
circuits through observing and analyzing
pretrigger data .

Setting Acquisition Mode
Press ACQUIRE button to access acquisition
mode , see the following table :
Table 6-8
Description
Settings
Menu
Normal
Set to normal sampling
Mode
Peak Detect Set to Peak Detect mode,
AVG
Set to AVG sampling mode
To set AVG times,
AVG Number
stepping in multiples of
(only displayed
two, that is from 2,4,8,
under AVG
16,32,64,128,256 to
mode)
2 ~ 256
512,turnLeft and Right
arrow buttons to change
average times in
displayed menu.
Note:
1 . Use no rmal mode when you observe single shot signal .
2. Please select Peak mode if you want to
observe signal envelope and also to avoid any
mix-up
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UTD1000L User Manual

Term Explanation
Normal Mode: The Oscilloscope samples the
signals at equal time interval to create the
waveform on the display.
Peak Detect: Under this mode, the Oscilloscope
uses Max. and Min. values detected in each sampling
interval to form waveform on the display. It is
suitable to capture and display narrow pulse which
may probably be neglected if using Normal mode.
However the noise under Peak Detect sounds
louder.
AVG Mode: The Oscilloscope captures certain
numbers of waveforms and calculates their average
values that will be used to form waveforms on
the display. This mode can reduce random noise.
Fast Acquisition: it only acquires points for Min.
memory depth required for display, which can
shorten the hold-off time between each
acquisition and realize superb capture rate. It can
significantly increase the possibility to find out rarely
seen issue.
72

Setting the Display
Press DISPLAY button to access display menu,
please refer to the follow table:,

Figure 6-14 Waveform Display Setup

U TD1000L User Manual

Table 6-9
Menu
Format

Settings
YT
XY

Description
To display relationship between voltage(vertical) and time(Horizontal).
X-Y display mode using Ch 1 signal to form X axis and Ch2 signal for Y
axis ( applicable only for dual channel model )

Format

Vector
Dots

Connect sample dots and display .
Directly display sample dots

Graticule

Full
Grid
Cross Hair

To set the graticule of waveform display zone to Full, Grid and Cross
Hair mode

Off
1s
Persist

3s
5s
Infinite

Update the waveforms at normal rate .
Update after waveform data is hold for 1 second .
Update after waveform data is hold for 3 seconds .
Update after waveform data is hold for 5 seconds,
Waveform data is kept on the screen, new data , if any , could be added
into the disp lay continuously.

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Term Explanation:
Display Format: VECTOR Display fills out all
blanks between neighboring points , DOT
Display just shows sample points .
Update Rate: The times that the oscilloscope
updates the waveforms per second. it reflect how
fast the Oscilloscope could allow you to observe
signal dynamic change.
Y-T Mode : In this mode, Y axis represents
voltage and X axis for the time .
Slow Scan Mode: When the timebase is set at
50ms/div or lower, the Oscilloscope will enter
into slow scan mode . This mode is applied to
observe low- frequency signal . It is
recommended that channel coupling is set to
DC .

Setting Auto Measurements
The section below introduces in details the
powerful auto measurement function owned by
the Oscilloscope . Press MEASURE button to
open auto measurement menu, see the table
below :

Figure 6 - 15A UTD1000CL Auto Measurement
Menu

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UTD1000L User Manual

Table 6-10
Menu
Source

All

Figure 6-15B UTD1000DL Auto Measurement
Menu

Select

Clear

Description
Settings
Select CH1 as the signal
CH1
source.
Select CH2 as the signal
CH2
source.
ON
To measure all parameters.
Turn on auto measurement
OFF
function.
ON
To select the parameters to be
measured by using SELECT
button.The selected parameter
will be displayed on the
screen. Max.4 items can be
choosen at a time.
Turn off customized parameter
OFF
selection box
To clear the displayed
customized parameter

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UTD1000L User Manual

Case 1: To display all measurement parameters
of the displayed channel, do the following :
1 . Press MEASURE button to open parameter
measurement menu ;
2 . Press F1 of UTD1000CL ( F2 of UTD1000DL)
to set All option to On;
Then all measurement parameters display on the
screen. See the Figures below:

Figure 6 - 16A UTD1000CL measures all
parameters
76

Figure 6-16B UTD1000DL measures all
parameters
Case 2 : To measure Vpp and Amplitude
parameters , do the following:
1 . Press MEASURE to open parameter
measurement menu;
2 . Press F2 of UTD1000CL ( F2 ofUTD1000DL )
button to open parameter selection box ;
3 . Press Arrow Buttons t o select Vpp parameter;

UTD1000L User Manual

4 . With Vpp parameter chosen , press SELECT
to confirm ; and one marker will appear on
the front of Vpp parameter to indicate it has
been successfully selected , the parameter
will show on the display accordingly .
5 . Do the same to select Amplitude parameter;
6 . Press SELECT to confirm , one marker also
show on the front of Amplitude parameter ,
and then the parameter displays on the
screen .
7 . Press F2 of UTD1000CL ( F3 of UTD1000DL )
to turn off parameter selection box ;
See the following figures for Vpp and Amplitude
parameters displayed on the upper right part of
screen:

Figure 6-17 Select Vpp Parameter

Figure 6-18 Select Amplitude Parameter
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UTD1000L User Manual

Auto Parameter Measurements

Figure 6-19 Display Selected Parameters
Note: Parameter selection is to measure
parameter immediately. There are 19 types of
parameter measurements for UTD1000CL and 22
types available in UTD1000DL . Under general
circumstances , not all parameters , but just
some of them are required to be measured.
Therefore the users can customize their
measurements as expected. The software can
select up to 4 parameters displayed on the screen.
78

Figure 6-20 Voltage Measurement
The voltage parameters that the Oscilloscope can
automatically measure include:
Maximum Value (Vmax ) : Voltage measured
fr om the highest point of waveform to the zero
ground
Minimum Value ( Vmin): Voltage measured from
the lowest point to the ground
Top Value (Vtop): Voltage measured from the flat
top to the ground.

UTD1000L User Manual

Base Value (Vbase ): Voltage measured from the
base of the waveform to the ground
Middle Value (Vmid) : a half of amplitude value
Peak-to-Peak Value (Vpp ): Voltage measured
from the highest point to the lowest point of
waveform
Amplitude (Vamp): Votage measured from the
top to the base of the waveform
Overshoot: ( Maxi - Top )/ Amplitudex100%
Preshoot:( Min-Low)/Amplitudex100%
Average Value : The arithmetic mean over one
cycle in the waveform
RMS Value (Vrms): Effective value, the root mean
square voltage over one cycle in AC signal
waveform that corresponds toDC voltage with
equal generated energy calculated in this cycle.

Figure 6-21 Time Measurement

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UTD1000L User Manual

The time parameters the Oscilloscope can
automatically measure contain:
RiseTime : The time required to rise from 10%
to 90% of waveform amplitude.
FallTime : The time required to fall from 90% to
10% of waveform amplitude .
Positive Pulse Width ( + Width):
The distance between the mid ( 50%) amplitude
points of a positive pulse.
Negative Pulse Width ( - Width ):
The distance between the mid (50%) amplitude
points of a negative pulse .
Rising Delay: The delay time between rising
edges from A to B
Falling Delay: The delay time between falling
edges from A to B
Positive Duty Cycle ( + Duty): the ratio of
positive pulse width to the period.
Negative Duty Cycle ( - Duty ): the ratio of
negative pulse width to the period .
80

Recording and Storage
Recording
Press RECORD button to open waveform
record menu . There are two independent menus
shown as below:

Figure 6-22 Waveform Record Menu

UTD1000L User Manual

Set up as the following table:
Table 6-11 Record Menu
Menu
Description
Settings
To turn on/off waveform
Wave Record
Record
record function.
Play
To play recorded
waveform
Stop
To stop recording or
playing waveforms
Record
To begin the recording.

Table 6-12 Save Menu for Recorded Waveforms
Menu

Wave Record

Save

Recall

Figure 6-23 Save Menu for Recorded Waveforms

Settings

Description
There are 1-5 location
options available, use
arrow buttons to select
when the menu displays
To save recorded
waveform to internal
memory.
To recall the waveform
record that is saved in
internal memory

Note: You can also save the recorded waveform to
PC using the control sofeware and play it on PC.
Case 1 : To record channel waveforms and save
them to the internal memory, do the following:
1 . Press RECORD button to access record menu ;
2 . Press F1 to set to Record option ;
3 . Press F4 to begin recording. To stop
recording, press F3 button;
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UTD1000L User Manual

Figure 6-25 Setting Waveform Storage Menu

Figure 6-26 UTD1000CL Waveform Storage Menu
82

Figure 6-26B UTD1000DL Waveform Storage Menu
Set up the storage menu as follows:
Table 6-13
Menu
Description
Settings
Setup
To save current setups of
menus;
Type
Waveforms To save channel waveforms
Use arrow buttons to select
Location
1-20
storage location.
To select the channel of the
CH1
Source
saved waveform.
CH2
Save
To save the selected items.
To recall the saved
Recall(refer to
parameters when the
the following
menu is on.
section for
recall setup)

UTD1000L User Manual

4 . Press F1 to set to Save option ;
5 . Use Arrow Buttons to set the location to 1;
6 . Press F3 to save the recorded waveform,
"Saving... " shows on the screen. When
"Saving... " icon disappears , it indicates the
waveforms have already been saved into internal
memory.
Note: Model UTD1000CL can record up to 300
screens of waveforms, and it is up to 150 for Model
UTD1000DL. If following operations are performed
during recording, the recording will stop.
? Press RUNSTOP/SINGLE button ;
? Press AUTO or SHIFT+AUTO button
? Turn Timebase range to access SCAN mode.
Case 2: To recall recorded waveform in Case 1
from the internal memory and rep lay it , do the
following :
1 . Press RECORD to access record menu ;
2 . Press F1 to set to Save option ;
3 . Press Arrow Buttons to set Location to 1
4 . Press F4 to begin recalling, "loading... "
indicates on the screen , after the loading

finishes , "Load Success" indicates .
5 . Press F1 to set to Record option ;
6 . Press F2 button to begin playing the recalled
waveforms automatically, press F3 to stop or use
Arrow Buttons to select the waveform to be played.

