User Manual
Contents
1.2. 8400bps 8 data bits 1 stop bit no parity no flow control and prepare it for file receiving 2 Adjust captured waveform so that the interested portion is displayed on screen 3 Enter MENU and execute SEND SCREEN You will see screen as shown in photo at right 4 You can either start sending by first pressing HOLD button then enabling PC receiving Or you can first enable PC receiving then press HOLD to start sending We recommend you use the former sequence because it usually results in shorter wait time Change Record Length waveform buffer size Press MENU scroll to RECALL WAVEFORM and press HOLD Follow screen instructions to select record length desired Change Trigger Position Pre trig Length Trig position is where the trig point is over the whole waveform buffer see figure below You may like to set trig position closer to buffer start or to buffer end Channel Configuration DSO 094 can be set to display two channels or one channel only by the Channel Configuration Switch at top left corner of panel When it is set to one channel only the not selected channel is not displayed However its signal is still captured Built in Test Signal The built in test signal is a square wave signal with fixed frequency of 1KHz and amplitude of about 1V peak to peak Maintenance Battery Running Time DSO 094 uses one 3 7V 1200mAh Li ion battery When fully charged it can last about 4 hours If LCD backlight is turne
3. Ch 1 becomes Y a j Bring up Function Menu Pressing MENU Use menu to switch modes save recall waveforms etc channel as and Ch 2 becomes X see photo at right trigger source LCD backlight ON OFF Holding ALT X Pos MENU a Fast adjustment ON OFF Pressing ALT at When vertical position Ch 1 amp Ch 2 horizontal position specific cussor or trigger level is highlighted selected pressing ALT will Menu is used to switch modes and perform special functions Press MENU botton to enter menu ieee sun on Fast Adjustment whichancreasos the adjustment and press HOLD to execute selected item Press MENU to exit incremental to 5 or 25 for H position from default value 1 Persistent display ON OFF Pressing ALT when Menu Function Summary cursor is at Timebase Item F nctions IMPORTANT Clear waveforms Holding S DIV Clearing the whole waveform buffer as well as display DSO Y T Select Y T mode Maximun allowed input voltages Ch 1 OV level alignment Holding CH 1 Aligning OV level of Ch 1 to its position indicator DSO Y X Select Y X mode are 50 Vpk for 1X probe and 400V pk for 10X prob Ch 2 OV level alignment Holding CH 2 Aligning OV level of Ch 2 to its position indicator SAVE WAVEFORM Save captured waveform to EEPROM O probe RECALL WAVEFORM Recall saved waveforms 4 About Rolling Display Mode SEND SCREEN Send screen to PC as bitmap file l WARNINGS When Timebase is set to 0 1s Div or slower DSO 094 enters Rolling Display Mode
4. In CHANCE RED DEN Oiane e con ene ERAN rori bullet atze i this mode traces shift rolling from right to left across screen to display slow signals CHANGE TRIG POS Change trig position pre trig buffer size DO NOT ATTEMPT TO USE THE 5 Calibration of 10X ordie CHANGE TRIG SEN Change trigger sensitivity DEVICE TO MEASURE LIVE i l RESTORE DEFAULT Restore settings to factory default LINE VOLTAGE DIRECTLY1 Please refer to the technical note How to Calibrate 10X Probe www jyetech com REBOOT Reboot the oscilloscope enter bootloader Support HowToCalibrate10xProbe pdf for details DN094 02v01 2012 05 Advanced Operations Set up USB Connection To use USB connection PC driver for CP2102 needs to be installed The driver can be downloaded at www silabs com products mcu pages usbtouartbridgevcpdrivers aspx Windows driver is also available at www jyetech com Support Drivers amp Tools php Save Captured Waveform Press MENU scroll to SAVE WAVEFORM and press HOLD Follow screen instructions to save waveform to selected buffer Recall Saved Waveform Press MENU scroll to RECALL WAVEFORM and press HOLD Follow screen instructions to recall saved waveform from selected buffer Recalled wave form is displayed under HOLD state Send Screen as Bitmap File 1 Connect USB cable Runa PC application that can handle XModem Protocol Windows HyperTerminal for example Set communication format to 3
