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THS710A, THS720A, THS730A & THS720P TekScope™ User Manual

1. 2 52 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples Setup to Use Motor Trigger pve SCOPE AUTO RANGE TRIGGER Trigger Type Motor MENU Adjust the TRIGGER LEVEL for a stable display You can use motor trigger to stabilize the display of complex pulse width modulated motor drive waveforms Going Further You can use the horizontal MAG function to get a closer look at the motor drive waveform To get an even closer look at a pulse in the waveform place vertical cursors around the pulse of interest and use the delayed time base nimun UFII METER HAUNT MILIINUFI TOGGLE Wau ANA MILIINUFII a C ma SCOPE CURSOR Cursor Set cursors Function to pulse of interest HORIZON Set Delay TAL MENU With Cursor V Bars THS710A THS720A THS730A amp THS720P User Manual 2 53 Power Measurement Application Examples 2 54 THS710A THS720A THS730A amp THS720P User Manual E Reference FSS Introduction to Reference This chapter contains detailed information about the operation of the THS710A THS720A THS730A and THS720P TekScope instruments The topics in this chapter are arranged alphabetically by button name Reference Topic Page Acquire 3 3 Autorange 3 8 Cursor 3 11 Display Harmonics 3 13 Hard copy 3 22 Hold 3 26 Horizontal contr
2. Going Further You can use the external trigger input to trigger on a 50 Hz or 60 Hz AC power line This leaves the two channel inputs free to probe other circuits that are synchronized to the AC power line Set the external trigger level to 0 2 V to trigger as close as possible to a zero crossing THS710A THS720A THS730A amp THS720P User Manual 2 29 General Purpose Application Examples Analyzing a Serial Data Communication Link You are having intermittent problems with a serial data communica tion link and you suspect poor signal quality Set up the TekScope instrument to show you a snapshot of the serial data stream so you can verify the signal levels and transition times ifa qnypopopgooopoooo0ro000000000000000 Ifa A nrap00000000000pp000n00o0n00a0p000n0nn0nna 0000000000000 ooo Qoooooooooo0o00c Q000000000000000000000000000 G ath 7 Ooo000000000o00 00000000000 oonAnoABoAAADAAgHAAnRo ooo0ooo0o00o00000000000000002d02002u02u02u02u2g0u02gu000000o00 2 30 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Capture a Single Shot MILUINUFIL simcinuei METER ASA MTLIINUHI TOGGLE MAUAINA MILIUMUHI O Ad SCOPE MIILIINUFII bay SCOPE
3. Holdoff Holdoff Holdoff Triggers are not recognized during holdoff time NOTE For best results choose Normal trigger mode when using long holdoff settings 10 ms or greater THS710A THS720A THS730A amp THS720P User Manual 3 57 TRIGGER Controls 3 58 Pulse Trigger Use Pulse triggering to isolate and display specific events that you can qualify by time TL Cc TE TRIGGER Trigger Type MENE Trigger Source Chl Ch2 Polarity amp Positive Set width Width Negative Trigger When Less Than Width Greater Than Width Equal To Width Set Not Equal To Width Mode amp Holdoff Auto Normal Trigger Conditions You can trigger on the following conditions Key Points m Less Than Width triggers on a pulse width that is less than the time threshold m Greater Than Width triggers on a pulse width that is greater than the time threshold THS710A THS720A THS730A amp THS720P User Manual TRIGGER Controls m Equal To Width triggers on a pulse that matches the set pulse width within a given tolerance Use the rocker to set the tolerance in percent For example if the pulse width is set to 1 us and the tolerance is set to 20 triggering occurs only on pulse widths in the range from 800 ns to 1 2 us m Not Equal To Width triggers on a pulse that does not match the set pulse width and tolerance Use the rocker to set the tolerance
4. 3 For each range set the resistance standard to the resistance listed below and then compare the meter reading to the accuracy limits Resistance Standard Range Setting Accuracy Limits 400 Q 360 Q 358 0 Q to 362 0 Q 4 kQ 3 6 KQ 3 580 KQ to 3 620 KQ 40 KQ 6 kQ 5 95 kQ to 6 05 kQ 40 KQ 36 KQ 35 80 KQ to 36 20 KQ 400 KQ 360 KQ 358 0 KQ to 362 0 KQ 4MQ 3 6 MQ 3 580 MQ to 3 620 MQ 40 MQO 36 MQO 35 23 MQ to 36 77 MQ These limits apply only when the relative humidity is lt 60 This completes the performance verification procedure THS710A THS720A THS730A amp THS720P User Manual D 23 Appendix D Performance Verification D 24 THS710A THS720A THS730A amp THS720P User Manual ed Appendix E General Care and Cleaning General Care A Protect the TekScope instrument from adverse weather conditions The instrument is not waterproof Do not store or leave the instrument where the LCD display will be exposed to direct sunlight for long periods of time CAUTION To avoid damage to the TekScope instrument do not expose it to sprays liquids or solvents Cleaning Inspect the TekScope instrument as often as operating conditions require To clean the instrument exterior perform the following steps 1 Remove loose dust on the outside of the instrument with a lint free cloth Use care to avoid scratching the clear plastic display filter 2 Use a soft cloth or paper towel dampened with water to clean