Figure 6-24 Replay Waveform Record
Storage
To store the waveforms, do the following:
1. Press SHIFT button, and shift icon shows on
upper right part of screen ;
2. Press STORAGE button to a ccess storage
menu ;

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Recalling
To recall the waveforms, press SHIFT button and shift
icon shows on the upper right part of screen ; then press
REF to access waveform recall menu.

Set up as shown in the following table:
Table 6-14
Table 6-14
Menu

Settings
REF A

Ref Wave

Location
Recall
Figure 6-27 Recall Reference Waveforms
Clear

84

REF B

1-20

Description
Model UTD1000CL default at
REFA option
UTD1000DL can recall REFA
or REFB individually or both
of them at the same time.
Use Right and Left buttons to
select the location to be
recalled.
To begin the recalling
For Model UTD1000CL, it's
used to turn off recalled
waveform;
For Model UTD1000DL, it's
used to turn off current
waveform( REFA or REFB )

UTD1000L User Manual

Case 1 : To save and recall channel waveforms
to the internal channel:
Saving Waveforms
1. Press SHIFT and shift icon shows on upper
right part of screen ;
2. Press STORAGE to access storage menu ;
3. Press F1 to set Type to Waveform;
4. Press Left &amp; Rightbuttons to set Location to 1 ;
press F3 to select target Source ; ( Only
available in UTD1000DL)
5. Press F3 of UTD1000CL to save, and also
F3 button for UTD1000DL , then "storage
success" shows on the display , indicating the
waveform has been successfully saved into the
Oscilloscope ;

Recalling Waveform
6.Press SHIFT , shift icon shows on upper right
part of display.
7.Press REF to access waveform recall m enu ;
8.Press F1 of UTD1000DL to select between
REFA or REFB ; UTD1000CL defaults at
REFA ;
9.Press Left &amp; Right arrow buttons to set
Location to 1 ;
10 . Press F3 to recall, "Load Success" will
show to indicate the waveform has been
successfully displayed on the screen too ;
11 . Press F4 to turn off the current reference
waveform.

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Making Cursor Measurements
To make cursor measurements, do the following:
1. Press SHIFT and shift icon shows on upper
right part of display.
2. Press CURSOR to access cursor menu ;
3. Press F2 of UTD1000DL to choose the
channel for cursor measurement (No selection
for UTD1000CL, it defaults at CH1)
4 . Press F1 to set up measuring type.
There are two options available for measuring
Type in cursor menu: Voltage and Time.
When measuring voltage, use SELECT and
arrow buttons to adjust the locations of two
cursors in order to measure ? V parameter ,
do the same with ?t measurement.
Voltage/Time Measurement Tips: Cursor 1 and
Cursor 2 shows simultaneously on the screen,
us e arrow buttons to remove the cursors and
press SELECT to choose and adjust the desired
one . Displayed readout is the voltage or time
86

between two cursors .
When the cursor function turns on, measuring
values can be automatically shown on upper left
corner of the display.

Figure 6-28 Cursor Menu for Time Measurement

UTD1000L User Manual

Table 6-15
Menu
Type

Mode

Vertical Unit

Func Switch

Description
Use the cursor to measure
Time
the time
Independent Move each cursor
independently
Tracking
Move two cursors
simultaneously and keep
?t unchanged
measurement parameter
Sec
is time
measurement parameter
Hz
is frequency
Use arrow buttons to set
Channel
the target to channel
waveform;
Use arrow buttons to set
Trigger
the target to trigger level;
Use arrow buttons to set
Cursor
the target to the cursors,
press SELECT to select
between Cursor 1 and
Cursor 2.
Settings

Figure 6-29 Cursor Menu for Voltage Measurement

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Table 6-16
Menu
Type

Mode

Func Switch

88

Description
Use the cursor to
Voltage
measure the voltage
Independent Move each cursor
independently
Tracking
Move two cursors
simultaneously and keep
?V unchanged
Use arrow buttons to set
Channel
the target to channel
waveform;
Use arrow buttons to set
Trigger
the target to trigger level;
Use arrow buttons to set
Cursor
the target to the cursors,
press SELECT to select
between Cursor 1 and
Cursor 2.
Settings

Interface Setup
To set up the display interface for the Oscilloscope,
do the following:
1. Press SHIFT , shift icon shows on uppert
right corner of display .
2. Press CONFIGURE to enter into diplay
configuration menu;

UTD1000L User Manual

Table 6-17
Menu
Language

Utility Setup
Settings

Description

Multilingual To select the desired language
Classic,
Traditional,
Style
To select display style
Modern,
White &amp; Black
To set up waiting time before
the manual turns off: 5s, 10s,
20s, Manual, Manual--the
Menu Display
menu will not turn off
automatically, use OK to turn
it on/ off.
System Info

