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72-9355 72-9360 72-9365 User Manual

1. Check the trigger source setup in the trigger menu See whether it is the same as the actual signal input channel Check the trigger type Use edge trigger for ordinary signals and video trigger for video signals Stable waveform display is achieved only when the correct trigger mode is selected Try changing the coupling display to high frequency suppression or low frequency suppression to filter any high or low frequency noise that 1s interfering with triggering 5 No display after pressing RUN STOP Check if the trigger mode is set to normal or single in the menu and whether the level exceeds the waveform range If so move the level to the centre or set trigger mode to AUTO Press AUTO to complete the setup 6 Display speed is slow after average sampling time is enabled If average sampling is carried out for more than 32 times the display speed will drop This is normal You can reduce the intervals of average sampling J Trapezoidal waveform display This is normal The reason is possibly horizontal time base range is too low You can improve horizontal pixel aspect ratio and enhance the display quality by increasing the horizontal time base Ifthe display type is vector the connection between sampling dots may cause a trapezoidal waveform Set the display type to dot to solve this problem Chapter 5 Service and Support 1 Product Program Upgrade You can obtain the program upgrade pack from our marketing depa
2. F1 to access the user option menu 3 Select the energy save off time with the jog dial 4 Press the jog dial to confirm until the current menu is closed Auto Calibration You can correct measurement errors caused by environmental changes with the auto calibration function This process can be run selectively when necessary To make calibration more accurate power on your oscilloscope and allow 20 minutes to warm up Then press the USER button then F3 and follow the on screen prompt to operate 10 Operating Math Functions Math functions are displays of x and FFT mathematical results of Channel A and Channel B Press MATH then F1 to select FFT x or OFF as the math type The menu is as shown in Table 2 15 Figure 2 15 Math function menu Explanatory Note Math Signal source 1 Signal source 2 Signal source 1 Signal source 2 Signal source 1 x Signal source 2 Signal source 1 Signal source 2 Close the math function OFF B Set signal source 1 as Channel B waveform B Set signal source 2 as Channel B waveform Shift You can shift the math waveform with the jog dial 25 TENMA Press MATH then F1 select FFT as the math type The menu is as shown in Table 2 16 Figure 2 16 FFT function menu Function Menu FFT Hanning Set Hanning window function Hamming Set Hamming window function Blackman Set Blackman window function Rectangle Set Rectangle window function 72 9355 72
3. Ratio of positive pulse width to cycle Negative duty ratio Duty Ratio of negative pulse width to cycle TRIGED Example 2 To display all measurement values of Channel A follow the steps below 12 40m 13 60m 12 40m 1 Press A to select Channel A Re Da a 2 Press SCOPE to access the frequently used function options 300 0 aaah 492 2pVs 3 Press F2 to enter the measurement options 164 4pYs 50 25HHz 19 90ns 4 Press F1 to select all parameters for parameter measurement 6 10ns 5 590ns 10 00ns All measurement parameters will be shown on screen as shown in Figure 2 23 ini Parameter measurement All parameters Return Figure 2 23 All measurement parameters Frequency counter setup Press SCOPE then F4 to activate the frequency counter as shown below Acquisition mode Parameter measurement Display Frequency counter On Figure 2 24 Hardware frequency counter M 5 00ns Figure 2 24 7 Storage Setups and Screen Copy As shown in Figure 2 25 press SAVE to access the storage menu Save Recall Record Off Figure 2 25 Storage menu Figure 2 25 22 TENMA You can save and recall waveforms and setup documents on the oscilloscope s internal memory and any USB device You can also save and recall waveform documents and setup documents on a USB device For setup see the table below 72 9355 72 9360 72 9365 User Manual Table 2 9 Storage menu Explanatory Note See Table 2 10 Save t
4. To prevent personal injuries and damage of this unit or any other devices connected to it please take note of the following safety precautions To avoid potential hazards use this unit strictly as instructed by this User Manual Maintenance should only be carried out by a trained professional To avoid fire and personal injury Use a correct power cable Use only the specified power cable which is suited and authorized in the country of use Remove the plug correctly Do not remove the probe or testing cable when they are connected to live power Ensure good grounding This unit is grounded by the ground wire of the power cable To avoid electric shock the grounding conductor must touch the ground Before connecting the input or output terminal ensure the unit is properly grounded Connect the probe of the digital storage oscilloscope The probe ground cable is the same as ground potential Do not connect the ground cable to high voltage Check the rated values of all terminals To prevent fire and excessive current shock please check all rated values and label data Read the manual carefully and check the rated values before connecting the unit TENMA Do not operate the unit with the chassis cover open or removed Do not operate this unit when the outer cover or front panel is open Use suitable fuses Only use specified fuse types and rated specifications Avoid exposing circuitry When power 1s on never make contact with exposed ada
5. User Manual Return K return Normal Invert Figure 1 4 Adjusting the probe ratio TRIGED Figure 1 4 Connect the probe tip and ground clamp to the output terminal of the function signal generator Select a square wave of 1kHz output frequency and 3Vpp amplitude Press AUTO and you will see a 1kHZ 3Vpp square wave in the display in a few seconds as shown in Figure 1 5 Repeat steps 2 and 3 to check Channel B Input A On Coupling DC Bandwidth limit Full bandwidth Bias Voltage Others Figure 1 5 Square wave signal 10 1 H 200 0 s eOMHz Figure 1 5 4 Probe Compensation When connecting the probe to any input channel for the first time perform this adjustment to match the probe to the channel Skipping the compensation calibration step will result in measurement error or fault Please adjust probe compensation as follows l Set the probe attenuation factor to 10X Move the switch on the probe to 10X and connect the probe to Channel A Connect the probe tip and ground clamp to the output terminal of the function signal generator Select a square wave of 1kHz output frequency and 3Vpp amplitude Rising time of square wave should be 100 us 2 Turn Channel A on then press AUTO 3 Observe the shape of the displayed waveform Overcompensation Correct Compensation Undercompensation Figure 1 6 Probe compensation calibration Figure 1 6 TENMA If you see an Undercompensation or Overcom
6. rising time falling time positive pulse negative pulse positive duty ratio negative duty ratio rise delay fall delay Customized parameter 3 types measurement Math functions he Saving waveforms Internal 10 groups of waveforms and 10 setups USB 10 groups of interfaces 10 groups of waveforms Hanning Hamming Blackman Harris Rectangular Fs Sampling points 1024 points Lissajous Figure Phase difference Display Display type 145mm diagonal line 5 7 LCD panel Display resolution 320 horizontal x 240 vertical pixels Waveform display zone Lateral 12 div 25 dot div Longitudinal 8 div 25 dot div Display contrast Adjustable Backlight Intensity 300 nit Display Languages Simplified Chinese Traditional Chinese English nterface Functions tandard setup x USB Host Optional Digital Multimeter Resistance measurement Range 6000 6kQ 60kQ 600kQ 6MQ 60MQ Precision 60MQ 1 5 3 quantization words Others 1 2 3 quantization words eee eee 600mV 6V 60V 600V 1000V Precision 1 5 quantization words AAA eos 600mV 6V 60V 750V Precision 1 2 5 quantization words DC current measurement Range 6mA 60mA 600mA 6A 10A external module Precision 6mA 600mA 1 5 quantization words 6A 10A 1 2 5 quantization words O 6mA 60mA 600mA 6A 10A external module Precision 2 5 quantization words Capacitance measurement Range 6nF 60nF 600nF 6uF 60uF 600u
7. DC quantities of the input signal H F Suppression Reject low frequency quantities below 80kHz of the signal L F Suppression Reject high frequency quantities above 80kHz of the signal Slew Rate Rise Set to trigger at the signal s rising edge Fall Set to trigger at the signal s falling edge Holdoff 40ns 1 5s Adjust holdoff time Adjusting Hold off Time You can adjust the hold off time to observe complicated waveforms e g pulse string series Hold off time means adjusting the data acquisition cycle of the digital storage oscilloscope It is an exact multiple of the cycle of the complicated waveform being tested thus synchronization is possible For example if the signals being tested are a group of wave signals apply them to Channel A then press TRIGGER to select edge trigger mode Next press F5 to activate hold off adjustment and adjust hold off time with the jog dial Hold off time will change accordingly until waveform display is stable as shown in the figure below TRIG ED Trigger edge Trigger source A Trigger setup Slew rate Rise Hold off Hold off time Figure 2 16 Hold off Rise glips Figure 2 16 Note Hold off time is usually slightly shorter than the large cycle time When observing the RS 232 communication signal it is easier to achieve stable synchronization of hold off time is slightly shorter than the starting edge time of every set of data Pulse Trigger Pulse trigger means determin
8. Note See Table 2 6 o O Parameter See Table 2 7 measurement Display See Table 2 8 OFF Setting the Acquisition Mode As shown in Table 2 6 below press SCOPE then F1 for the acquisition mode menu Table 2 6 Acquisition mode menu Explanatory Note Acquisition mode Sampling Set to standard sampling mode Peak detect Set to peak detect mode Average Set to average sampling and display the average number of times Average number of times Set the average number of times in multiples of 2 1 e 2 4 when average sampling is 8 16 32 64 128 256 To change the average number of selected times use the jog dial Sampling mode Real time Set sampling to real time Equivalent Set sampling to equivalent at a time base range of Sns 100ns div By changing sampling setup you can observe the consequent changes in waveform display For example if the signal contains considerable noise you will see the following displays when average sampling is not selected and when 32 time average sampling is selected For sampling waveform display please see Figure 2 20 and Figure 2 21 19 TENMA Acquisition mode Parameter measurement Display Frequency counter Off Figure 2 20 Waveform without average sampling 72 9355 72 9360 72 9365 User Manual TRIG EO M 5 00n Figure 2 20 Acquisition mode tae Parameter measurement Display Frequency counter Off Figure 2 21 Waveform display when 32 time average sam
9. Table 2 4 Explanatory Note Set video trigger as the trigger type Trigger source A Set A as the signal source trigger signal B Set B as the signal source trigger signal Alternate A and B trigger their individual signals respectively PAL Suitable for PAL video signals NTSC Suitable for NTSC video signals Synchronization All lines Set the TV line to synchronize with trigger Specified lines Set synchronized trigger on the specified line and adjust with the jog dial Odd field Set the video odd field to synchronized trigger Even field Set the video even field to synchronized trigger When PAL is selected for standard format and synchronization mode is specified line you will see a screen display as shown in Figure 2 17 When synchronization mode is odd field you will see a screen display as shown in Figure 2 18 TRIG EO Trigger Video Trigger source A Standard PAL Synchronization Specified line Specified line 28 BOF Figure 2 17 Video trigger line synchronization Line Mum 20 Figure 2 17 Trigger Video Trigger source A Standard PAL Synchronization Odd field Figure 2 18 Video trigger field synchronization TRIG EO PAL Ewen Field Figure 2 18 Alternate Trigger When alternate trigger is selected trigger signals will be present in their individual TRIG ED vertical channels This triggering mode is suitable for observing two signals of uncorrelated signal frequencies as shown in