5. Pretrigger Display T at On Trig Pt Off Set Delay With Cursor V Bars THS710A THS720A THS730A amp THS720P User Manual 3 27 HORIZONTAL Controls Key Points SEC DIV Rocker If waveform acquisition is stopped using the HOLD button changes you make to the time base have no effect until you restart acquisition Roll Mode Display To obtain a rolling display similar to a strip chart recorder select Auto trigger mode and set SEC DIV to 500 ms div or slower POSITION Rocker You can position each of the two reference waveforms Ref A and Ref B independently of the three live waveforms Ch 1 Ch 2 and Math Or you can set the horizontal position of all waveforms track each other Refer to Ref A or Ref B Vertical Menu on page 3 71 for information about this capability MAG Button To switch between the normal and magnified displays press the MAG button m Normal display compresses the 2500 point waveform by a factor of ten to form 250 horizontal points in the display m Magnified display expands the horizontal scale by a factor of ten and displays one waveform point per pixel m Use the POSITION rocker to choose the section of the waveform to magnify The horizontal position indicator shows you the location of the magnified segment in the full waveform record ea pe MAG off MAG on 3 28 THS710A THS720A T
6. Electric motor with attached tachometer Tachometer signal Ch 1 Motor current Ch 2 2 50 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples Setup to Trigger at 1200 RPM pve Mes 3 2 aes CH 2 Probe Type Current Set to Probe 100 mV A HORIZON Trigger 50 TAL MENU Position TRIGGER Trigger Type Pulse GSE inner Tipe Mee Trigger Chl Source Polarity and Positive Set width to Width 250 us Trigger When Equal To Set 5 Width CURSOR Cursor Paired Set cursor to Function horizontal center of graticule Set appropriate VOLTS DIV for each channel Set SEC DIV so that the sweep duration is approximately equal to the motor start up time When the motor starts the 1200 RPM point is displayed at the center of the graticule Use the cursor on channel 2 to measure the armature current at this point Going Further Change the trigger pulse width setting to trigger at other specific motor RPMs to complete the test THS710A THS720A THS730A amp THS720P User Manual 2 51 Power Measurement Application Examples Triggering on a Motor Drive Waveform THS720P You need to analyze the output waveform of a variable speed AC motor drive Connect the TekScope instrument to trigger on the output waveform of the motor drive
7. Duty Over Width Rise RMS Definition Measurement of the first cycle in the waveform Negative Width Pend O UA Negative Duty Cycle Measured over the entire waveform Low Min b Amplitude mee Negative Overshoot Measurement of the first negative pulse in the waveform The time between the 50 amplitude points Measured over the entire waveform Amplitude Max Min Time it takes for the first complete signal cycle to complete in the waveform Measured in seconds Measurement of the first cycle in the waveform Positive Width x 100 Positive Duty Cycle Period Measured over the entire waveform Positive Overshoot Matin x 100 Amplitude Measurement of the first positive pulse in the waveform The time between the 50 amplitude points Time that the leading edge of the first pulse in the waveform takes to rise from 10 to 90 of its amplitude The true Root Mean Square voltage over the entire waveform THS710A THS720A THS730A amp THS720P User Manual MEAS Measurements in Meter Mode pau TOGGLE MILI UFII mua O B a g METER MEAS Select Statistic Max for DMM Avg Min RelA Max Min Remove Statistic Choose statistic Statistic All Statistics Beep New On Max Min Off OK Select Statistic OK Remove Statistic Data Included in Statistics The statistics are calculated over all meter readings since the last reset The stati
8. Oscilloscope Specifications Cont Voltage and Current Harmonics THS720P Number of Harmonics First 31 harmonics of signal with fundamental frequency between 30 Hz and 450 Hz Harmonics Amplitude Accuracies below are stated as a percent of the fundamental Accuracy amplitude and are valid only if peak to peak amplitude is gt 4 divisions and number of averages gt 16 Fundamental 12 21 22 31 Harmonics Phase Fundamental 12 21 22 31 THD F Measurement Total harmonic distortion relative to the fundamental amplitude THD F aF V at Aus Ai V A THD F Accuracy 4 THD R Measurement Total harmonic distortion relative to the RMS amplitude THD R sf ii W r n SA Vaus Arus THD R Accuracy 4 Frequency Accuracy 0 2 of reading A 8 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications Oscilloscope Specifications Cont Power Measurements THS720P True Power Measure wk eni W R measured over an integral number of cycles that contain n sample points Apparent Power Mea VA Vane X Apus surement Reactive Power Mea YAR VA W surement Power Measurements 4 at the BNCs not including probe uncertainty Accuracy PF Measurement true power W Power factor PF apparent power VA Measurement is the phase difference between the fundamental components of voltage and current Positive angle means voltage leads current Negative angle mean