To set up the display interface for the Oscilloscope,
do the following:
1. Press SHIFT , shift icon shows on upper right
corner of the display ;
2. Press UTILITY to access Utility menu.
Menu Setup shown as in the following table:

To display oscilloscope model,
hardware version, software
version, etc;

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UTD1000L User Manual

Table 6-18
Model UTD1000CL
Function menu
Self - Calibr
Default
Freq Counter
Clear

Settings
----------On/Off
------

Description
The Oscilloscope will calibrate the system automatically.
The Oscilloscope returns to factory default status.
Turn on /off trigger frequency counter.
Clear saved or recorded waveforms or settings in the Oscilloscope, etc ;

Settings
----------On/Off
------

Description
The Oscilloscope will calibrate the system automatically.

Model UTD1000CL
Function menu
Self - Calibr
Default
DC Autoset
Clear

The Oscilloscope returns to factory default status.
Turn on/off DC signal self-identification function
Clear saved or recorded waveforms or settings in the Oscilloscope, etc;

Key Points :
Self-Calibration: You need to run this operation to avoid any measurement error arising from environment
change. To ensure an accurate calibration , please power on the Oscilloscope and warm it up for 20
minutes .
Full Autoset: The Oscilloscope can automatically adjust its ranges based on the input signal to present
users optimal waveform without any manual interference.
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UTD1000L User Manual

Executing Mathematic Functions
1 . For Model UTD1000CL, there is only FFT
operation available, refer to following displayed
menu :
To execute FFT operation, do the following:
1. Press MATH to open math menu;
2. Press F1 to turn on FFT operation.

Table 6-19
Function menu Settings Description
On
Turn on/off FFT function.
FFT
Off
CH1 is the default channel
Source
CH1
for FFT operation.
Hanning Set to Hanning window.
Hamming Set to Hamming window.
Window
Blackman Set to Blaclman window.
Set to Rectangle window.
Rectangle
Linear To set vertical unit to linear
Vertical Unit
dBV
or dBV

Figure 6-30 UTD1000CL FFT Operation

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2 . For Model UTD1000DL , both FFT and
MATH functions are offered :
Math Operation: It is to execute simple
( + , - , × , ÷ ) math operations on CH1 and
CH2 waveforms .
To perform Math or FFT operation, do the
following:
1. Press MATH to turn on mathematic menu ;
2. Press F1 to Set Type to Math
3. Press F1 again to switch to FFT type ;
Figure 6-32 UTD1000DL FFT Operation

92

Figure 6-31 UTD1000DL MATH Operation

UTD1000L User Manual

Set up Math and FFT menus as follows:
Table 6-20
Settings
Type
-----

OFF
Source 1
Math
Operator

Source 2
Source
FFT

Window

Vertical Unit

CH1
CH2

Description
Turn off MATH function
Set CH1 as Source 1 of Math operation
Set CH2 as Source 1 of Math operation

+
-
×
÷
CH1
CH2
CH1
CH2
Hanning
Hamming
Blackman
Rectangle

Source1+Source 2
Source 1-Source 2
Source 1×
Source 2
Source 1÷
Source 2
Set CH1 as Source 2 of Math operation
Set CH2 as Source 2 of Math operation
Set the source to CH1
Set the source to CH2
Set to Hanning window
Set to Hamming window
Set to Blackman window
Set to Rectangle window

Linear
dBV

To set vertical unit to linear or dBV
93

UTD1000L User Manual

FFT Spectrum Analysis
FFT (Fast Fourier Transform algorithm) mode can
convert time domain (YT) into Frequency domain
for signal waveform graph, which helps to easily
observe signals of following kinds:
? Harmonic component and distortion in the
measurement system .
? Characterize noises in DC source
? Analyze the virbration
FFT Operation Tips
Signals with DC components or bias may cause
error or deviation to FFT waveform components. In
order to reduce DC component, you can set
coupling to AC mode. And you can set ACQUIRE
type to AVG to lower down random noise or mixed
overlapped frequency component in repetitive or
single pulse event.

94

Select FFT Window
S uppose YT waveforms repeats constantly and the
Oscilloscope then performs FFT on limited length
record. When the period numers are integer, YT
waveform at the start and finish points share same
amplitude values and will not cause any
interruption to the waveform. If it is non-integral,
the start and finish amplitude are different, and
high-frequency transient interruption will happen at
joint points, which is called leakage in frequency
domain. To avoid the leakage, FFT mode will
multiply original waveform with one window
function to force the start and finish values all go to
0. Refer to following windows for details:

UTD1000L User Manual
Table 6-21
Best Applications

Features
Compared with rectangle type, it has
better amplitude accuracy and less
so for frequency resolution.

Used to measure sine, periodic and narrowband
random noises.

Hamming

Frequency resolution for Hamming is
a little better than that of Hanning.