10. Trouble shooting Chapter 5 Servicing and Support Chapter 6 Appendixes Appendix A Technical Indicators Appendix B Accessories Appendix C Maintenance and Cleaning Appendix D English and Chinese cross reference for the front panel TENMA 72 9355 72 9360 72 9365 User Manual Table of Contents Introduction 72 93xx Series Digital Storage OsSCUlOS COPE a 3 Chapter 1 User AO A A A A A AN 6 1 Gettmo to know your Disital Storage Oscilloscope 2 3 8 td delia 6 2 an A A one en ec O es 8 a Eunctonal Checa a a tas 8 A Probe Compensi onesie e lc 9 AU O E OEO 10 6 Gettine to Know ihe Operation Panel prota sb 10 Chapter 2 IANS PRUE a he cam Shaun Ng aS cra Tn eo ete ae 10 E Resetine the Stunt ele ce ak ae ooh eas o eee han te 11 2 Sino tne TOS Dial PUC dd ve Rainn a 11 iS sl A tac a a edhe bsieta luni bauer sent deele ie heed Male bleu 13 4 FIOTIZOM Al Syste Seti scsu sects tena a aee tan ea shes emetic e a V edu aah tana ce Ek 16 SA CCE SY StGMl Nel p Wea castse cotta di e o one de di 16 6 Display Acquisition Modes and Automatic Measurement 0 cece ccc cece eee e eee e eee eee ee eee eee ee ees 19 TM COLA SSS OS oe cae hn Lael o dn ala a he rl nna un os chase pa ue acai Rca nied hiya Sareea 22 Se Cursor Mea arome M oara a aaa aaa aa aaa a 23 or Wily Funcion Se 1 AA a aaa a a E 25 10 Opera ne Wath FUNCIONS is e 23 Le Wi OWE XLCTNS LOM tada A SA A iS 26 12 Fides TRE Mens e o a ct a e e el o tad Ud 21 ES si
11. get system infomation in detail Figure 5 13 Figure 5 14 9 Ifthe software version of the upgrade document is lower than that of the oscilloscope the prompt in Figure 5 14 will appear Software version of program upgrade pack is lower than that of the oscilloscope Please read the user manual and check the software version in system information under the utility menu You should download a version of upgrade pack which is higher than or same as your oscilloscope software Remove the USB device and reboot Figure 5 14 10 During upgrade if you wish to cancel upgrade after the system has determined that the upgrade pack is correct press F1 to exit the upgrade system The prompt in Figure 5 15 will appear The user has cancelled program upgrade Remove the USB device and reboot Figure 5 15 Welcome you are using USB Update program V3 2 Welcome you are using USB Update program 3 2 Please waitting for read file 0k Please wartting for read file 0k dre you sure to update F5 Yes Fl NojNo re you sure to update 7 F5 Yes Fl NojYes CATION lt wil cost S 5 minute when updating don t power off jotherwise unknown exception will happen Please wartting for update Faled Eal We are sorry for this case please contact with us Figure 5 15 Figure 5 16 11 If an unknown error occurs when the user is updating the program the prompt in Figure 5 16 will appear Sorry program upgrade has failed Please
12. read the user manual and contact us Remove the USB device and reboot Figure 5 16 Caution If this error message appears during upgrade download a new program upgrade pack and start upgrade all over again Your oscilloscope has to be successfully upgraded to resume normal operation If you cannot upgrade the program and use your oscilloscope normally please read the user manual and contact us for help 2 Warranty Tenma warrants that product produced and marketed by it will be free from defects in materials and workmanship for a period of three 3 years from the date of shipment by the authorized dealer If any such product proves defective during this warranty period Tenma will repair the defective product or provide a replacement in exchange according to detailed provisions of the warranty To request maintenance and repair service or a full copy of the warranty please contact your nearest UNI T sales and maintenance office Save and except the guarantee given herein or in other applicable warranty Tenma makes no other express or implied guarantee including but not limited to any implied guarantee on the product s tradability and suitability for any specific purpose Under no circumstance will UNI T bear any liability for any indirect special or subsequent loss 36 TENMA 72 9355 72 9360 72 9365 User Manual 3 Contact Us If you encounter any inconvenience in using this product contact Tenma directly www tenma co
13. take 30 seconds to 1 minute for the operation screen to appear Abnormality prompts Program upgrade may fail due to various reasons Below are some common causes for upgrade failure and the prompts that help users to upgrade the software program successfully If upgrade fails remove the USB device and restart the oscilloscope The unit will still function normally To repeat the upgrade process again insert the USB device and carry out the steps in Program upgrade above 1 During the upgrade process you can cancel upgrade and exit the upgrade system by pressing F1 as guided by the on screen instructions The prompt shown in Figure 5 6 will appear Remove the USB device and reboot Figure 5 6 2 If the USB device is removed after FS is pressed to continue program upgrade the prompt in Figure 5 7 will appear USB device has been removed Please reboot Figure 5 7 Welcome you are using USB Update program 13 2 Welcome you are using USB Update program Y3 2 1 Please press FS to continue or Fl to cancel Figure 5 7 Figure 5 8 3 During upgrade if the system cannot find the upgrade document in the USB root directory the message in Figure 5 8 will appear Cannot find the valid update file Please ensure the update file is in the USB root directory Remove the USB device and reboot Figure 5 8 4 During upgrade if the document in the USB root directory has been damaged and cannot be read you will see
14. the LX key to adjust the vertical range V div of the oscilloscope you can adjust the signal to a size best suited to screen display By pressing the ac key to adjust the position of the reference waveform reference point you can adjust the signal to the position best suited to screen e The Horizontal System Press the L ll s ns key to change the horizontal time base range setup Range of horizontal scanning rate is 5ns 50s div 72 9360 in steps of 1 2 5 Note Minimum horizontal time base range of the 72 93xxSeries varies from model to model Press the lt key to adjust the horizontal position of the trigger point You can observe more pre trigger information The Trigger System Press TRIGGER to adjust the trigger setup of the waveform For the trigger menu see Figure 1 8 Figure 1 8 Trigger System Setup 40 00ns Figure 1 8 The above operation steps are detailed in the next chapter Chapter 2 Instrument Setups This chapter gives guidance on all oscilloscope functions and multimeter functions of your oscilloscope Also available are detailed instructions for all front panel function keys and examples of menu uses and basic operation steps 10 TENMA 72 9355 72 9360 72 9365 User Manual This chapter will guide you through the following Hiding the menu CLEAR MENU Operation buttons AUTO RUN STOP E Resetting the instrument E The jog dial E A a Setting
15. the screen is maintained for 5 seconds and then refreshed Infinite Waveform on the screen remains on display New data will be added continuously Format Operating mode of the oscilloscope X Y is the display mode A input signal is X signal B input signal is Y signal Definitions Display Type Vector display fills the space between adjacent sample points in the display Dot display shows only the sampling points Refresh rate Refresh rate is the number of times the digital storage oscilloscope refreshes the waveform display per second The refreshing speed affects the capability to observe signal movements speedily X Y Mode This mode can be activated only when Channel A and Channel B are both on After selecting the X Y display mode the horizontal axis will display the A signal while the vertical axis will display the B signal 20 TENMA 72 9355 72 9360 72 9365 User Manual Caution In the normal X Y mode you can adjust waveform amplitude with VOLTS DIV of the two channels Adjusting the s DIV time base will result in a lissajous figure of better display quality The following functions are disabled in the X Y display mode Automatic measurement mode Cursor measurement mode Reference or function waveform Vector display type Trigger control Definitions Y T Mode In this mode the Y axis indicates voltage and the X axis indicates time X Y Mode In this mode the X axis indicates Channel A voltage and the
16. the trigger point You can set trigger functions with the trigger function key TRIGGER Trigger Key for the trigger function setup menu Trigger level Trigger level is set to a signal voltage that matches the trigger point by turning the jog dial Trigger types Edge Video Pulse Edge trigger Trigger is set to occur when the signal is at the rising or falling edge You can set the trigger level to change the trigger point s vertical position on the trigger edge 1 e the intersection point of the trigger level line and the signal edge on the screen Pulse trigger When the pulse width of the trigger signal reaches a preset trigger condition trigger occurs Video trigger Carry out field or line trigger to standard video signals Below are notes for various trigger menus 16 TENMA 72 9355 72 9360 72 9365 User Manual Edge Trigger For edge trigger menu setups please see the table below Explanatory Note Set edge as the trigger type Trigger source A Set Channel A as the signal source trigger signal B Set Channel B as the signal source trigger signal Alternate A and B trigger their individual signals alternately Trigger setup Trigger Waveform is acquired even when no trigger condition is detected mode Acquisition takes place only when trigger condition is met One waveform is acquired when one trigger is detected Acquisition then Stops Allow AC and DC quantities of the input signal to pass Intercept
17. up the vertical system A B L fej l LW D Setting up the horizontal system CEJ rs E Setting up the trigger system TRIGGER E Display acquisition mode and automatic measurement SCOPE E Storage setup and screen backup SAVE E Cursor measurement CURSOR a Utility setup USER E Math function MATH a Zoom function ZOOM Bl E It is recommended that you read this chapter carefully to understand the various measurement functions and system operation steps of your oscilloscope 1 Resetting the Instrument To use factory setup follow the steps below After connecting to power press POWER to turn the oscilloscope on When the power on screen appears press and hold the CLEAR MENU key to select factory setup When setup is done the screen in Figure 2 1 will appear Figure 2 1 Resetting the instrument AUTO Figure 2 1 2 Using the Jog Dial Function The jog dial is a multifunction knob that enables easy operation and control of various menus The example below illustrates the use of this dial 1 Making menu selection with the jog dial a Press SCOPE The menu in the figure below appears at the bottom of the screen Parameter measurement Frequency counter Off Figure 2 2 Making menu selection with the jog dial AUTO Figure 2 2 11 TENMA b Press F3 to select display Enter the display menu shown in the figure below Return K return Off Infinite Vector Dot Figure 2
18. waveform Top value Vtop The voltage value from top to ground GND of the waveform Base value Vbase The voltage value from base to ground GND of the waveform Middle value Vmid Half of the amplitude value Peak to peak value Vpp The voltage value from the highest point to lowest point of the waveform Amplitude value Vamp The voltage value from top to base of the waveform Overshoot The ratio value of the difference between maximum value and top value to the amplitude value Preshoot The ratio value of the difference between minimum value and top value to the amplitude value Average value Average amplitude of signals within 1 cycle Root mean square value Vrms The effective value Energy generated by AC signal conversion during 1 cycle with respect to the DC voltage that produces equivalent energy 1 e root mean square value 72 9355 72 9360 72 9365 User Manual Your oscilloscope can automatically measure the following time parameters Rise Time The time taken by the waveform to rise from 10 to 90 Fall Time The time taken by the waveform to fall from 90 to 10 Positive Pulse Width Width The pulse width when positive pulse is at 50 amplitude Negative Pulse Width Width The pulse width when negative pulse is at 50 amplitude Rising delay Rise Delayed time of the rising edge from A to B Falling delay Fall Delayed time of the falling edge from A to B Positive duty ratio Duty