9. Trigger Location The T symbol shows where triggering occurs for the four trigger conditions Triggers when less than width setting Triggers when equal to width setting mar Tolerance setting Triggers when greater than width setting OA T Triggers when not equal to width setting ee T T UY Tolerance setting THS710A THS720A THS730A amp THS720P User Manual 3 59 TRIGGER Controls 3 60 Video Trigger Choose video triggering to trigger on a specific line in the odd or even field or on all the lines of an NTSC PAL or SECAM standard video signal Also you can trigger on nonstandard video signals with scan rates up to 65 kHz MILIINUFII TAUA a TRIGGER Trigger Type nee Trigger Source Chi Ch2 Trigger On Odd Field Set line number Even Field Any Field Lines Video Class NTSC PAL SECAM Custom Scan Set scan rate Rate Mode amp Holdoff Auto Set holdoff Normal Sync Pulses When you choose Video the trigger always occurs on negative going sync pulses If your video signal has positive going sync pulses invert the signal using the vertical menu Refer to VERTICAL Controls on page 3 68 for information about inverting a signal Key Points THS710A THS720A THS730A amp THS720P User Manual TRIGGER Controls Motor Trigger THS720P Choose motor triggering to trigger on the rising or falling edge of
10. narrow glitches the waveform displayed will vary depending on the acquisition mode you choose Le wl ek Sample Peak Detect Envelope Average Single Acquisition Sequence The content of a single acquisition sequence depends on the acquisition mode Acquisition Mode Single Acquisition Sequence Sample or Peak Detect One acquisition of each displayed channel Envelope or Average N acquisitions of each displayed channel N is user adjustable 3 6 THS710A THS720A THS730A amp THS720P User Manual ACQUIRE Acquire Menu in Meter Mode METER rete MIALIIMUFII TAUMANA SCOPE i METER ACQUIRE Acquire Mode Sample Peak Detect Average On Reset A off Acquisition Modes The data logger compresses a sequence of meter measurements into a point and then plots a series of those points to form a graph The acquisition mode determines how the graph is calculated Key Points m For each point Sample displays the first meter measurement from the sequence m Peak Detect displays a column representing the maximum and minimum meter measurements during the sequence m Average displays the average of all meter measurements during the sequence
11. 1 Choose 2 Press this 3 Press this 4 Pressthe 5 Use the scope mode button onthe bezel button bezel button rocker to or meter front panel again until set the value mode this selection fora parame is highlighted ter vi THS710A THS720A THS730A amp THS720P User Manual Getting Started ey es Getting Started In addition to a brief product description this chapter covers the following topics m How to change the battery pack How to use external power m How to use the tilt stand m How to perform a quick functional check Product Description The THS710A THS720A THS730A and THS720P TekScope instruments combine a two channel oscilloscope and a digital multimeter DMM in a rugged handheld package General Features m Battery power or external power m High resolution high contrast display with temperature compensation for clear visibility over a wide temperature range m Onboard waveform data and setup storage m RS 232 communication port to load setups download wave forms and make hard copies m Fully programmable through the RS 232 communication port THS710A THS720A THS730A amp THS720P User Manual 1 1 Getting Started Oscilloscope Features The TekScope instrument is a powerful two channel oscilloscope with the following features Autoranging for quick setup and hands free operation 200 MHz THS730A 100 MHz THS720A and THS720P or 60
12. Appendix D Performance Verification Performance Verification Procedures Before beginning these procedures two conditions must first be met m The TekScope instrument must have been operating continuously for ten minutes in an 18 C to 28 C ambient environment with a relative humidity of less than 60 m You must perform the Compensate Signal Path operation described on page 2 11 If the operating temperature changes by more than 5 C you must perform the Compensate Signal Path operation again The time required to complete the entire procedure is approximately one hour WARNING Some procedures use hazardous voltages To prevent electrical shock always set voltage source outputs to O V before making or changing any interconnections D 4 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification Self Test This procedure uses internal routines to verify that the TekScope instrument functions and passes its internal self tests No test equipment or hookups are required Start the self test with the following setup MITES UPI NUF WAU ANA WAU ANT B q Wau ania OK Run Test A dialog box displays the result when the self test completes Press the CLEAR MENU button to continue operation THS710A THS720A THS730A amp THS720P User Manual D 5 Appendix D Performance Verification AA Check DC Measurement Accuracy 1 Set the DC voltage s