Used to measure transient or short pulse; and for
signals whose signal levels before and after
the event are greatly different.

Blackman

Offers best amplitude accuracy and
worst for the frequency resolution.

Mainly for measuring single frequency signals and
looking for higher order harmonics

Rectangle

Offer best frequency resolution, but
worst for the amplitude accuracy. No
big change before and after adding
window function.

Applicable for measuring transient or short pulse,
the signal levels before and after the event are
approximately equal. And also for measuring equalamplitude sinewave with very close frequencies,
broadband random noise with relatively slow
changing spectrum.

FFT Window
Hanning

Term Explanation
FFT Resolution: defined as Quotient between sample rate and operation points. When operation points are
fixed, the lower sample rate is, the better FFT resolution will be.
NYQUIST Frequency: For waveforms with highest frequency f, it at least needs to apply 2f sample rate in order
to recreate original waveform. It is called NYQUIST principle ,f is NYQUIST frequency and 2f is NYQUIST
sample rate.

95

UTD1000L User Manual

Autoset
Autoset is used to simplify the operations. Press
AUTO button and then the Oscilloscope will
automatically adjust vertical factor and timebase
range based on the waveform amplitude and
frequency until the waveform displays steadily on
the screen. System settings for Autoset function
are shown in the following table:

96

Table 6-22
Functions
Acquire Mode
Display Type
SEC/DIV
VOLT/DIV
Trigger Type
Trigger Level
Trigger coupling
Trigger Slope
Trigger Mode

Settings
Normal Sample
YT
Adjust based on signal frequency
Adjust based on signal amplitude
Edge
central point of signal
DC
Rise
Auto

UTD1000L User Manual

Chapter 7 Troubleshooting
The Oscilloscope cannot power on :
The battery may run out. Try to power on the
Oscilloscope again with use of the power adaptor.
If the instrument still doesn ' t work, please contact
UNI-T for the service.

The Oscilloscope turns off a few
seconds later after powered on:
The battery may run out. Check if the low battery
indicator appears on the screen. If it does, please
recharge it.

Measuring voltage amplitude is 10
times larger or smaller than exact
value :
Make sure channel attenuation factor is
consistent with probe factor on the applied
probe.

No waveform displays after acquiring
signals:

1. Make sure the probe is properly connected to
the connection wire .
2. Make sure the connection wire is correctly
attached to BNC ( channel connector )
3. Make sure the probe is properly connected to the
tested object.
4. Make sure t here are signals generated from the
tested object ( you can connect the channel
that can produce signals to the suspected
channel and verify the cause)
5. Restart the acquisition

The waveform does not display
steadily:
1. Check if trigger source that has been set up in
trigger menu is the same with actual input
channel
2. Check trigger type : Edge type is generally
selected for common signals , use video trigger
type for video signals. Onlywhen proper trigger
97

UTD1000L User Manual

type has been set up can the waveform display
steady.
3. Try to change Coupling to HF Reject to filter out
the high-frequency inteference noise in the
signal.

There is no display after pressing
down RUN/ STOP button:
1 . Check if Trigger Mode in trigger menu is
Normal or Single and trigger level has gone
beyond waveform ranges. If they are, set trigger
level to the middle or set trigger Mode to
AUTO
2. Or you can press AUTO to automatically finish
the setup mentioned above .

The display slows down after having
applied AVG mode for a while:
1. If AVG number go above 32times, it is normal for
the oscilloscopes to display at a relatively low
rate.
98

2. Reduce AVG number

The waveform display has a stairstepping shape:
1. It is normal situation, it may be caused by lower
horizontal timebase, increasing the timebase
can improve the horizontal resolution and the
display
2. If display type is VECTOR ,links between sample
points could probably result in stair-stepping
shape. Change display type to Dots can solve
the problem.

UTD1000L User Manual

Chapter 8 Service and Support
Updating Program
Contact UNI-T or log into our website to obtain
the latest program package, unzip the package and
apply the Oscilloscope program update system to
update the Oscilloscope so as to ensure your
oscilloscope has the latest version of firmware
issued already by UNI-T

Preparation before Update
1. Turn on your oscilloscope, press CONFIGURE
button and select system information option so
as to obtain details about the Oscillosocpe
model, hardware version, software version, etc.
2. Make sure the program package you get from
UNI - T company or website has the same
model number and hardware version with the
Oscilloscope to be upd ated. The version should
be higher than the current version.
Update Conditions
1.The update program must have the same product
model with that of your oscilloscope.

2. The update program must be consistent with
your oscilloscope on hardware version
3. The update program version must be higher than
or equal to that of your oscilloscope.