19. 3 Operating the Type Menu with the jog dial Return K return Off Infinite Vector Dot Figure 2 4 Operating the Continuous Menu with the jog dial Return K return Off Infinite Vector Dot Figure 2 5 Operating the Format AUTO Menu with the jog dial Figure 2 5 72 9355 72 9360 72 9365 User Manual AUTO Figure 2 3 AUTO Display Figure 2 4 c With the jog dial select dot as the display type The selected menu will appear bold Then press the jog dial once to confirm Dot is now selected as the display type and the bold selection indicator on the screen will automatically jump to the continuous menu as shown in Figure 2 4 Turn the jog dial to set continuous mode to 5s then press the jog dial once to confirm The screen will then enter the format menu If you wish to change the format repeat the above steps Otherwise press the jog dial to close this menu as shown in Figure 2 5 Note When operating the menu as shown in Figure 2 4 if the menu selection indicator is at continuous you can press the return key F5 to go back to the previous type menu to reset that page 2 Controlling bias voltage with the jog dial See the Vertical System Setup section for details 12 TENMA 72 9355 72 9360 72 9365 User Manual 3 Shifting trigger level with the jog dial See the Trigger System Setup section on P 16 for details 4 Doing cursor measuremen
20. 9360 72 9365 User Manual B Set B as the math waveform Display the frequency per division f div of the current horizontal 244 1MHz axis 5mV 50V Display the current FFT range and adjust with the jog dial Shift You can shift the math waveform with the jog dial FFT spectrum analysis By using the FFT Fast Fourier Transform algorithm you can convert time domain signals YT into frequency domain signals With FFT you can conveniently observe the following types of signals o Measure the harmonic wave composition and distortion of the system 9 Demonstrate the noise characteristics of the DC power O Analyze oscillation How to operate FFT functions Signals with DC quantities or offset signals will cause error or offset of FFT waveform quantities To reduce DC quantities select AC coupling To reduce random noise and frequency aliasing resulted by repeated or single pulse event set the acquiring mode of your oscilloscope to Average acquisition Select the FFT Window Assuming the YT waveform is constantly repeating itself the oscilloscope will carry out FFT conversion of time record of a limited length When this cycle is a whole number the YT waveform will have the same amplitude at the start and finish There is no waveform interruption However if the YT waveform cycle is not a whole number there will be different amplitudes at the start and finish resulting in transient interruption of high frequency at t
21. F 6mF Precision 6nF 4 10 quantization words 6mF 5 10 quantization words Others 4 10 quantization words Power Source Source Voltage 100 240VACpws 45 440Hz CAT II Power Consumption Less than 20VA DC power supply 72 9355 72 9360 3h 72 9365 2h 39 TENMA 72 9355 72 9360 72 9365 User Manual lt 35 C lt 90 RH lt 5 F 390 RH 35 C 40 C 60 RH 95 F 104 F 60 RH Operating 3 000m Non operating 15 000m Mechanical Specifications Dimension 268 x 168 x 60 mm 1 8kg Oo Gross dg IP Protection IP2X Adjustment frequency Recommended calibration frequency is year Appendix B Accessories Included Standard Accessories O Two 1 2m 1 1 10 1 passive voltage probes For details please read the probe manual EN 61010 031 2002 A1 2008 Rating is 150V CAT II when the switch is in the 1X position Rating is 300V CAT II when the switch is in the 10X position One international standard power cord One User Manual One Product Warranty Card Two current to voltage converter module DC adaptor One multimeter pen Appendix C Maintenance and Cleaning General Care Do not store or leave the oscilloscope where the LCD display will be exposed to direct sunlight for long periods of time Caution To avoid damage to the oscilloscope or probes do not expose them to sprays liquids or solvents Cleaning Inspect the oscilloscope and probes as
22. NMA 72 9355 72 9360 72 9365 User Manual TENMA Introduction 72 9355 72 9360 72 9365 User Manual Dear valued customer Thank you for purchasing this Tenma instrument To use your new product correctly read this User Manual carefully and completely before operation and pay particular attention to Safety Instructions Please keep this User Manual in a safe place after reading it carefully For easy reference during future operation we recommend putting it alongside your Uni Trend product or in an easily accessible place Copyright Information Premier Farnell plc all rights reserved All licensed software products are properties of Uni Trend Technology Dongguan Ltd and its subsidiaries or software providers They are protected by the national copyright law and international conventions Information contained in this manual supercedes all information in previously published versions Tenma is the registered trademark of Premier Farnell plc If this product is sold or assigned by the original purchaser to a third party within three years of purchase the new owner should note that warranty is available for a period of three years from the day the original purchaser acquired the product from an authorized dealer The probes other accessories and fuses are not covered by warranty If any genuine defect is found during the valid warranty period your Tenma dealer has the option to repair the defective product without an
23. Select Others and select inverted polarity as shown in Figure 2 13 TRIGED Return K return Others Normal Figure 2 13 Inversion setup Figure 2 13 Press the jog dial once to confirm then press the jog dial again to close the menu Signal display 1s as shown below 15 TENMA Input A TRIGED On Coupling DC Bandwidth limit Full bandwidth Bias Voltage Others Figure 2 14 Channel polarity setup normal 72 9355 72 9360 72 9365 User Manual Full Figure 2 14 Input A TRIGED On Coupling DC Bandwidth limit Full bandwidth Bias Voltage Others Figure 2 15 Channel polarity setup inverted H 200 0ns Full Figure 2 15 4 Horizontal System Setup Changing the signal time base and horizontal shift Accelerate or decelerate the oscilloscope s scanning rate by pressing from Sns div 50s div 72 9360 Note Minimum horizontal time base range of the 72 93xx Series varies from model to model 5 Trigger System Setup Triggering decides when the oscilloscope collects data and display waveforms Once the trigger is correctly set up it can transform unstable displays into meaningful waveforms When beginning to acquire data the digital storage oscilloscope first collects sufficient data required for drawing a waveform on the left side of the trigger point While waiting for the triggering condition the oscilloscope will continue acquiring sufficient data to draw a waveform on the right side of
24. Y axis indicates Channel B voltage Slow Scanning Mode When horizontal time base control is set at 50ms div or slower the unit will operate in the slow scan sampling mode When observing low frequency signals in slow scanning mode it is advised to set channel coupling to DC S ns A horizontal scaling time base unit If waveform sampling is stopped by pressing the RUN STOP button time base control can expand or compress the waveform Parameter Measurement Setup The notes below help you familiarize with the powerful automatic measurement functions of your digital storage oscilloscope Press SCOPE then F2 to access the parameter measurement menu shown in the following table Table 2 8 Parameter measurement menu Parameter measurement Customized parameter The screen displays only user defined parameters All parameters All 27 parameters are displayed OFF Close the automatic measurement function Customized parameters Parameter 1 Up to 3 parameters can be displayed simultaneously on screen Parameter 2 Parameter 3 Number of parameters Tora 27 Select with the jog dial Channel Display measurement value of Channel A Display measurement value of Channel B Close the automatic measurement display Indicator Parameter 1 This function offers visual indication of the parameter being tested Parameter 2 Parameter 3 Example 1 To display the measurement peak to peak value of Channel A follow the steps below 1 Press A to tur
25. al Ifsn AorC B D 0 is the angle of disparity between the channels For definitions of A B C D see the above figure Calculating with this formula the angle of disparity is 0 arcsin A or 0 arcsin C B D If the elliptic main axis is within quadrants I and III the angle of disparity should be within quadrants I and IV i e inside O 2 or 32 27 2 2 If the main axis is within quadrants Il and IV the angle of disparity should be within quadrants II and III 1 e inside a n or n 37 Furthermore if the frequencies and phase differences of two signals being measured are exact multiples you can calculate the frequency and phase correlation between the two signals 10 X Y Phase difference table Signal Phase difference frequency ratio 0 45 90 f 180 270 360 a IX 1QOlTOI N O ZY gt Illustration 7 Video signal triggering To observe an individual video circuit use the video trigger function to obtain a stable display of video output signal Video field triggering To trigger in the video field follow the steps below Press TRIGGER to display the trigger menu Press F1 to set the type to video TRIG ED Press F2 to set trigger source to A Press F3 select PAL as the video standard Press F4 to select odd field or even field synchronization Adjust the horizontal time base for a clear waveform display o ae a Trigger Video Trigger source A Standard PAL Synchro
26. al system Getting to know the horizontal system Getting to know the trigger system gt gt bbbbl 1 Getting to know your Oscilloscope When beginning to use your oscilloscope first familiarize yourself with the operation front panel This chapter briefly describes the operation and functions of the front panel so you can get started with your oscilloscope as quickly as possible Your oscilloscope comes with a front panel with at a glance functions for easy operation There are function keys and a jog dial on the front panel The jog dial has special functions which will be explained in detail on the following pages The row of 5 keys at the bottom of the display panel are menu operation keys designated as F1 to FS from left to right TENMA With these 5 keys you can set up different options of the current menu The other keys are function keys You can use them to enter different function menus or access particular functions directly 72 9355 72 9360 72 9365 User Manual Figure 1 1 Front panel of Oscilloscopes E HANDHELD DIGITAL 250MS s 72 9355 STORAGE OSCILLOSCOPE 60MHz CURSOR MU SAVE 0hHz Figure 1 1 Figure 1 2 Figure 1 2 Schematic diagram for the display interface Display Zone Apart from the waveform display zone the display panel also features other details about the waveform and the unit s control setup These are explained by their sequence numbers in the above figure 1 Trigger
27. back function as shown in the table below Table 2 13 Waveform playback menu Explanatory Note The number of screens being played and total number of screens Single screen Select single screen playback with the jog dial Playback Play and pause a recorded waveform document Return Gobacktothepreviousmenu Example 5 To request recalling a recorded waveform document saved on the USB device from Example 4 to the oscilloscope and playback 1 Insert the USB device and press SAVE to access the storage menu Press F3 to select the recording function 2 Press F3 to select import then press F2 to activate the USB document option Select 3 with the jog dial and press F4 The playback waveform will appear on screen when the Loading progress bar disappears 3 If F3 is pressed again all recorded waveform screens will be displayed Press F3 to stop playback then select playback of a certain screen of waveform with the jog dial as shown below REPLAY Screen Single screen Playback Return Figure 2 27 Recorded waveform playback M 5 00n d Figure 2 27 24 TENMA 72 9355 72 9360 72 9365 User Manual 8 Cursor Measurement Press CURSOR to display the cursor measurement menu and then press F1 to activate the cursor The CURSOR menu offers two cursor measurement modes voltage and time When measuring voltage press F2 on the front panel and the jog dial to ad