13. In This Manual The following table shows you where to find information in this manual If you are looking for Turn to Product overview Product Description on page 1 1 Details about a product feature Reference on page 3 1 Look up the front panel button for the feature Application examples General Purpose Application Exam ples on page 2 15 and Power Mea surement Application Examples on page 2 35 Operation instructions Understanding the Front Panel on page 2 1 Information about battery operation Changing the Battery Pack on page 1 5 Information about using external Using External Power on page 1 7 power Information about making a hard copy HARD COPY on page 3 22 Technical specifications Specifications appendix on page A 1 Recommended accessories Accessories appendix on page C 1 THS710A THS720A THS730A amp THS720P User Manual V Preface Conventions TekScope instrument setups are shown in tables The Operaing Basics and Performance Verification sections use tables to show specific setups The Reference section uses similar tables to show the complete contents of the menu system The header of each table contains icons that represent the controls and menu items used to set up the instrument To make a specific setup read the table from left to right and then from top to bottom as shown below The table contains the symbol if no action is required WAU ANN q amp m
14. Key Points SEC DIV Rocker To adjust the scroll speed of the data logger plot use the SEC DIV rocker If you change the scroll speed data in the logger display is erased Other Controls The POSITION rocker and MAG button have no effect in meter mode 3 30 THS710A THS720A THS730A amp THS720P User Manual MEAS MEAS You can use the MEAS button to access the automatic measurement capability of the TekScope instrument In scope mode the instrument measures the 2500 point selected waveform In meter mode the measurements take the form of statistics which are calculated from successive meter readings Measurements in Scope Mode METER fee MILI UF Tau ALA eee m MEAS Select six pages of Meastmnt measurements Remove Measrmnt Choose Measrmnt measurement All Measrmnts Gating amp High Measurement Low Setup Gating High Low Histogram Method Min Max OK Select Measrmnt OK Remove Measrmnt THS710A THS720A THS730A amp THS720P User Manual 3 31 MEAS Key Points Choosing Measurements You can perform up to four automatic measurements on the selected waveform and display them along the right side of the graticule The table beginning on page 3 35 describes the scope mode measurements in detail Power Measurements THS720P Refer to page 3 20 for information about power measurements Tek Run SOOMS s Average Git Ee 0 000 Y
15. Rel A Measurements Rel A acquires a new baseline value for subsequent DMM measurements Use Rel A to store the current DMM value and then measure the relative change from that value When you turn off Rel A the baseline value resets to zero THS710A THS720A THS730A amp THS720P User Manual 3 7 AUTORANGE AUTORANGE Autorange automatically adjusts setup values to track a signal If the signal changes the setup continues to change to track the signal Autorange works independently in scope and meter modes Refer to page 3 16 for additional autorange information for the THS720P The following controls are preset when you first select the autorange function Scope Mode Meter Mode Acquire mode Sample none Stop acquire after HOLD button only Vertical coupling DC if GND was Selected Bandwidth Full Invert Off Horizontal position Centered Horizontal magnification Off Trigger type Edge Trigger source Lowest numbered channel displayed Trigger coupling DC Trigger slope Positive Trigger holdoff Minimum Display style Vectors Display format YT 3 8 THS710A THS720A THS730A amp THS720P User Manual AUTORANGE These conditions start an autorange cycle Scope Mode Too many or too few waveform periods for a clear display of the lower numbered channel Waveform amplitude too large or too small compared to full screen if only one channel is displayed Waveform amplitude too large or too small
16. Use the vertical POSITION rocker to move the zero level Reference Level If the RelA function is turned on the RelA baseline value is marked along the left side of the graticule VOLTS DIV Rocker Use the VOLTS DIV rocker to set the meter range and control the vertical scale of the data logger plot If you change the vertical scale while the data logger is running you will cause a vertical discontinuity old data is not rescaled to match the current setting However if you change the vertical scale while the HOLD function is active the entire waveform is scaled to match the current setting SEC DIV Rocker Use the SEC DIV rocker to control the scroll speed of the data logger plot When you change the scroll speed existing data in the data logger plot is erased Zoom You can vertically enlarge the data logger plot around the center of the screen for the VDC function and around the bottom of the screen for other functions The zoom feature allows you to see the full vertical resolution of the meter Use the vertical POSITION rocker to move the plot before choosing Zoom Then choose Zoom in the Vertical Menu to set the zoom factor refer to page 3 72 If you change the range or function the plot position and size are reset to their default values THS710A THS720A THS730A amp THS720P User Manual 3 43 METER Mode Bar Graph The rapid update rate of the bar graph simulates an analog meter movement The bar graph is displ