Program Update
1. Properly install the Oscilloscope software into
your PC as instructed in communication
software users manual
2.Copy the program package(extension is . upp )
into PC. You can download from UNI-T website
and contact UNI-T company directly to get the
package.
3.Connect the Oscil loscope to PC with USB cable,
then click to run the software, choose
corresponding oscilloscope model and click
?ENTER?in pop-up interface, the software
interface will appear. Click ?Connect?button
on the interface to begin communication
between PC and the Oscilloscope. With this
connection finished, there will be an indication
that USB has been connected successfully.
99

UTD1000L User Manual

Figure 8-1 Connect to PC
4. Choose from the software menu?Action? ->
?Program Update?, then select the copied
program package on dialogue box and confirm OK.
The Oscilloscope then begins the update and
reads "The Oscilloscope is preparing the update,
please wait....."

1 00

Figure 8-2 Program Update
5. The Oscilloscope will read "
update has
succeeded!" the screen after the update has
on
finished . Do not do any operation on the
Oscilloscope at the moment , please repower it on
to complete the program update.

UTD1000L User Manual

Notes:
1. When the program package doesn' adapt to the Oscilloscope, PC reads " update file is incorrect , please
t
the

check! , then the Oscilloscope then stops the update and keeps the previous program version
"
unchanged .
2. If the Oscilloscope was disconnected to PC or powered off or PC has been shut down during update , the

update would stop and leave the previous program unchanged .

1 01

UTD1000L User Manual

Chapter 9 Appendixes
Appendix A: Technical Specifications
Unless otherwisef specified, the technical specifications are all applicable for 10× probe and
UTD1025L Oscilloscope . First of all , the Oscilloscope must satisfy two following conditions in order
to mee those specifications :
? The Oscilloscope must run continuously for more than 30 minutes in regulated working temperature.
? Users have to execute "self-calibration"procedure in UTILITY menu if operating temperature is 5? or
above higher than specified range . All specifications are warranted except items marked with
"Typical"
Technical Specifications:
Oscilloscope
Acquisition mode
Real - time acquisition
Acquisition mode
UTD1025CL UTD1050CL 200MS/s
Acquisition rate
UTD1025DL UTD 1050DL 250 MS /
s
Acquisition , Peak Detect, AVG, Fast Acquisition (UTD1000DL )
Acquisition
AVG value

1 02

All channels can acquire simultaneously up to N times, N can be selected from 2, 4 ,
8 , 16 ,32 64 128 and 256 .
,,

UTD1000L User Manual

Input
Input Coupling
Input Impedance
Probe Attenuation Factor
Max.Input Voltage
Interchannel Delay (typical )

300V(DC+AC Peak , 1M ? Input Impedance)
?
50ps

Horizontal
Waveform Interpolation
Record Length
Memory Depth

sin(x)/x
UTD1000CL : 1.5M ,UTD 1000DL :
3M
12K

Max.Input Voltage

UTD1025CL UTD1025DL :10ns/div-50s/div

Sample Rate and Delay .
Accuracy
Interval Time(? ÷
Measuring Accuracy
(Full BW )

DC?AC?GND
1? ? ?,21?
2%
3PF in parallel ;
1X,10X,100X,1000X

UTD1050CL UTD1050DL : 5 ns /
div 50 s div Stepping in 1-2-5
-
/
?
50ppm( (any time interval >=1ms)
SINGLE : ? ( sampling interval time + ppm Xreadings +0 . ns )
1
50
6
>16AVGs : ? ( sampling interval time ?100ppmX readings?0 4ns)
1
.

1 03

UTD1000L User Manual
Vertical
A/D Converter(A/D )
Vertical Scale(V/div )
Offset Ranges
Analog Bandwidth
LF Response
AC -
Coupled ,-dB )
3
(
Rise Time
DC Gain Accuracy

DC Measurement
Accuracy(AVG mode)

Voltage Differnce( ? ÷
)
Measuring Accuracy (AVG
Mode )
1 04

8-bit resolution
5mV/div~20V/div (at BNC ) )
ort
5mV/div~100mV/div : ?
1.2V;200mV/div~1V/div : ? ;
24V
2V/div~20V/div : ?
240V;
UTD1025CL UTD1025DL : 25MHz; UTD1050CL UTD1050DL : 50 MHz

<=10Hz(at BNC)
UTD1025CL UTD1025DL : <=14ns ; UTD1050CL UTD1050DL :<=7ns
For vertial Sensitivity 5mV/div : 4% (Normal or AVG )
?
vertial Sensitivity from 10mV/div~20V/div : 3% ( Normal or AVG )
?
Where vertical offset equals zero and N>=16:
?4%×
Readings+ 0.1div+1 mV and select 5mV/div ;
(
)
?3%×
Readings+0.1div+1mV) and select 10mV/div~20V/div;
(
?3%×Readings+0.1div+1mV)and select bewteen 10mV/div~20V/div.
(
Where vertival offset does not equal to zero and N>=16:
?3%×Readings +Vertical offset value )+( ×
1% Vertical offset Value )]+ div )
0.2
[
(
Add 2mV if setting between 5mV/div to 200mV/div; Add 50mV if settings
from 200mV/ to 20V / .
div
div
Under same settings and ambient conditions, calculate voltage difference(?V)
between any two points just after capturing >=16 wavforms and working out
average values. Equation:?3%×
readings+0.05div)
(