28. dealer has no obligation to provide the following services a Repairing any damage arising from installation repair or maintenance carried out by a non Tenma service representative b Repairing any damage arising from improper use or connection to incompatible equipment c Repairing any damage or malfunction arising from using a power source not provided by Tenma or your Tenma dealer d Servicing a product that has been modified or integrated with other products such modification or integration makes repair more time consuming and difficult This warranty is made available to this product specifically and supersedes all other previous warranties whether express or implied Tenma and its dealers will not make any implied guarantee on the salability or suitability of this product for any specific purpose In the event of breach of warranty terms and conditions repair or replacement of defective product shall be the only and all remedial measure offered by Tenma or your Tenma dealer Notwithstanding any prior notification of potential damage that is indirect special consequential or inevitable Tenma and its dealers shall bear no liability for any such damage General Safety Rules This unit is designed and manufactured strictly in accordance with GB4793 safety requirements for electronic testing meters and IEC61010 1 safety standards It fully meets CAT II 600V insulation and overvoltage requirements and Grade II anti pollution safety standards
29. e the RUN DUO ii do 27 14 Multimeter Measure Mei id A AA AAA iakadeins 21 Chapter 3 Practical Example Must ations ia le 2a Illustration 1 Measuring simple signal S usb did tidad latas 21 Illustration 2 Observing the delay and distortion caused by a sine wave signal passes through the circuit 28 Mustration 3 Acquirino single sonal o a A a 28 Illustration 4 Reducing random noise of SIBNA S oooooooocccccnccccnnnncccccnnn non nn nnnnnn nc c nr narran 29 ustration 5 Using cursors for Measurement or noroi aea A OA 30 IMu stration s Usine the XY TUNC NOM keane canes e aoe e 30 istration Video Siomall TO cemnG3on5 vise lass oboe a sl e eA here eet a pases denies de 31 Chapter 4 System Prompts and Trouble SnOOUNe caros as essed ee ns ora o ett 32 Es Detimi ions DOES y Stein dui 32 Zi ATOM ESOO dl a ld o e ale a bo 32 Chapter 5 UN A tat het er a cas ecatmenedies cent a euat peemece N 32 leProd ct Pro AM pot ages ear les 32 Die WW REL AIM cath he St Bie ce tose E SEE ES rete a eaten wan E a te 36 SC Ona US crios lechada colo dune tauahee blaine MeomamelMdotdebie ideals codicia tecate 37 Chapter 6 O AA A O AI II O Sack et trie tua eran a ate 37 Appendix A gt Pertormante Indicado A Aa 37 Appendix B ACCES SOLES a o at ee a eee eee aa lace cede 40 Appendix Maintenance and Cleanino 0 22021 sz ihier cause A ON A 40 TENMA 72 9355 72 9360 72 9365 User Manual Introduction 72 93xx Series Digital Storage Oscillo
30. e top left corner of the screen 60600 BoOoor TRIG ED Parameter measurement Customized parameter Customized parameter Parameter 1 Indicator Off Figure 3 2 1 k a F Special Farameter Risellelay Figure 3 2 Illustration 3 Acquiring single signals The advantage and special feature of your digital storage oscilloscopes lie in its ability to easily acquire non cyclical signals like pulse and glitch To acquire a single signal you must have transcendental knowledge of that signal to set the trigger level and trigger edge For example if the pulse is a logical signal of TTL level the trigger level should be set at about 2V and the trigger edge should be set to rising edge trigger If you are not certain about the signal you can observe it by automatic or normal trigger to determine the trigger level and trigger edge 28 TENMA 72 9355 72 9360 72 9365 User Manual Steps 1 Asin the previous illustration set the attenuation factor of the probe and Channel A 2 Carry out trigger setup Press TRIGGER to display the trigger setup menu In this menu use F1 F5 and the jog dial to set the trigger type to edge set trigger source to A set trigger coupling to AC set trigger type to single and set edge polarity to rising Adjust horizontal time base and vertical range to an appropriate range Turn the jog dial to get the desired level Press RUN STOP and wait for a signal that m
31. ection width range 5mV div 50V div Automatic waveform and status configuration Storage of waveforms setups and interfaces waveforms and setups reproduction Screen copy function Fine window extension precise analysis of waveform details and overview Automatic measurement of 27 waveform parameters Cursor measurement function Unique waveform recording storage and replay function USB interface that supports USB2 0 Bright color mono 5 7 inch LCD panel at 320 x 240 pixel aspect ratio Built in FFT Multiple waveform math functions including add subtract multiply and divide Edge video pulse width and alternate trigger functions Multimeter function USB drive system software upgrade Multilingual menu displays Help messages in English and Chinese Included accessories 2 x 1 2m 1 1 10 1 probe conforms with EN 61010 031 2002 A1 2008 Power cable User Manual Product Warranty Card 2 x current to voltage converter module Multimeter pen DC adaptor TENMA Chapter 1 User Guide 72 9355 72 9360 72 9365 User Manual Your 72 93xx Series digital storage oscilloscope further referred to as the oscilloscope is a small and compact portable device The user friendly front panel enables easy operation for basic testing and measuring tasks This chapter provides notes on the following General inspection Functional check Probe compensation Automatic setups for waveform display Getting to know the vertic
32. eets the trigger condition If any signal reaches the set trigger level the system will sample once and display it on the screen By using this function you can easily acquire any occasional event For example when a sudden glitch of relatively big amplitude is acquired set the trigger level to just higher than the normal signal level Press RUN STOP and begin waiting When a glitch occurs the machine will automatically trigger and record the waveform immediately before and after triggering By turning the horizontal displacement key you can change the trigger position horizontally to achieve negative delay trigger of various lengths for easy observation of waveform occurring before the glitch Trigger edge Trigger source A Trigger setup Slew rate Rise Hold off Figure 3 3 Single signal trigger Rise 40 00n 2 Figure 3 3 Illustration 4 Reducing random noise of signals If the signal being measured is stacked with random noise you can adjust the setups of your oscilloscope to filter or reduce the noise so it will not cause interference to the signal during measurement Waveform is shown TRIGED below Input A On Coupling AC Bandwidth limit Full bandwidth Bias Voltage Others Figure 3 4 Reducing random noise of signals Figure 3 4 Steps 1 As in the previous illustration set the attenuation factor of the probe and Channel A 2 Connect the signal to ensure stable display of waveform See the previous illu
33. ent Import the recorded waveform document on the USB device to the oscilloscope 1 10 Save USB document Save the recorded waveform on the USB device 1 10 Return Gobacktothepreviousmenu Example 4 To request recording a Channel A waveform saved and saving it on the USB device 1 Press SAVE to access the storage menu then press F3 to select the record function 2 Press F1 to activate the waveform recording function The system enters the recording mode The number of screens being recorded is shown in the top right corner 3 When all specified screens are recorded press F1 to close the recording function All recorded waveforms will be saved internally 4 Insert the USB device and press F4 to access the record and save menu Press F2 to activate the USB document option then select 3 with the jog dial 5 Press F4 The waveform is successfully recorded on the USB device when the Saving progress bar disappears Note Your 72 93xx Series Digital Storage Oscilloscope can record up to 1 000 screens of waveform data If any of the following operations is activated during recording the oscilloscope will restart recording from screen 1 again E Changing vertical range of the signal a Changing horizontal time base of the signal E Changing horizontal position of the signal E Changing vertical position of the signal Waveform playback In the record menu press F2 to access the waveform play
34. ero line value enhances the trend plot resolution Chapter 3 Practical Example Illustrations Illustration 1 Measuring simple signals To observe and measure an unknown signal in the circuit and to quickly display and measure the signal s frequency and peak to peak value 1 To quickly display this signal follow the steps below In the probe menu set the attenuation factor to 10X and set the switch on the probe to 10X Connect the Channel A probe to the circuitry point to be measured Press AUTO The oscilloscope will carry out auto setup to optimize waveform display In this status you can further adjust the vertical and horizontal range until you get the desired waveform display 27 TENMA Voltage and time parameters for automatic measurement Your oscilloscope can automatically measure most display signals To measure signal frequency and peak to peak value follow the steps below Press SCOPE for the frequently used function menu Press F2 to enter the parameter measurement menu and then press F1 to set parameter measurement to defined parameter Press F2 to set defined parameter to parameter 1 72 9355 72 9360 72 9365 User Manual Press F3 to select the frequency parameter with the jog dial then press F4 to select channel A Press F2 set defined parameter to parameter 2 Press F3 to select the peak to peak parameter with the jog dial then press F4
35. f the values based on the probe attenuation factor to keep the reading of the signal being measured correct Normal waveform display Waveform is invert Invert 1 Setting channel coupling Take the example of applying a signal to Channel A The signal being tested is a sine signal that contains DC quantities Press A to select Channel A Then press F1 to set A input to ON Next press F2 to select DC coupling Both DC and AC quantities of the signal being tested and input to Channel A can pass through The waveform display is as follows TRIG ED Input A On Coupling DC DC coupling setup Bandwidth limit Full bandwidth Bias Voltage Others Figure 2 6 Both DC and AC quantities of the signal are displayed Figure 2 6 13 TENMA Press F2 to select DC coupling DC quantities of the signal being tested and input to Channel A will be intercepted Only AC quantities can pass through The waveform display is as follows 72 9355 72 9360 72 9365 User Manual TRIG EO Input A On Coupling AC AC coupling setup Bandwidth limit Full bandwidth Bias Voltage Others Figure 2 7 Only AC quantities of the signal are displayed Figure 2 7 Press F2 to select ground coupling The channel input is now set to equivalent ground The channel input level appears on screen and waveform display is as shown in Figure 2 8 TRIG EL Note In this mode although waveform is not displayed the input signal