17. amp THS720P User Manual 3 25 HOLD HOLD 3 26 Press the HOLD RUN STOP button to stop and start data acquisition Because scope mode and meter mode have independent acquisition states the HOLD button operates independently for these two modes Hold Function in Scope Mode In scope mode the function of the HOLD button depends on the Stop After selection in the acquire menu Functions of HOLD Button First press stops waveform acquisi tion Acquire Menu Setting Stop After HOLD Button Only Second press restarts waveform acquisition Stop After Single Acquisition Sequence Any press starts a new acquisition sequence The acquisition sequence stops automatically Hold Function in Meter Mode In meter mode pressing the HOLD button once freezes the meter reading the measurement statistics MIN MAX and AVG and the data logger display A second press of the HOLD button resets and restarts the data logger display and measurement statistics and then restarts the meter readings THS710A THS720A THS730A amp THS720P User Manual HORIZONTAL Controls HORIZONTAL Controls You can use the horizontal controls to change the time base horizontal position and horizontal magnification of waveforms EE HORIZONTAL MENU POSITION SEC DIV E Uk Horizontal Operations in Scope Mode MILUINUFII best WAU ANN SCOPE HORIZON Time Base Main Set to 50 Set to 90
18. attenuation GND Coupling Use GND coupling to display a zero volt waveform When you use GND coupling the input BNC connector is disconnected from internal circuits Internally the channel input and its reference are connected to create a zero volt reference level Key Points VOLTS DIV Rocker Use the VOLTS DIV rocker to change the vertical sensitivity when acquisition is running When acquisition is stopped the rocker scales the waveform vertically THS710A THS720A THS730A amp THS720P User Manual 3 69 VERTICAL Controls Math Vertical Menu The vertical menu contains the following items when Math is the selected waveform WAU AU hi SCOPE VERTICAL Math Operation Chl Ch2 Chl Ch2 Ch2 Chl Chl x Ch2 Key Points Math Waveform Units The waveform math function recognizes the following combinations of units Channel 1 Resulting Unit Unit Operation Math Unit Ce C Cc i i i VOLTS DIV Rocker Use the VOLTS DIV rocker to scale the wave form vertically The rocker does not affect channel or channel 2 sensitivity 3 70 THS710A THS720A THS730A amp THS720P User Manual VERTICAL Controls Ref A or Ref B Vertical Menu The vertical menu contains the following items when Ref A or Ref B is the selected waveform METER VERTICAL Save Chl To Wa Choose wave MENU Save Ch form location Save MATH Horizontal Posit
19. measuring harmonic current 2 44 measuring motor startup current 2 48 measuring power 2 38 2 46 measuring propagation delay 2 22 measuring resistance 2 18 monitoring power quality 2 40 testing switching transistor 2 36 triggering on external signal 2 28 triggering on missing pulse 2 24 triggering on motor drive wave form 2 52 triggering on motor RPM 2 50 triggering on video signal 2 32 automatic measurements 3 3 1 AUTORANGE button 2 6 turning off 3 10 turning on 3 8 average Statistic 3 38 averaging 3 3 backlight 3 65 bandwidth limit 3 69 bar graph 3 44 battery capacity 1 6 charging 1 6 external charger C 3 low battery indicator 1 6 replacing 1 5 beep 3 38 burst width measurement 3 35 buttons using 2 1 2 6 C cleaning E 1 CLEAR MENU button 2 7 connectors 1 4 continuity 2 19 contrast display 3 13 conventions vi coupling trigger 3 56 vertical 3 69 current probe description C 4 scale factor 3 69 using 2 38 2 50 3 15 THS710A THS720A THS730A amp THS720P User Manual Index 1 Index CURSOR button 2 5 3 11 cursors application example 2 22 readouts 3 12 3 41 using 3 11 cycle mean measurement 3 35 cycle RMS measurement 3 35 D data logger application example 2 40 display 2 7 3 42 position 3 43 3 73 saving and recalling 3 47 scroll speed 3 30 zoom 3 43 3 73 dB and dBm scale 3 73
20. performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix shipping charges prepaid and with a copy of customer proof of purchase Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE LISTED PRODUCTS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
