Preface 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 Contents 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 ......................
UTD1000L User Manual Item Page Describing the Display...................................................... Resetting the Oscilloscope.............................................. Using Functional Menus.................................................. Hiding Menus ........................................................................ Making Connections for Probe Compensation .... ............... ... Compensating the Probe..............................................................
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 .........
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 ..
UTD1000L User Manual Item Page Setting Horizontal System.................................................... Changing Timebase .............................................................. Moving Waveforms Horizontally............................................. Zooming in / out Waveforms ................................................ Adjusting Trigger Hold - Off................................................... Setting Trigger System ........................................................
UTD1000L User Manual Item Page Recording ............................................................................. 80 Storage................................................................................ 83 Recalling .............................................................................. 84 Making Cursor Measurements .............................................. 86 Interface Setup .................................................................... 88 Utility Setup .........................
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 .
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.
UTD1000L User Manual General 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.
UTD1000L 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.
UTD1000L 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.
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.
UTD1000L 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.
UTD1000L 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.
UTD1000L 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 .
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 .
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.
UTD1000L 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.
UTD1000L User Manual Chapter 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 .
UTD1000L 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.
UTD1000L User Manual Resetting 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.
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 .
UTD1000L 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.
UTD1000L 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 .
UTD1000L User Manual Horizontal System Press down s～ns buttons to change the timebase, and the timebase readout in status bar will vary accordingly.
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.
UTD1000L 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 .
UTD1000L 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.
UTD1000L 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 .
UTD1000L 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 .
UTD1000L User Manual 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.
UTD1000L 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.
UTD1000L 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.
UTD1000L User Manual 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 .
UTD1000L 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.
UTD1000L 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.
UTD1000L User Manual 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.
UTD1000L 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.
UTD1000L User Manual 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.
UTD1000L 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 33
UTD1000L 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.
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.
UTD1000L User Manual 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/Ω ). 3 .
UTD1000L 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/Ω). 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 .
UTD1000L 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/Ω). 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 .
UTD1000L 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/Ω). 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.
UTD1000L 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 μA / 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.
UTD1000L 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 μA . You can use F3 button to select between μA , mA and A ranges , the default is μA . 2 . Plug test lead connectors into input terminals (Black to COM and Red to μA / mA ) 3 . Connect test leads to tested points , then take the AC current reading .
UTD1000L 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 μA / mA , then 42 insert black and red test leads properly into the module 4 .
UTD1000L 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 μA , you can use F3 to toggle between μA , mA and A ranges , the default is mA 2. Plug mA current module (UT-M10) into input terminals COM and V/Ω , 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 .
UTD1000L 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/Ω, 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 .
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/Ω, 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 .
UTD1000L User Manual 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/Ω , then insert test leads properly into the module. 4. Connect test leads to tested points, then take DC current reading.
UTD1000L 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 μA . You can use F3 button to select between μA , mA and A ranges , the default is μA . 2 . Plug mA current module (UT-M10 ) properly into input terminals COM and V/Ω , then turn the switch on the module to uA range . 3 .
UTD1000L 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/Ω , 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.
UTD1000L 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/Ω, 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.
UTD1000L 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/Ω , then insert Black and Red test leads correspondingly into the module. 5. Connect test leads to tested points, then take the AC current reading.
UTD1000L 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.
UTD1000L User Manual 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.
UTD1000L 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.
UTD1000L User Manual See Channel Menu in Following Table: Table 6- 1A Coupling Wave Display Probe Factor Invert 54 DC AC Ground AC&DC components pass DC component is blocked Display DC level when the channel input terminal is equivalently grounded. On Off 1× 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.
UTD1000L 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.
UTD1000L User Manual 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 .
UTD1000L 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&DC components pass DC component is blocked Display DC level when the channel input terminal is equivalently grounded. Probe Factor Invert 1× 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.
UTD1000L User Manual 58 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. 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.
UTD1000L 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.
UTD1000L 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.
UTD1000L 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.
UTD1000L 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.
UTD1000L 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.
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 &AC components pass DC HF Reject Reject high frequency component at＞80kHz The Oscilloscope Auto automatically acquires data when no trigger signal has been detecte
UTD1000L 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.
UTD1000L 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 .
UTD1000L 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.
UTD1000L User Manual Slope Trigger Trigger occurs only after rise or fall speed rate meets set value.
UTD1000L User Manual Table 6-7 Menu Type Slope Type Qualifier Settings Slope Rise Fall ﹥ ﹤ = Next Slew Rate Threshold Back Low High Low&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.
UTD1000L User Manual 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 .
UTD1000L 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.
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.
UTD1000L 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 .
UTD1000L User Manual 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 .
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.
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 .
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 .
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.
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 roo
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 .
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.
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.
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.
UTD1000L User Manual 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.
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&Rightbuttons to set Location to 1 ; press F3 to select target Source ; ( Only available in UTD1000DL) 5.
UTD1000L User Manual 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.
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 Δt 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 se
UTD1000L User Manual 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 ΔV 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.
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&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.
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.
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.
UTD1000L User Manual 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.
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 CH
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.
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.
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.
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.
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 .
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.
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.
UTD1000L User Manual Notes: 1. When the program package doesn＇t adapt to the Oscilloscope, PC reads “ the update file is incorrect ， please check！” ， then the Oscilloscope then stops the update and keeps the previous program version unchanged ． 2.
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.
UTD1000L User Manual Input Input Coupling Input Impedance Probe Attenuation Factor Max.Input Voltage Interchannel Delay （typical ） 300V（DC＋AC Peak ，、1MΩ 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 .
UTD1000L User Manual Vertical A/D Converter(A/D ） Vertical Scale(V/div ） Offset Ranges Analog Bandwidth LF Response AC 3 dB ） （ －Coupled ，－ 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.
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.
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 Cursor Voltage Difference(ΔV), Cursor Time Difference(ΔT), ΔT reciprocal(Hz)(1/ΔT) 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
UTD1000L User Manual DC Voltage: Input Impedance : 10MΩ 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: 10MΩ 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.
UTD1000L User Manual UTD1000DL DC Current ： Max. Input DC Current： DC4A Range 999.9μA Measure with UT-M10 Resolution 0.1μA 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 ） 10μA ±（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.
UTD1000L User Manual Resistance value for good circuit continuity:≤70 Ω， Resistance Range Resolution 0.1Ω 1Ω 10Ω 10 0 Ω 1kΩ 1 0 kΩ 400.0 Ω 4.000kΩ 40.00kΩ 400.0kΩ 4.000MΩ 40.00MΩ Capacitance Range Resolution 10pF 51.20nF 100pF 512.0nF 1nF 5.120uF 10nF 51.20μF 1μF 100μF Accuracy ±(1.2%＋5 digits) ±(1.5%＋5 digits) Accuracy ±（3%＋5digits) Diode: Voltage Readout: 0V~1.5V Continuity Test: Resistance value for discontinuity: ＞75Ω， the beeper doesn ＇t sound ； continuous beeping； Display 3.
UTD1000L User Manual Power Adaptor Mains Voltage Output Voltage Output Voltage 100~220 V AC rms,45~440Hz 9 VDC 4A Battery ：7.
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.
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＇t need the replacement under general circumstances.
UTD1000L User Manual This user manual may be revised without prior notice.
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.