36. f the waveform after the average of gt 16 waveforms acquired waveforms is taken 3 x reading 0 05 div la pi o Ya ve z Trigger sensitivity lt 1 div Trigger level range 5 div from the centre of the screen Trigger level accuracy Typical 0 3 div x V div within 4 div from the centre of the screen applied on signals of gt 20ns rise or fall time Pre trigger capability Normal mode scanning mode pre trigger delayed trigger Pre trigger depth is adjustable Hold off range 40ns 1 5s Set level to 50 Typical nput signal frequency gt 50Hz Trigger mode Greater than less than or equal to positive pulse Greater than less than or equal to negative pulse Pulse width range 40ns 6 4s Video Trigger Trigger sensitivity video trigger 2 div peak to peak typical 2 div peak to peak signal format and Supports standard NTSC and PAL line field frequency video trigger Line range 1 525 NTSC and 1 625 PAL type Alternate Trigger ATrigger________ Edge pulse video B Trigger____ k Edge pulse video 38 TENMA 72 9355 72 9360 72 9365 User Manual Measurement Voltage difference AV between cursors time difference AT between cursors Automatic measurement Cursor display is allowed during auto measurement Total 27 measurements peak to peak amplitude maximum minimum top bottom mean average root mean square overshoot pre shoot frequency cycle
37. form this prompt is shown on the screen A progress bar appears at the bottom Loading During waveform recall this prompt is shown on the screen A progress bar appears at the bottom Function Disabled This prompt appears when ZOOM is pressed at 5ns 100ns time base 2 Troubleshooting 1 Ifthe screen of your oscilloscope remains black without any display after powering on follow the steps below to find the cause Check if the power switch is properly pressed Plug in the DC power adaptor and check if the battery is out Check the power cable connection Restart the unit after performing the above checks If the unit still fails to power on contact UNI T to request service 2 Ifno waveform is displayed after you have acquired a signal follow the steps below to find the cause Check whether the probe is properly connected to the signal lead Check whether the signal lead is properly connected to the BNC channel adaptor Check whether the probe is connected properly to the object to be measured Check whether the object for measurement is generating signals connect the channel with signals to the questionable channel to find the cause Restart the acquisition process 3 The measurement voltage amplitude value is 10 times larger or smaller than the actual value Check if the channel attenuation factor corresponds with the probe attenuation you have chosen 4 There is waveform display but it is not stable
38. he connection point In frequency domain this is known as leakage To avoid leakage multiply the original waveform by one window function to set the value at 0 for start and finish compulsively For application of the window function please see the table below Table 2 17 FET function window window but amplitude recognition rate is poorer Hanning window after Blackman The best amplitude recognition rate and the poorest Mainly for single frequency signals to search for higher order frequency recognition rate harmonic wave The best frequency recognition rate the worst Temporary or fast pulse Signal level is generally the same before amplitude recognition rate Basically similar to a status and after Equal sine wave of very similar frequency There is without adding window broad band random noise with slow moving wave spectrum Definition FFT recognition rate It means the quotient of the sampling and math points When math point value is fixed the sampling rate should be as low as possible Nyquist frequency To rebuild the original waveform at least 2f sampling rate should be used for waveform with a maximum frequency of f This is known as Nyquist stability criterion where f is the Nyquist frequency and 2f is the Nyquist sampling rate 11 Window Extension Window extension can be used to zoom in a band of waveform to check image details The window extension setting must not be slower than that of the main time base as i
39. he current setup or waveform See Table 2 11 Recall a saved setup or waveform See Table 2 12 Record and playback a waveform OFF Close the recalled waveform Save In the storage menu press F1 to select the save function For setup see the table below Table 2 10 Storage menu Setup Save the current setups of all menus Waveform A Save the Channel A waveform Waveform B Save the Channel B waveform DS SS Savo the waveform document c on the USB device as Go back to the previous menu Example 1 To request saving a Channel A waveform both on the internal memory and the USB device Press A to select Channel A l 2 Press SAVE to access the storage menu and then press F1 to select the storage function 3 Press F1 to select waveform A as save type 4 Press F2 to select internal as the save medium 5 Press F3 to select position 2 with the jog dial 6 Press F4 The waveform is successfully saved when the Saving progress bar disappears To store the waveform on a USB device repeat the above steps but select USB as the save medium The save menu is as follows Save Waveform A Position Run Return Figure 2 26 Waveform save menu Internal ES Figure 2 26 Screen copy With this function you can save the display interface on the USB device Example 2 To request saving the display interface on the USB device 1 Press A to turn on Channel A 2 Insert the USB dev
40. ice into the USB jack 3 Press and hold the SAVE button for 4 to 5 seconds and then release The Saving progress bar will appear The display interface is successfully saved on the USB device when that progress bar disappears You can see the saved USB image on your computer It is saved in the root directory of the USB device Recall In the storage menu press F2 to select the recall function For setup see Table 2 11 Table 2 11 Recall menu Reference waveform Recall and display a saved waveform pe USB Set and select the recall position with the jog dial Run Ruin the previously selected operation Return Gobacktothepreviousmenu 23 TENMA Example 3 To request recalling and displaying a waveform saved in example 1 72 9355 72 9360 72 9365 User Manual 1 Press SAVE to access the storage menu then press F2 to select the recall function 2 Press F1 to select reference waveform as the recall type 3 Press F2 to select internal as the save medium 4 Press F3 to select position 2 with the jog dial 5 Press F4 The waveform will be recalled to screen when the Loading progress bar disappears Record In the storage menu press F3 to select the record function For setup see Table 2 12 Table 2 12 Record menu Explanatory Note N Turn the waveform recording function on and off OFF Playback See Table2 13 Playback the recorded waveform on the screen USB docum
41. ify operation Press AUTO and the oscilloscope can automatically adjust the vertical deflection factor and horizontal time base range according to the amplitude and frequency of the waveform so as to ensure stable waveform display When the oscilloscope is in auto setup mode the system setup is as shown below Table 2 18 Auto setup menu Trigger source Set to A but if there is no signal in A and a signal is applied to B it will be set to B 14 Multimeter Measurement Operation instructions Open the multimeter function menu by pressing METER Setup is as follows Table 2 19 Multimeter measurement menu Explanatory Note Type DC voltage Select the DC voltage measurement mode AC voltage Select the AC voltage measurement mode Resistance Select the resistance measurement mode ON OFF Select the ON OFF measurement mode Diode Select the diode measurement mode Capacitance Select the capacitance measurement mode DC current Select the DC current measurement mode AC current Select the AC current measurement mode Range mode Auto The multimeter automatically selects an appropriate range for measurement to The user manually selects an appropriate range for measurement Range Display the current measurement range Trend plot On off Turn the trend plot function on off This function records the moving trends of voltage S a current resistance within a specified period Zero line value When trend plot is on the z
42. ing the triggering time based on the pulse width You can acquire abnormal pulse by setting the pulse width condition Table 2 3 Explanatory Note Set edge trigger as the trigger type Trigger source A Set A as the signal source trigger signal B Set B as the signal source trigger signal Alternate A and B trigger their individual signals alternately Trigger setup Trigger mode Set to acquire waveform only if no trigger is detected Set to acquire waveform only if trigger condition is satisfied Set to acquire one waveform when one trigger is detected then stop Trigger setup AC Intercept AC and DC quantities of the input signal DC Intercept DC quantities of the input signal H F Reject Suppress low frequency quantities below 80kHz of the signal L F Reject Suppress high frequency quantities above 80kHz of the signal Pulse width 40ns 6 40s Set pulse width with the jog dial Pulse width setup width Trigger occurs when pulse width equals to the set value iti x Trigger occurs when pulse width is smaller than the set value gt Trigger occurs when pulse width is larger than the set value width Positive Set the positive pulse width as the trigger signal Negative Set the negative pulse width as the trigger signal 17 TENMA Video Trigger By selecting video trigger you can carry out field or line trigger with NTSC or PAL standard video signals Trigger menus are as follows 72 9355 72 9360 72 9365 User Manual
43. ins DC quantities AC mode is unsuitable Duty ratio of the signal is too small Waveform details are hard to observe even in AC mode 4 Setting the probe rate To match the probe attenuation factor setup it is necessary to set up the probe attenuation factor in the channel operation menu accordingly For example when the probe attenuation factor is 10 1 set the probe attenuation factor at 10X in the menu Apply this principle to other values to ensure the voltage reading 1s correct The figure below shows the setup and vertical range display when the probe is set at 10 1 Press A to turn Channel A on then press F5 Select Others and select 10X probe ratio with the jog dial as shown below Set to 10X TRIG ED Return K return Others Normal Invert Figure 2 11 Setting the probe ratio Figure 2 11 E TRIG ED Next press the jog dial once to confirm then press the jog dial again to close the menu After confirming amplitude reading of Channel A is displayed as follows Input A Changes in vertical range On Coupling DC Bandwidth limit Full bandwidth Bias Voltage Others E Full Figure 2 12 Changes in vertical range Figure 2 12 5 Setting the waveform polarity Inverted waveform This indicates the signal is 180 inverted in relation to the channel ground level The example below shows the setup for signal inversion and the display for inverted signal Press A to turn Channel A on then press F5
44. just the positions of the two cursors for AV measurement Likewise by selecting time you can measure At Voltage time measurement modes Positions of cursor 1 and cursor 2 can be adjusted with the jog dial and F2 key Press F2 to make the cursor move in solid line and then adjust it with the jog dial to a desired position If you require to move two cursors simultaneously press F4 to turn the Co Movement function ON The cursor measurement value is displayed in the top left corner 9 Utility Function Setup Press USER to pop up the utility system setup menu as shown in Table 2 14 Table 2 14 Utility menu Option Energy save mode OFF When operating with battery the oscilloscope will power off at the set 5 min time to save battery power if the unit remains idle for a specified period 10 min of time If DC power adaptor is connected this energy save mode is 15 min disabled 20 min Language Simplified Chinese Traditional Chinese Select the interface language English Interface design Classic Set the interface design of the testing device There are three designs to Traditional choose from Modern OFF ae OK Run auto system calibration SystemInfo Display the software and hardware version of the oscilloscope Contrast Adjust the display brightness Setting the energy save mode The initial auto power off time is 10 minutes To adjust this follow the steps below 1 Press USER for the utility menu 2 Press