21. press the Signal Path and OK Compensate Signal Path buttons to confirm that you are ready to proceed This procedure takes about one minute to complete Factory Scope and Factory DMM Service personnel use these functions to calibrate the oscillscope and DMM internal voltage references Refer to your Tektronix field office or representative for assistance with these processes 3 66 THS710A THS720A THS730A amp THS720P User Manual UTILITY Diag System VETER m MIMLIINUFII MILIIMUHI ATE SCOPE SCOPE or UTILITY METER Execute eects Once Always Until Fail Error ErorLog a Run Test OK Display Log Key Points Starting Diagnostics To execute the built in diagnostic routines disconnect all cables probes or leads from the oscilloscope and DMM inputs and then press the OK Run Test button Stopping Diagnostics Choose how you want the diagnostic routines to execute m Loop Once runs all diagnostic routines one time and then stops Loop Always runs the diagnostic routines continuously Press HOLD and then CLEAR MENU to resume normal operation Loop Until Fail runs the diagnostic routines until the TekScope instrument fails a test or until you cycle the power Error Log The error log contains summary data gathered over the life of the TekScope instrument and descriptions of the last 100 errors encountered The last error in the list is the most recen
22. spare battery and manuals J A621 and A622 Current Probes Two Tektronix current probes extend the TekS cope instrument to handle current and power measurements These clamp on probes do not require disconnections to insert them into the circuit Both current probes have BNC connectors for the oscilloscope channels and include safety banana jack adapters for use with the DMM A621 AC only 2 000 A max 5 Hz to 50 kHz selectable output at 1 10 or 100 mV A A622 AC or DC 100 A max DC to 100 kHz selectable output at 10 or 100 mV A C 4 THS710A THS720A THS730A amp THS720P User Manual Appendix C Accessories Optional Accessories Cont A605 and A610 Current Probes These busbar style current probes have banana plug connectors to measure current using the DMM A605 AC only 500 A max 48 Hz to 1 kHz 1 mV A A610 AC or DC 500 A max DC to 440 Hz 1 mV A P6408 Word Recognizer Trigger Probes A The P6408 is a 16 bit word recognizer probe for TTL logic RAN operating at clock rates up to 20 MHz This probe is used for trigger event recognition only not logic signal display WaveStar is a Windows application that helps interface the TekS cope instrument to your PC You can upload and download waveforms and setups You can export acquired data to Spreadsheets for further analysis to word
23. 51 for more information Graticule Area The graticule area contains a bargraph of the harmonics To display the harmonic content of the voltage waveform press CH 1 To display current harmonics press CH 2 Fundamental Harmonics THS710A THS720A THS730A amp THS720P User Manual 3 19 DISPLAY HARMONICS Power Measurements THS720P When you press the MATH button the TekScope instrument displays instantaneous power measurements based on the voltage and current waveforms In the box the instrument calculates power statistics that accumulate from the beginning of the acquisition Math Wo 26 23 w PF 0 96 VA 47 07 va DPF 0 89 VAR 39 09 var 8 28 Average Minimum Maximum Wo 20 6 w 26 16mw 26 26 w VA 4Bi2va 4 719 va 47 33 va VAR 38 39 van 4 719 var 39 37 var V 1179y Wey 11839 3J2ma 3J Jfma 400 5ma Power Measurements Explanation W True power VA Apparent power VAR Reactive power PF True power factor of the voltage and current waveforms DPF Displacement power factor of the voltage and current waveforms 8 Phase difference between the voltage and current waveforms Refer to page A 9 for more detail about the power measurements and calculation methods 3 20 THS710A THS720A THS730A amp THS720P User Manual DISPLAY HARMONICS Display Menu in Meter Mode METER DISPLAY Key Points Line Style Display Contrast ee Thin MILI UL MAHMUR HAUATA MIILII
24. Adjusts vertical position of oscilloscope waveform and DMM data logger display 11 WAVEFORM OFF 3 Removes selected oscilloscope waveform from display 12 VOLTS DIV Adjusts oscilloscope vertical scale factor or meter range 13 ON STBY Selects on or standby Does not disconnect power from the instrument 14 CH 1 CH 2 MATH REF A REF B fV Displays waveform and chooses selected waveform In harmonics mode THS720P CH 1 and CH 2 also display harmonics of voltage and current waveforms MATH displays power measurements 15 SCOPE Selects scope mode 16 METER Selects meter mode THS710A THS720A THS730A amp THS720P User Manual 2 7 Functional Overview Using Scope Mode Press the front panel SCOPE button to enter scope mode Then a J press AUTORANGE to set the vertical horizontal and trigger automatically for a usable display The scope mode display shown below is divided into four sections Refer to SCOPE Mode on page 3 48 for a description of each section Status line Tek Run SOOMS s Sample D Ga 0 000 voc chd width 204 805 Graticule Heie eiee cipk pk Measurement area pei ER Sa EET seom readout area fi 200m ch2 1 V Sons chi 460m Waveform readout lines 2 8 THS710A THS720A THS730A amp THS720P User Manual Functional Overview Using Meter Mode Press the front panel METER button to enter meter mode Press one of the bezel buttons to choose a meter functio