5. Two channel Oscilloscope DSO 094 User Manual _ rev o2 Applicable Model 09401 Basic Operations 1 Powering ON OFF the Device First Time Powering UP Battery was disconnected for transportation reason You need to connect it before powering the device up Please follow the steps below to connect battery Panel amp Connectors Push power ON Hold power OFF Channel config 1 Unscrew the two screws at back cover Remove back cover Test Signal n cH 1a2 ee Turn adjustment 2 Battery was attached to the inner side of back cover Insert its 3 1Vpp 1KHz ee ee DAMONA Tooele RUN HOLD connector to the header on PCB marked as BATT at the side of AN Z NS sg CEEE RUN USB connector as shown in the photo at right was FEN e Ch 1 Y Input l Ch 1 Y Sensitiviy amp Position 3 Put back cover back and screw it up Connect battery Ch 1 Couple Menu Select a Time base amp Horizontal position Power On presssii ADJ knob Ch 2 X Input Pam Alternative functions p 8 npu e p 2 CHANNEL OSCILLOSCOPE Trigger Level Slope Source amp Mode Power Off holding down ADJ knob for about 2 3 seconds Ch 2 Couple see P Select Ch 2 X Sensitiviy amp Position 2 Setting Parameters Frequently operated parameters are grouped into four catagories and governed by four buttons E Trigger level indicator Ch 1 se
6. d off it can last longer The Built in Battery Charger The built in charger is programmed to charge battery at current about 100m lt A It requires about 16 hours to fully charge a completely discharged battery To charge battery connect the USB port to PC or power adapter with USB connector The battery sign at top will blink indicating charging is under going Powered From USB When connectting the device to USB good quality cable is strongly recommended Bad cable could create too much voltage drop and consequently the device may not be able to work properly Firmware Upgrade From time to time firmware may need to be upgraded for new functions or improved performance This can be done by the built in bootloader For how the bootloader works and how to use it please refer to www jyetech com Products LedScope e094 php Hint The reboot function under Menu is a quick way to enter the bootloader lt __ Pre trig Length gt LT _ _____ _ Buffer Size ______________ In DSO 094 trig position is represented as percentage of buffer size To change it press MENU scroll to CHANGE TRIG POS and press HOLD depending on which portion of waveforms you are more interested Trig position Change Trigger Sensitivity Trig sensitivity is the minimum level difference required to produce trigs In DSO 094 this is expressed as number of one t
7. enth of major screen division size To change it press MENU scroll to CHANGE TRIG SEN and press HOLD The adjustable range is 2 40 0 2 4 division Default value is 4 Restore Factory Default Settings Press MENU scroll to RESTORE DEFAULT and press HOLD Default values are listed in the table at next page Specifications Parameter Ranges and Defaults Number of Channel 2 Parameter Range Default Max Sampling Rate 50MSa s Time base 10M div 0 2us div lms div Analog Bandwidth 0 10MHz H Position 0 Rec Len 100 O Max Sensitivity 10mV div Ch 1 Sen 2V div 10mV div 10mV div Max Input Voltage 50Vpk 1X probe 400Vpk 10X probe Ch 1 Couple DC AC GND Input Impedance 1M ohm 20pF Ch 1 V Pos 127 127 10 Resolution 8 bits Ch 2 Sen 2V div 10OmV div 10mV div Max Record Length 8000 points Ch 2 Couple DC AC GND Fastest Time Base 0 2us div Ch 2 V Pos 127 127 10 Trigger Modes Auto Normal Single Trigger Mode Auto Normal Single Auto Trigger Position 0 100 Trigger Slope Falling Rising Falling Num of Waveform Mem 4 up to full record lenght Trigger Level 127 127 0 Screen Size 128 X 64 Trigger Src Ch 1 Ch2 Ch 1 Power Supply Battery USB Trigger Pos 0 100 50 Current Consumption 300mA with LCD backlight on Trigger Sen 2 40 4 Dimension 140 x 70 x 30mm Record Length 500 8000 points 1000 Weight 190g Working Mode Y T Y X Y T
8. nsitivity respectively as listed in the table below When a parameter is selected the corresponding est Signa vo ae eye A LV pp 1KHz Ch1 couple amp position indicator is highlighted Turning ADJ knob will change the parameter V Pos Ch 2 sensitivity Catagory Parameters Selecting Button Adjustment Remarks couple amp position Ch1 y Sensitivity CH 1 Turning Couple is directly set by slide switch at DE Vertical y Position ADJ the left side of panel and not controlled a Time base amp H Position y Couple by CH 1 button Pos Trigger level Ch2 y Sensitivity CH 2 Turning Couple is directly set by slide switch at slope amp source Vertical y Position ADJ the left side of panel and not controlled Ch 1 Y Input y Couple by CH 1 button Trigger mode S Ch2 X Input No connection Trig Point Displayed portion Horizontal y Time Dase S DIV pi USB Connector Indicator of capture buffer y Position Trigger y Level TRIGGER Turning yY Slope ADJ Modes amp Menu y Source y Mode Y X Mode Screen Y T Mode 3 Special Functions Pa os This is the most commonly used mode that The table below lists some frequently used special functions and related button actions displays signal to time relationship Y Pos X Pos ETEN TEE Exnlantiois Y X Mode Sampling Toggle HOLD RUN state Pressing HOLD Freezing waveforms for static veiwing This mode can be used to graph relationships Rate between two signals In this mode
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