45. llustrated by the following figure TRIG EO Horizontal extension Input A On 200 015 Coupling DC Bandwidth limit Full bandwidth Bias Voltage Others Full Figure 2 28 Screen display with window extended Figure 2 28 26 TENMA In the window extension mode the display is divided into two zones as shown in Figure 2 28 The upper part displays the original waveform You can move the horizontally extended part of this zone left and right with the lt gt button or enlarge and reduce the selected zone with the f Jj button 72 9355 72 9360 72 9365 User Manual The lower part is the horizontally extended waveform of the selected original waveform zone Please note that the recognition rate of extended time base relative to the main time base is now higher as shown in the above figure Since the waveform shown in the entire lower part corresponds to the selected zone in the upper part you can increase the extended time base by pressing the CLJ button to decrease the size of the selected zone In other words you can increase the multiple of waveform extension 12 Hiding the Menus Use the CLEAR MENU key to hide the current menu To display a menu press any menu key 13 Using the Run Button RUN STOP There is a RUN STOP button on the front panel When this button is pressed your oscilloscope stops to acquire data To restart data acquisitions press it again Auto Setup Auto Setup can simpl
46. lustration 6 Using the X Y function To check the phase difference between signals of the two channels Example To measure the phase variation when a signal passes through the circuit connect your oscilloscope to the circuit and monitor the input and output signals To check the circuit s input and output in the X Y coordinate mode follow the steps below Set the attenuation factor of the channel probe to 10X Set the switch of the probe to 10X Connect the Channel A probe to the input terminal of the network Connect the Channel B probe to the output terminal of the network If the channel is not on press the A and B menu button then press F1 to enable the two channels Press AUTO Adjust the vertical amplitude range to make the displayed amplitude of the two channels about equal Press the SCOPE menu key then F3 to recall the display control menu Press the jog dial to select X Y The oscilloscope will display the circuit s input and output characteristics in a Lissajous figure Adjust the vertical amplitude range and vertical position to achieve the best A 3 waveform i 9 Using the elliptic oscilloscope display graph to observe measure and calculate Pa A A a The level of the signal L must be centered 7 the phase difference See the figure below SY a The signal must be horizontally center gt Figure 3 7 Lissajous figure pi Figure 3 7 30 TENMA 72 9355 72 9360 72 9365 User Manu
47. m 800 543 4330 Chapter 6 Appendixes Appendix A Performance Indicators Unless otherwise specified all technical specifications apply to probes with an attenuation setting of 10X and the 72 93xx Series Digital Oscilloscopes To verify that your oscilloscope meets specifications it must first meet the following conditions a The oscilloscope must have been operating continuously for thirty minutes within the specified operating temperature a If the operating temperature changes by more than 5 C you must perform the Self Cal operation accessible through the System Functions menu All specifications are guaranteed unless noted Typical Technical Indicators ampling Modes ampling modes enn Fons 72 9355 500MS s 72 9360 25GS s 1GS s 72 9365 Sampling __ Sampling peak detect average A Average Whenall channels have made N samplings simultaneously N is selectable from 2 4 8 16 32 64 128 to 256 Input Input impedance IMQ 2 in parallel with 21 pF 3pF robe attenuation factor 1X 10X 100X 1000X Maximum input voltage 400V DC AC Peak Time delay between channels Typical Horizontal Waveform interpolation Recording length 2 x 512K sampling point Storage depth Scanning range s div 2ns div 50s div 200MHz 5ns div 50s div 100MHz 60MHz At 1 2 5 increment Accuracy of sampling 50ppm any time interval gt 1ms rate and delay time Time interval Single 1 sampling time inter
48. n Figure 5 4 will appear with the following prompt System upgrade is in progress This process will take 3 to 5 minutes To avoid unforeseeable error do not disconnect power during system upgrade Current upgrade progress is Figure 5 4 Caution If power is disconnected or the unit is turned off during this stage of program upgrade the oscilloscope will fail to function normally In that case you have to reinsert the USB device and complete the upgrade step by step as prompted before normal operation can be resumed In the event of upgrade failure contact us immediately 4 When upgrade progress reaches 100 display will change to OK to indicate success of the current program upgrade task A successful upgrade prompt as shown in Figure 5 5 will appear Congratulations Upgrade is successful Please remove the USB device and restart your oscilloscope 33 TENMA Figure 5 5 72 9355 72 9360 72 9365 User Manual E Paz Welcome vou are usi SB Update proeramf13 2 Welcome you are using USE Update program V3 2 recom Jy ieiz E Tang USB Update program y Cas Please waitting for read file Ok Please press F5 to continue or Fl to cancel Are you sure to update Fi Yes Fl No Yes il rie J 1 af I ET SS ae unon exception will happen Please wartting for update Ok Figure 5 5 Figure 5 6 Caution When you restart the oscilloscope after successful upgrade the system will initiate itself It will
49. n on Channel A 2 Press SCOPE to enter the frequently used function menu 3 Press F2 to enter the parameter measurement options 4 Press F1 to select customized parameter for parameter measurement 5 Press F2 to select parameter 1 as the customized parameter 6 Press F3 then turn the jog dial to select peak to peak value then press the jog dial once to confirm The screen will exit from the current menu 7 Press F4 to select Channel A 8 Press F5 to set indicator to parameter 1 TRIG ED The peak to peak value 1s displayed in the top right corner as shown below Parameter measurement Customized parameter Customized parameter Parameter 1 Channel A Indicator Parameter 1 Figure 2 22 Selected parameter measurement M 5 00n A Special E O PREFE A Parameterl Figure 2 22 21 TENMA Note Customized parameters are for quick parameter measurement This device has 27 measurement parameters In general use the user is not required to measure all parameters Only a few have to be tested In this case set the parameters you require as customized parameters All such parameters will be displayed on the screen Automatic measurement of parameters Your oscilloscope can automatically measure the following voltage parameters Maximum value Vmax The voltage value from the highest point to ground GND of the waveform Minimum value Vmin The voltage value from the lowest point to ground GND of the
50. nization Odd field Figure 3 8 Video odd field triggering o A A Odd Field Figure 3 8 Video line triggering To trigger on the video line follow the steps below Press TRIGGER to display the trigger menu Press F1 to set the type to video Press F2 to set trigger source to A TRIGED Press F3 select PAL as the video standard Press F4 to select defined line synchronization Make the signal trigger on any particular line by turning the jog dial Adjust the horizontal time base for a clear waveform display UP eee ee Trigger Video Trigger source A Standard PAL Synchronization Specified line Specified line Figure 3 9 Video line triggering Line Hum Figure 3 9 31 TENMA Chapter 4 System Prompts and Trouble shooting 72 9355 72 9360 72 9365 User Manual 1 Definitions of System Prompts Adjustment at Ultimate Limit This informs you that the multifunction control knob has reached its adjustment limit in the current status No further adjust is possible When the vertical deflection factor switch time base switch X shift vertical shift and trigger level adjustments have reached their ultimate limits this prompt will appear USB Device Installed After a USB device is plugged into the oscilloscope this prompt appears when the connection 1s valid USB Device Unplugged After a USB key is unplugged from the oscilloscope this prompt appears Saving When the oscilloscope is saving a wave
51. often as operating conditions require To clean the exterior surface perform the following steps 1 Remove loose dust on the outside of the oscilloscope and probes with a soft cloth When cleaning the LCD use care to avoid scratching the clear protection film of the LCD 2 Use a dampened but not dripping soft cloth to clean the oscilloscope Remember to disconnect power Use a mild cleaner or water To avoid damaging the product or probe do not use abrasive chemical cleaner This user manual may be revised without prior notice Copyright 2011 MCM Electronics All rights reserved Manufacturer Tenma Test Equipment 405 S Pioneer Blvd Springboro OH 45066 http www tenma com 40
52. pensation waveform display adjust the adjustable tab of the probe with screwdriver with non metal handle in the probe accessory pack until a Correct Compensation waveform shown in the above figure is displayed 72 9355 72 9360 72 9365 User Manual Warning To avoid electric shock when measuring high voltage with the probe ensure the probe s insulation lead is in good condition Do not touch the metal part of the probe when connected to HV power 5 Automatic Setups Automatic Setup for Waveform Display Your oscilloscope features an auto setup function It can automatically adjust the vertical deflection factor scanning time base and trigger mode based on the input signal until the most appropriate waveform is displayed The automatic setup function can only be operated when the signal to be measured is 50Hz or above and the duty ratio is larger than 1 Using the Automatic Setup Function k Connect the signal to be tested to the signal input channel Ze Press AUTO The oscilloscope will automatically set the vertical deflection factor scanning time base and trigger mode Should you require to make a more detailed check you can adjust manually after the automatic setup process until you get the optimal waveform display 6 Getting to Know the Operation Panel Please see Figure 1 7 below for operation front panel instructions Figure 1 7 Operation front panel Figure 7 The Vertical i By pressing
53. pling 1s selected H 5 00ns Figure 2 21 Note 1 Use Real time sampling to observe single signals 2 Use Equivalent sampling to observe high frequency cyclical signals 3 To avoid mixed envelop select Peak Detect 4 To reduce random noise of the displayed signal select average sampling and increase the average number of times in multiples of 2 1 e selecting from 2 to 256 Definitions Normal sampling mode The digital storage oscilloscope acquires signal sample at equal and regular intervals to reconstruct the waveform Peak detect mode In this acquisition mode the digital storage oscilloscope identifies the biggest and smallest values of the input signals at each sampling interval and uses these values to display the waveform In effect it can acquire and display narrow pulse which would otherwise be omitted in the sampling mode Noise seems to be more significant in this mode Average mode The digital storage oscilloscope acquires several waveforms and takes the average value to display the final waveform You can use this mode to reduce random noise Setting the Display Mode Press SCOPE then F3 to access the display menu shown in Table 2 7 below Table 2 7 Display menu Type Vector Sampling points are linked for display Dot Sampling points are directly displayed Duration OFF Waveform on the screen is refreshed at normal rate 2s Waveform on the screen is maintained for 2 seconds and then refreshed 5s Waveform on
54. ptor or components When any fault is suspected stop operation If you suspect a fault ask a qualified maintenance professional to carry out inspection Maintain good ventilation Do not operate in humid condition Do not operate in combustible and explosive conditions Keep the product surface clean and dry 72 9355 72 9360 72 9365 User Manual Safety Messages and Symbols Safety terminology used in this manual The following messages may appear in this manual Warning Warning statements identify conditions or practices that could result in injury or loss of life Caution Caution statements identify conditions or practices that could result in damage to this unit or other properties Messages on the product The following messages may appear on the product Danger means potential damage or injury risk is immediate if not properly observed Warning means potential damage or injury risk is high if not properly observed Caution means possible damage to this product or other properties is elevated Preface This manual provides information on the operation of the Tenma 72 93xx digital storage oscilloscope series Guidance is given in several chapters as follows Chapter 1 User Guide Simple guide to oscilloscope functions and installation Chapter 2 Instrument Setups Guide to operation Chapter 3 Practical Illustrations Provided to solve various testing problems Chapter 4 System Prompts and