25. DC coupling positive slope auto mode and minimum holdoff m The vertical horizontal and trigger settings are controlled by the autorange function m The acquisition mode is set to Average 16 THS710A THS720A THS730A amp THS720P User Manual DISPLAY HARMONICS THD Calculation Choose THD Method to specify whether Total Harmonic Distortion is calculated relative to the fundamental or to the RMS of the input signal Harmonics Display THS720P Press CH 1 to display the voltage harmonics or press CH 2 to display the current harmonics The harmonics display shown below is divided into five sections The next three pages identify the content of each section in detail Status line Tek Run 25kSfs Average DOT Ej Selected 3rd Harmonic chi Harmonic THD R 6 1 BMS 117 8 V measurements ard Harmonic Fund Freq 180 Hz hBMS 3 Phase 387 1 Freg 60 01 Hz Measurement WIPk Pk readout area Graticule area 50V B ch 200m4 By M 10ms chiz 4 100 wW Waveform readout lines Press MATH to display the power measurements Refer to Power Measurements on page 3 20 for more information THS710A THS720A THS730A amp THS720P User Manual 3 17 DISPLAY HARMONICS 3 18 Status Line The status line across the top of the display contains acquisition and trigger information similar to scope mode display Refer to page 3 49 for more information The harmonics indicator s
26. Setup to Measure Harmonic Current ae OS ee E All from Select F to 11 Tonens for T Probes Ch 2 Probe Set to 100 mV A The TekScope instrument shows a bar graph display of the harmonic current in the neutral conductor You can verify whether or not the large third harmonic caused by the nonlinear load exceeds the current rating of the neutral conductor Going Further You can change the display scale to see the harmonics you are interested in Use the Show item in the display menu to select odd harmonics only even harmonics only or all harmonics up to the 31st harmonic THS710A THS720A THS730A amp THS720P User Manual 2 45 Power Measurement Application Examples Taking Power Measurements THS720P In a manufacturing plant the load on a particular branch circuit varies depending on the state of a process You want to monitor the power supplied to this circuit over several days to measure the minimum and maximum load 100 mV A Tek pane 25kS 5 Average DG Math W 956 4 0 PF 0 84 VA 1 13 kva DPF 0 84 VAR 614 3 var 8 33 Average Minimum Maximum W 846 50 59150 1 123kw VA 1 248kva 1 128kva 1 418kva VAR 813 6 vae 301 7 van 1288kvae Yo 120 14 1199 120 39 A 04 940 11 84 chi 504 By ch2 SA BM Toms chi 1284 Math 2k 2 46 THS710A THS720A THS730A amp THS720P Use
27. WAU ANT e AUTO RANGE ACQUIRE Stop After Single Acquisition Sequence HOLD RUN STOP Each time you press the HOLD RUN STOP button the instrument acquires a snapshot of the digital data stream You can use the cursors or automatic measurements to analyze the waveform or you can store the waveform to analyze later Going Further When you capture a single shot using both channels the two waveforms are always acquired simultaneously After the acquisi tion use the vertical bar cursors to take accurate timing measure ments from one waveform to the other THS710A THS720A THS730A amp THS720P User Manual 2 31 General Purpose Application Examples Triggering on a Video Signal The image quality is poor on a video monitor in a closed circuit security system that uses the NTSC broadcast standard Set up the TekScope instrument to display and trigger on the odd field of the video waveform coming into the monitor S 5 Q terminator Incoming video signal 2 32 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Trigger on the Odd Field pw VERTICAL Probe Type Voltage Set to 1X MENU Probe AUTO RANGE DISPLAY Display Style Dot Set to 100 ms Accumulate T
28. between 599 mV and 601 mV Set the leveled sine wave generator frequency to 200 MHz if you are checking a THS730A 100 MHz if you are checking a THS720A or a THS720P or 60 MHz if you are checking a THS7I10A Press MAG Set the TekScope instrument SEC DIV to 10 ns div 10 Check that the peak to peak measurement is 2425 mV 11 Press MAG 12 Proceed to the next test to check the channel 2 bandwidth THS710A THS720A THS730A amp THS720P User Manual D 9 Appendix D Performance Verification AA Check Channel 2 Bandwidth 1 First check the channel 1 bandwidth using the previous test Then perform these additional steps to check the channel 2 bandwidth AEK TOGGLE HAUMIA C z L TRIGGER Trigger Source Ch2 MEAS Gating amp High High Low Min Max Low Setup Method Select Pk Pk Measrmnt OK Select Measrmnt You may need to press Select Page to display this selection SCOPE CH 1 2 WAVE FORM 2 Connect the TekScope instrument to the leveled sine wave generator as shown below Leveled sine wave 50 Q feedthrough generator terminator Ch2 Output BNC cable D 10 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification oh a ee ae 8 9 Set the TekScope instrument VOLTS DIV to 100 mV div S