UTD1000L User Manual

Trigger
Trigger Sensitivity
Trigger Level Range
Pre-Trigger
Hold-Off Range
Edge Trigger
Edge Type
Pulse Width Trigger
Trigger Mode
Pulse Width Range
Video Trigger
Trigger Sensitivity
(Video ,typical )
Video Format and
Line/Field Frequency
Slope Trigger
Trigger Conditions
Slew Rate

<=1div
?
10div from screen center point
Normal/Sweep Mode, Pre-trigger/Delay Trigger, Pre-trigger Depth Adjustable
100ns - 1.5s
Rise , fall
<, )
>
Negative Pulse Width
(> , = Positive Pulse Width , ( <,= , )
20ns-10s

,

2divs Peak-to-Peak Value
Support standard NTSC and PAL , line numbers from 1~525 (
NTSC )
and
1~625 (PAL )
<, > ,
=
40pV/ ? s~1.6kV/ ? s

1 05

UTD1000L User Manual
Measurements
Cursor

Manual Mode
Auto Mode

Auto Measurements

Customized Parameter Measurement
Mathematics
Storage
Waveform Recording
FFT
NYQUIST Pattern
(UTD1000DL )

Window
Sample Points
Phase Difference

Cu rs o r Vo l ta ge Di ff ere n c e(? V ), Cu rs or Ti m e D iff er en c e( ? T),
? T rec i p roc a l (Hz ) (1/ ? T)
Cursor allowed to display in auto mode
UTD1000CL: Peak -to -
Peak ,
Amplitude Max, Min,Top Point,
,
Bottom Point, Middle, AVG , RMS ,Overshoot, Preshoot,
Frequency,period ,
Rise Time, Fall Time, Positive &
Negative Pulse
Width , Positive & Negative Duty Cycle ,total 19 types ;
UTD 1000DL : apartfrom 19 types ,the model offer another
three parameters : Rise Delay ,Fall Delay ,
Phase .
Up to 4 types at a time
UTD1000CL : FFT ; UTD1000DL :
Math and FFT
Screens: 10sets ; Waveforms: 20 sets, Settings:20 types,
Store 5 sets of waveform records. UTD1000CL: recording 300
screens ; UTD1000DL :recording 150 screens
Hanning,Hamming,Biackman,Rectangular
1024 points
?
3degrees

Multimeter
The specified accuracy is valid over the temperature range 18? to 28?
1 06

Add 10 % of specified accuracy for each degree C below 18? or above 28?

UTD1000L User Manual

DC Voltage:
Input Impedance : 10M ?
Max.Input Voltage: DC400V ?
Range
400.0mV
4.000V
40.00V
400.0V

Resolution
0.1mv
1mv
1 0 mv
100mv

Accuracy
?(1%+5 digits)

AC Voltage:
Input Impedance: 10M?
Max.Input Voltage: 400V AC RMS
Frequency Range : 40Hz ~ 400Hz.
Display: RMS of sinewave
Range
400.0mV
4.000V
40.00V
400.0V

Accuracy
Resolution
0.1mv
1mv
?(1.2%+5 digits)
1 0 mv
100mv

UTD1000CL DC Current :
Max. Input DC Current : DC10A
Range
Accuracy
Resolution
?(1.2%+5 digits)
0.1 ? A
350.0?A
10 ? A
40.00mA
?(1%+5 digits)
0.1mA
400 . 0mA
10.00A
Measure with UT-M07
?(1.5%+5 digits)
10mA
(10A current divider
module)
UTD1000CL AC Current
Max.Input AC Current: AC 10A RMS
Frequency Range : 40Hz ? 400Hz
Range
Accuracy
Resolution
?(2%+5 digits)
0.1 ? A
350.0?A
10 ? A
40.00mA
?(1.5%+5 digits)
0.1mA
400 . 0mA
10.00A
Measure with UT-M07
(10A current divider
module)

10mA

?(2.5%+5 digits)
1 07

UTD1000L User Manual

UTD1000DL DC Current :
Max. Input DC Current: DC4A
Range
999.9?A
Measure with UT-M10

Resolution
0.1 ? A

Accuracy
?1.2%+5digits)
(

(mA current module )
40.00mA
Measure with UT-M10
(mA current module )
400.0mA
Measure with UT-M10
(mA current module )

10 ? A
?1%+5digits)
(
0.1mA

4.00A
Measure with UT-M04
(4A current divider
module)

1 08

10 m A

?1.5%+5digits)
(

UTD1000DL AC Current
Max.Input AC Current: AC 4A RMS
Frequency Range : 40Hz ? 400Hz .
Range
Accuracy
Resolution
999.9?A
Measure with UT-M10
?2%+5digits)
0.1 ? A
(
mA current module )
(
40.00mA
Measure with UT-M10
(mA current module )
400.0mA
Measure with UT-M10
(mA current module )

10 ? A
?1.5%+5digits)
(
0.1mA

4.00A
Measure with UT-M04
(4A current divider
module)

10 m A

?2.5%+5digits)
(

UTD1000L User Manual

Resistance value for good circuit continuity:<=70 ?,

Resistance
Range

Resolution
0.1 ?
1?
10 ?
10 0 ?
1k ?
10k?