55. remains connected to the channel circuit Input A On Coupling Ground Ground coupling setup Bandwidth limit Full bandwidth Bias Voltage Others Figure 2 8 Screen display for the ground mode GND Full Figure 2 8 2 Setting the channel bandwidth limit Take the example of applying a signal to Channel B The signal being tested is a signal stacked with high frequency quantities Press B to turn Channel B on Next press F3 to set channel bandwidth to full bandwidth The signal being measured can pass through even if it contains high frequency quantities The waveform display is as shown in Figure 2 9 TRIG EO Input B On Coupling DC Bandwidth limit Full bandwidth setup Y F Y Full bandwidth Bias Voltage Others F Full Figure 2 9 Full bandwidth setup Figure 2 9 Input B TRIG ED On Coupling AC Bandwidth limit 20MHz 20MHz bandwidth limit Bias Voltage Others Figure 2 10 20MHz bandwidth limit Press F3 to set bandwidth limit to 20MHz All high frequency quantities higher than 20MHz in the signal being tested will be limited The waveform display is as shown in 20 000 Figure 2 10 E 20MHz Figure 2 10 14 TENMA 72 9355 72 9360 72 9365 User Manual 3 Setting bias voltage Bias voltage is suitable for observing the following signals The input signal is made up of relatively high DC quantities and relatively low AC quantities The input AC signal is very low in frequency and conta
56. rogram upgrade document into the USB HOST jack 2 Press POWER to power on the oscilloscope and enter the program upgrade system welcome screen as shown in Figure 5 1 The following message be appear Welcome to the USB program upgrade system Please press F5 to start upgrade or F1 to cancel Figure 5 1 UT1102C uts 331 KB 2010 02 18 17 47 UT41 O2C uts 331 KB 2010 02 18 17 21 Welcome you are using USB AA UT21 02CE wuts Figure 5 1 Figure 5 2 1 Press F5 as shown in Figure 5 1 to start the program upgrade operation If there is only one upgrade pack in the USB root directory go directly to step 4 Otherwise the upgrade document selection screen shown in Figure 5 2 will pop up Use the jog dial to select the document you need then press F5 to confirm To exit upgrade press F1 Figure 5 2 2 The upgrade system will determine whether the upgrade document meets upgrade criteria When done the interface shown in Figure 5 3 appears to prompt Are you sure you wish to update 3 Figure 5 3 Welcome you are using USB Update program W3 2 1 Welcome you are using USB Update program W3 2 1 Please waitting for read Tile 0k Please waitting for read file 0k Are you sure to update FO Yes Fl No Yes CATION It will cost 35 minute when updating c I i Figure 5 3 Figure 5 4 3 On the screen shown in Figure 5 3 press FS to confirm you require to upgrade the program The screen shown i
57. rtment or download it online from our website Use the built in program upgrade system of the oscilloscope to upgrade the program so that it is the latest version released by Tenma and UniTrend Preparations for upgrade 1 You have to own a compatible oscilloscope manufactured by Tenma To check the model hardware version and software version of the unit go to the system information sub menu under the user menu 2 The software upgrade pack that corresponds with the model and hardware version of the oscilloscope requiring upgrade is available online from our website or from our marketing department The software version should be higher than the one currently installed 3 Prepare a USB device disk format FAT After decompressing the program upgrade pack save it in the USB root directory The program upgrade document has the suffix uts Requirements 1 The product model of the program upgrade pack must be the same with the oscilloscope to be upgraded 2 The hardware version of the program upgrade pack must be the same with the oscilloscope to be upgraded 3 The software version of the program upgrade pack must be higher than or same as the software version of the oscilloscope to be upgraded 4 The FLASH type of the program upgrade pack must be the same as the oscilloscope to be upgraded 32 TENMA 72 9355 72 9360 72 9365 User Manual Program upgrade 1 Power off the oscilloscope then insert the USB device with the p
58. scopes 72 93xx oscilloscopes offer user friendliness outstanding technical indicators and a host of advanced features They are your perfect tools to complete testing tasks swiftly and efficiently This manual is a user guide for 3 models of this digital storage oscilloscope series Bandwidth Sampling Rate Display 72 9355 60MHz 250MS s 72 9360 100MHz 500MS s 72 9365 200MHz 1GS s 72 93xx oscilloscopes offer a user friendly front panel with clear labeling to enable access to all basic functions for easy operation The scaling and position buttons for all channels are optimally arranged for direct view operation Since the design is based on the controls of traditional instruments users can use the new units without spending considerable time in learning and familiarizing with operation For faster adjustment to ease testing there is an AUTO key to instantly display the appropriate waveform and range position Apart from being extremely user friendly 72 93xx oscilloscopes have the high performance indicators and superb functions required for speedy execution of measurement tasks The strong trigger and analytical functions make it easy to acquire and analyze waveforms while the sharp and clear LCD and math functions ensure clear observation and reliable analysis of signal conditions The performance features listed below will explain why the 72 93xx series can fully satisfy your testing and measurement requirements Dual channels vertical defl
59. source status display is as follows A Select signals of Channel A as the trigger signal source B Select signals of Channel B as the trigger signal source AB Select signals of Channels A and B as the alternate trigger signal source 2 Trigger coupling mode display is as follows AC trigger coupling mode 1 e only AC quantities larger than 10Hz of the trigger signals can pass the coupling capacitor The DC will be intercepted This is a general trigger coupling mode TENMA DC trigger coupling mode i e allowing both AC and DC quantities of the trigger signal to pass through to the trigger circuit This mode is suitable for observing ultra low frequency signals High frequency suppression mode 1 e rejecting high frequency AC quantities above 80 kHz of the trigger signal This mode is suitable for observing low frequency signals Low frequency suppression mode 1 e rejecting low frequency AC quantities below 80 kHz of the trigger signal This mode is suitable for observing high frequency signals 3 This reading is the rising edge level 4 Trigger status is displayed as follows 72 9355 72 9360 72 9365 User Manual ARMED The oscilloscope is acquiring pre trigger data All triggers are ignored READY The oscilloscope has acquired all pre trigger data and is ready to accept trigger TRIG ED The oscilloscope has detected one trigger and is acquiring post trigger data STOP The oscilloscope has stopped acquiring
60. ss the Run button once and the oscilloscope will wait for trigger One sampling will occur and the acquired waveform will be displayed when the oscilloscope detects a trigger Then trigger will stop Trigger coupling Trigger coupling determines which quantities of the signal are transmitted to the trigger circuit Coupling modes are DC AC low frequency suppression and high frequency suppression E DC Allowing all quantities to pass a AC Intercepting DC quantities and attenuating signals under 10Hz a Low Frequency Suppression Intercepting DC quantities and attenuating low frequency quantities under 80kHz E High Frequency Suppression Attenuating high frequency quantities over 80kHz Pre trigger Delayed Trigger Data sampled before after triggering The trigger position is typically set at the horizontal center of the screen In this case you are able to view 6 divisions of pre trigger and delayed information Adjusting the horizontal position of the waveform allows you to see more pre trigger information By observing pre trigger data you can see the waveform before trigger occurs For example you can detect the glitch that occurs when the circuitry starts Observation and analysis of trigger data can help you identify the cause of glitch 6 Acquisition Modes Display and Automatic Measurement Press SCOPE to access frequently used function options as shown in the table below Table 2 5 Oscilloscope Function Menu Explanatory
61. stration for operation instruction See the previous chapter for guidance on adjusting the horizontal time base and vertical range 3 Improving trigger by setting trigger coupling O Press TRIGGER to display the trigger setup menu Press F3 to set trigger coupling in the trigger setup menu to low frequency suppression or high frequency suppression By selecting low frequency suppression a high pass filter is set up It filters low frequency signal quantities under 80 kHz and allows high frequency signal quantities to pass through If you select high frequency suppression a low pass filter is set up It filters high frequency signal quantities higher than 80 kHz and allows low frequency signal quantities to pass through By setting low frequency suppression or high frequency suppression you can suppress low frequency or high frequency noise respectively and achieve a stable trigger 4 Reducing display noise by setting the acquisition mode If the signal being measured is stacked with random noise and the waveform is too coarse as a result you can use the average acquisition mode to eliminate random noise display and reduce the size of waveform for easy observation and measurement After getting the mean random noise is reduced and details of the signal are clearer Follow the steps Press SCOPE then F1 to set acquisition mode to Average then turn the jog dial to adjust the average number of times in multiples of 2 i e 2 to 256 until
62. t with the jog dial See the Cursor Functions section on P 29 for details 5 Using the math function with the jog dial See the Math Function section on P 30 for details 3 Vertical System Setup Channel A Channel B and shifting signals vertically Each channel has its own menu You should set up each item for each channel individually Press the A or B function key and the system will display the operation menu for Channel A or Channel B For explanatory notes based on Channel A see Table 2 1 below Table 2 1 Explanatory notes for channel A menu AC and DC quantities of input signal is allowed to pass This mode is for observing DC or exchange signals with DC quantities DC quantities of the input signal are intercepted This mode is for observing exchange signals with DC quantities intercepted DC level of the channel input terminal upon equivalent grounding 1s Bandwidth limit Full bandwidth The oscilloscope s frequency bandwidth is full bandwidth Limit bandwidth to 20MHz to reduce display noise 20MHz Bias Voltage Bias voltage Adjust the channel bias voltage with the jog dial When the DC xxmV quantities of the signal being tested are much larger than the amplitude of the AC signal you can offset the DC quantities with bias voltage In this condition you can observe the amplified AC signal Reset the bias voltage to zero Reset to zero Go back to the Channel A menu Return Others Probe ratio Select one o