400.0 ?
4.000k ?
40.00k ?
400.0k ?
4.000M ?
40.00M ?
Capacitance
Range
Resolution
10pF
51.20nF
100pF
512.0nF
1nF
5.120uF
10nF
51.20 ? F
1?F
100 ? F

Accuracy

?(1.2%+5 digits)

?(1.5%+5 digits)
Accuracy

?3%+5digits)
(

Diode:
Voltage Readout: 0V~1.5V
Continuity Test:
Resistance value for discontinuity: >75 ?, the
beeper doesn ' sound ;
t

continuous beeping;
Display
3.5inch, TFT LCD
Displat Type
320Horizontal ×
RGB×
240
Display Resolution
Vertical pixels
Color/Black &amp; White
Display Color
Waveform Display Horizontal: 12div, 25dot/div ;
Zone
Vertical: 8div ,25 dot div ;
/
Backlight
Adjustable
Brightness
Backlight Intensity 300nit
Language
Multilingual
Interface
UTD1000CL: -
UT M07(10A current
divider module), pcs one USBcable ;
1
;
Standard UTD1000DL UT M04 4A current divider
:-
(
module), 1pcs, one UT-M10(mA current
module), 1pcs;
USB cable , pcs
1
Optional
----
1 09

UTD1000L User Manual

Power Adaptor
Mains Voltage
Output Voltage
Output Voltage

100~220 V AC rms,45~440Hz
9 VDC
4A

Battery :7.4 V ,
3600mA rechargeable lithium
batter;UTD1000CL : hour battery life
8-
UTD1000DL :6 -
hour battery life ;
Environment
Temperature
Cooling Method
Humidity
Altitude

1 10

Operating: 0? ~+ 40?
Non-operation: -20?~+60?
Naturally cooled down
+35?:<=90%
+35?~+40?:<=60%
Operating:3,
000m
Naturally cooled down 1 5,000m

Mechanic specifications
Dimensions
199mm×118mm×49mm
(Reference Data )
0.9kg
Weight
Packing not included
Packing Included
2.3kg
( Net Weight )
IP Degree
IP2X
Calibration Period
one time for each year

UTD1000L User Manual

Appendix B Maintenance
1.General Service
Do not store or place the Oscilloscope in places
that may get its LCD exposed to direct sunshine for
a long time. Do not let spray agent, liquid and
solvent stick onto the Oscilloscope or probe so as
to avoid any damage to the Oscilloscope or probe
Cleaning
Check the Oscilloscope and its probe as actual
operation requires. Clean the Oscilloscope surface
as follows:
1. Clean dust on the Oscilloscope and probe
surface with soft cloth. Avoid any scratch to
LCD transparent protective layer.
2. Clean with soft cloth damped with water or mild
agent, no water drop is allowed to occur. Do not
use any corrosives or abrasives. Disconnect the
power supply before cleaning.
Warning: To avoid any short circuit or even
personal injury resulted from residual water, please

make sure the Oscilloscope is totally dry before
powering it on
2. Storing the Oscilloscope
To store the Oscilloscope for a long term, you
need to charge the batteries before storing it.
3. Charging Batteries
The battery may not be fully charged during
the delivery, it must take four hours to fully charge
the battery. The battery can work for 8hours after
full charge.
When powered by the battery, the Oscilloscope
indicates battery working status on the upper part
of screen.battery indicator s may include:
And
con means there is only five
minutes left before the Oscilloscope powers off.
Please connect the power adaptor to the

Oscilloscope if you want to charge the battery
and use the Oscillosocpe at the same time

1 11

UTD1000L User Manual

Caution:
To avoid over-heating when charging the
battery, environment temperature shouldn '
t
exceed allowable rated value(0? ~+ 40?).
Note:
There is no danger involved even the
Oscilloscope has been connected to the charger
for a long time, for instance, during the whole
weekend, for the Oscilloscope can automatically
switch into very slow charging status.
Replacing Lithium Batttery Pack
The battery pack doesn' need the replacement
t
under general circumstances. If necessary , please
have the battery pack replaced by qualified
personnel and use new battery with the same
specifications.

1 12

UTD1000L User Manual

This user manual may be revised without prior notice.
1 13

UTD1000L User Manual

Copyright 2011 UNI-Trend Group Limited.
All rights reserved.
Address:
Rm 901, 9/F, Nanyang Plaza, 57 Hung To Road,
Kwun Tong, Kowloon, Hong Kong
Phone:(852) 2950 9168
Fax:(852) 2950 9303
Email:info@uni-trend.com
Website:www.uni-trend.com
Manufacturer: UNI-T Technology (Chengdu) Co.,
Ltd Add:
2F, Building D2, No.199, West District Avenue,
West High-tech
District, Chengdu City, Sichuan Province,
P.R.China

1 14


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