63. the figure below Trigger edge Trigger source Alternate Trigger setup Slew rate Rise Holdoff Figure 2 19 Alternate trigger Rise 40 00n gt Figure 2 19 Alternate trigger can also be used to compare pulse widths 18 TENMA 72 9355 72 9360 72 9365 User Manual Definitions 1 2 3 4 Trigger source Trigger can be obtained from various sources Input channel A or B and alternate E Input Channel The most common trigger source is input channel choose A or B The channel selected as trigger source can operate normally only when the corresponding input channel is on Trigger mode Determine the action of your oscilloscope at trigger by selecting the mode This oscilloscope offers three trigger modes for selection auto normal and single a Auto Trigger The system will acquire waveform data automatically when there is no trigger signal input The scan baseline is shown on the display When the trigger signal is generated it automatically turns to trigger scan for signal synchronization Note When time base of the scan range 1s set to 50ms div or slower the oscilloscope will enter the Scan mode a Normal Trigger In this mode your oscilloscope samples waveforms only when triggering conditions are met The system stops acquiring data and waits when there is no trigger signal When the trigger signal is generated trigger scan occurs E Single Trigger In this mode you only have to pre
64. the prompt shown in Figure 5 9 Sorry reading has failed Please contact us for a new upgrade document Remove the USB device and reboot 34 TENMA 72 9355 72 9360 72 9365 User Manual Figure 5 9 Welcome you are using USB Update program Y3 2y Please waitting for read file 0k E25 The package s flash type isn t same with this D501 F 3 Y am Flease read user manual get system infomation im detail Welcome 1 you are using USB Update programi a a Please waltting for read file Falled El 4 We are sorry for this case please contact with us Figure 5 9 Figure 5 10 5 During upgrade if the FLASH of the program upgrade document you copy or select is different from that of the oscilloscope the prompt in Figure 5 10 will appear FLASH of the upgrade document is incompatible with the oscilloscope Please read the user manual access system information in the utility menu and contact us Remove the USB device and reboot Figure 5 10 6 During upgrade if the system reads that the format of the program upgrade pack document is different from that of the oscilloscope the prompt in Figure 5 11 will appear Format of the program upgrade pack document is incorrect Remove the USB device and reboot Figure 5 11 Welcome you are using USB Update program 13 2 1 Please wartting Tor read Tile 0k E27 Sorry the package format isn t correct Welcome you are using USB Update program 13 211 Please
65. tire unit If the exterior of the unit is damaged or it is not operating normally or it fails to pass the performance test please contact your Tenma dealer In the event of any shipping damages please retain the packaging and notify your Tenma dealer We will be glad to arrange maintenance or repair 3 Functional Check Carry out a quick functional check in the following steps to make sure your oscilloscope is operating normally 1 Power on the unit You can select from two power supply methods internal battery power or external DC adaptor power Power supply voltage of the DC adaptor is grid voltage After connecting to power start the self calibration process by pressing the USER button then F3 This will ensure optimal performance 2 Accessing signals Your oscilloscope has dual input channels Please access signals in the following steps Connect the probe of the digital storage oscilloscope to the red input terminal Channel A and set the attenuation switch of the probe to 10X Figure 1 3 Setting the probe attenuation switch Figure 1 3 TENMA You have to set the probe attenuation factor of the oscilloscope This factor changes the vertical range multiple to ensure the measurement result correctly reflects the amplitude of the signal being tested Set the attenuation factor of the probe as follows Select other menu in Channel A then set probe ratio to 10X with the jog dial 72 9355 72 9360 72 9365
66. to select channel A Frequency and Peak to peak measurements will now appear in the top left corner of the screen F2 F3 F2 066000 Frequency Peak to peak Figure 3 1 Automatic measurement TRIG ED Figure 3 1 Illustration 2 Observing the delay caused by a sine wave signal passes through the circuit As in the previous scenario set the probe attenuation factor of the probe and oscilloscope channel to 10X Connect Channel A to the circuit signal input terminal Connect Channel B to the output terminal Steps 1 To display Channel A and Channel B signals Press AUTO Continue to adjust the horizontal and vertical range until you get the desired waveform display Press the Channel A vertical displacement key to adjust Channel A s vertical position Press the Channel B vertical displacement key to adjust Channel B s vertical position so that the waveforms of Channel A and B do not overlap This will make observation easier Observing the delay caused by a sine wave signal passes through the circuit and observing waveform changes When measuring channel delay automatically press SCOPE to display the frequently used function menu Press F2 to enter the parameter measurement menu Press F1 to set parameter measurement to defined parameter Press F2 to set defined parameter to parameter 1 Press F3 to select rising delay parameter with the jog dial You can see the delay value under rising delay in th
67. val 50ppm x reading 0 6ns AT measurement gt 16 average values 1 sampling time interval 50ppm x reading 0 4ns accuracy full bandwidth 37 TENMA 72 9355 72 9360 72 9365 User Manual Vertical Model 72 9365 72 9360 72 9355 A D converter A D 8 bit resolution 5mV div 50 V div at input BNC Range V div Displacement range 10 div Analog bandwidth 200MHz 100MHz 60MHz Single bandwidth 200MHz 100MHz 60MHz Selectable analog bandwidth limit Typical 20MHz Low frequency response AC coupling 3dB lt 10Hz at BNC Rise time SL 8 ns lt 2 3ns lt 3 5ns lt 4 3ns lt 5 8ns lt 8 7ns lt 14ns DC gain accuracy When vertical sensitivity is 5mV div 4 sampling or average sampling mode When vertical sensitivity is 10mV div 50V div 3 sampling or average sampling mode DC measurement accuracy average sampling When vertical shift is zero and N gt 16 4 x reading 0 1 div 1mV and 5mV div is selected 3 x reading 0 1 div 1mV and 10mV div 50V div is selected When vertical shift is not zero and N gt 16 3 x reading vertical shift reading 1 x vertical shift reading 0 2 div Set from 5mV div to 200mV div plus 2mV Setup value gt 200mV div to 50V div plus 50mV Voltage difference AV measurement Under identical setup and environmental conditions the voltage difference AV between accuracy average sampling mode two points o
68. wartting for read file 0k E23 The package s model No isn t same with this DSO Please read user manual get system infomation in detail Figure 5 11 Figure 5 12 7 If the model of the program upgrade pack is incompatible with the oscilloscope the prompt in Figure 5 12 will appear Program upgrade pack and product model incompatible Please read the user manual and check the oscilloscope model in system information under the utility menu You should download an upgrade pack which corresponds with your oscilloscope model Remove the USB device and reboot Figure 5 12 8 Ifthe hardware version of the program upgrade pack is incompatible with the oscilloscope the prompt in Figure 5 13 will appear Hardware version of program upgrade pack incompatible with oscilloscope Please read the user manual and check the hardware version in system information under the utility menu You should download an upgrade pack which corresponds with your oscilloscope hardware version Remove the USB device and reboot 35 TENMA Figure 5 13 72 9355 72 9360 72 9365 User Manual Welcome you are using USB Update program V3 2 Welcome you are using USB Update program 3 2 Please waitting for read file 0k Please waitting for read file Ok E24 The packages hardware Ver isn t same with this D50 E26 Sorry this package s version is too low to update Please read user manual get system infomation in detail Please read user manual
69. waveform data AUTO The oscilloscope is in automatic mode and acquiring waveform with no trigger SCAN The oscilloscope is continuously acquiring and displaying waveform in the scan mode 5 The reading of time distance between the trigger point and the center graticule is displayed here 6 This icon indicates the power supply mode 1 e mm Battery power DC adaptor power 7 The sign on the screen indicates the ground level reference point of the waveform If there 1s no sign it means the channel is not on 8 10X This icon indicates the channel probe ratio is set to 10 times In operation probe ratio must be set to 10X if you wish to set the oscilloscope channel menu accordingly Otherwise the measurement voltage amplitude will be increased 10 times Bw This icon indicates the channel bandwidth is restricted 9 M value indicates the main time base mode and the applicable time base range 2 General Inspection We suggest checking your new oscilloscope in the following steps 1 Check the unit for possible shipping damages If the package carton or foam plastic protective lining is seriously damaged please contact your Tenma dealer 2 Check the accessories A checklist of accessories that come with your oscilloscope is provided in the section Accessories of this user manual Please check any missing items against this list If any item is missing or damaged please contact your Tenma dealer 3 Thorough inspection of the en
70. y charge for parts or labor or replace 1t with another product at the discretion of the dealer The Tenma dealer may use parts modules and replacement products that are brand new or repaired to a good as new standard All old parts modules and products that are removed during replacement become properties of the Tenma dealer In this User Manual customer means an individual or entity vested with the rights hereunder To enjoy the warranty service the customer must report any defect to your dealer during the valid warranty period and make appropriate arrangement to allow servicing The customer should pack the defective product in a container and deliver it to a maintenance centre specified by their dealer The customer should also prepay all freight cost and provide a copy of the original sales receipt issued to the original purchaser If the product is to be delivered to an address within the country where the maintenance centre operates the Tenma dealer shall pay the cost of returning the product to the customer If the product is to be delivered any other destination all freight custom duty tax and other costs will be paid by the customer This warranty does not apply to any defect malfunction or damage caused by accident normal wear and tear of mechanical parts any form of application other than the stated ones improper use improper maintenance or poor maintenance Under the warranty terms and conditions Tenma or your Tenma
71. you get the desired waveform display that meets observation and measurement requirements See the figure below 29 TENMA Acquisition mode Parameter measurement Display Frequency counter Off Figure 3 5 Signal noise suppressed 72 9355 72 9360 72 9365 User Manual TRIG EO Figure 3 5 Caution In the average acquisition mode the waveform display will update at a slower rate This is normal Illustration 5 Using cursors for measurement Your oscilloscope can measure 27 waveform parameters automatically All auto parameters can be measured with the cursors By using cursors you can quickly measure the time and voltage of a waveform Measuring the width of a single pulse within the pulse signals To measure the width of a single pulse within the pulse signals follow the steps below 1 Press CURSOR to display the cursor measurement menu 2 Press F1 to set cursor type to time 3 Move cursor 1 to the rising edge of the single pulse with the jog dial 4 Press the jog dial to select cursor 2 then turn the jog dial to move cursor 2 to the 2 peak value of the single pulse The A value will be displayed in the cursor menu 1 e the width of that pulse as shown in the figure below Cursor TRIGED Time Status Channel B Co movement Off Figure 3 6 Measuring pulse width with the cursors Figure 3 6 Note When using the cursor to measure voltage follow step 2 only and set the cursor type to voltage Il

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