29. delayed time base 3 29 AO statistic 3 38 diagnostics 3 67 diode test 2 19 DISPLAY button 2 5 3 13 display contents meter mode 3 39 scope mode 3 48 dots 3 13 E edge trigger how to use 3 56 envelope 3 3 external power connector location 1 4 using 1 7 external trigger how to use 3 56 F factory setup detailed description B 1 recalling 3 46 fall time measurement 3 35 features automatic measurements 2 20 cursors 2 22 data logger 2 40 dot accumulate 2 32 isolated channels 2 12 2 36 overview 1 1 pulse trigger 2 24 2 26 2 50 triggers 3 54 waveform math 2 38 floating measurements application example 2 36 overview 2 12 frequency measurement 3 35 front panel 2 1 2 6 functional check 1 9 G graticule 3 13 H HARD COPY button 3 22 harmonic distortion calculation method 3 17 A 8 harmonics display 3 17 measurements 3 18 menu 3 16 saving and recalling 3 46 setup 3 16 status line 3 18 Index 2 THS710A THS720A THS730A amp THS720P User Manual Index high level measurement 3 35 high voltage warning 2 14 HOLD button 3 26 holdoff 3 57 HORIZONTAL MENU button 2 5 3 27 input protection A 2 A 10 A 11 A 12 inputs 1 4 intensity display 3 13 isolated channels application example 2 36 description 2 12 L line trigger 2 29 losing saved information 1 5 low battery indicato
30. following steps to choose the printer and page layout METER Wu ania MELUINUFII MALIN UFII TAUN Fig W SCOPE MILIINUHI CD MAUAINA SCOPE or UTILITY Hard Copy METER Layout Landscape Portrait Format three pages of formats Select Page OK Select Format The following printer and file formats are supported BMP Microsoft Windows file format Deskjet high resolution printer format DPU 411 II HC 411 thermal printer format DPU 412 thermal printer format EPS Image encapsulated postscript image file format Epson 9 pin and 24 pin dot matrix printer format Interleaf img image object file format Laserjet laser printer format PCX PC Paintbrush monochrome image file format Thinkjet inkjet printer format TIFF tag image file format THS710A THS720A THS730A amp THS720P User Manual 3 23 HARD COPY Making the Connection Use the table below to help you connect the TekScope instrument to your PC or serial printer You must use an RS 232 cable for each device type Adapters not supplied with the TekScope instrument are commonly available at computer supply dealers RJ 45 to 9 pin RJ 45 to 25 pin 9 pin male to 25 pin female to female null male adapter 25 pin male female gender modem adapter adapter adapter standard HC 411 or DPU 411 II printer Thinkjet printer with 24542G cable and 9 pin male gender adapter ae a
31. measurement 3 36 roll mode 3 28 RS 232 adapters C 2 cable 3 24 C 2 hard copy 3 22 pinout A 16 port location 1 4 setting up 3 64 troubleshooting 3 64 RUN STOP button 3 26 S sample 3 3 SAVE RECALL button 2 4 3 45 saved information to prevent loss 1 5 SCOPE button 3 48 scope mode features 1 2 how to use 2 8 SEC DIV rocker meter mode 3 30 scope mode 3 28 selected waveform how to select 3 68 indicator 3 50 self test 3 67 SET LEVEL TO 50 button 2 7 setups factory setup description B 1 saving and recalling 3 45 signal path compensation 2 11 3 66 single acquisition sequence 3 6 3 26 specifications A 1 standby timeout 3 65 statistics readout location 3 41 resetting 3 26 selecting 3 37 status 3 49 STBY See ON STBY T T symbol 3 27 3 29 Tek Secure 3 63 THD calculation method 3 17 A 8 tilt stand 1 8 time base 3 29 time out 3 65 TOGGLE button 3 11 TRIGGER MENU button 2 5 3 54 trigger position 3 29 trigger status 3 49 THS710A THS720A THS730A amp THS720P User Manual Index 5 Index triggering Auto mode 3 56 edge trigger 3 56 external trigger 3 56 motor trigger 3 61 Normal mode 3 56 on AC line 2 29 on glitches 2 27 on missing pulse 2 24 on specific frequency 2 50 on video signal 2 32 pulse trigger 3 58 readout 3 52 setting coupling 3 56 setting hol
32. measurements Refer to page 3 37 for more information You can use the TekScope instrument as a continuity checker With the setup below it beeps when the measured resistance is 50 Q or less typical MITLUINUFIT METER ci TOGGLE MILUMUFIL Tuan C P A q _ SCOPE MITLUINUFIL L HAUAD A METER conti You can also use the TekScope instrument as a semiconductor junc tion checker Use the setup below to measure the voltage drop across the junction The open circuit voltage is limited to about 4 V to prevent damage to reverse biased junctions MIMLIINUFIL METER T mnam uate MILUNUF II Tuas O ziya p SCORE MIMLIINUFIL W HAUAD A METER T THS710A THS720A THS730A amp THS720P User Manual 2 19 General Purpose Application Examples Measuring the Frequency of a Clock Signal You suspect that the frequency of a TTL clock signal is out of tolerance Connect the TekScope instrument to the signal to display it and measure its frequency Ch1 Freq 30 62 MHz 2 20 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Measure Clock Frequency SCOPE AUTO RANGE MEAS Select Frequency Measmnt for Chl OK Select Measrmnt Going Further You can add peak to pe
33. noise by choosing noise rejection Volts Scale If you choose dB the current measurements statistics and logger data are shown in dB If you choose dBm you can set the impedance VOLTS DIV Rocker Use the VOLTS DIV rocker to change the meter range and the vertical scale of the data logger plot POSITION Rocker Use the vertical POSITION rocker to position the data logger plot THS710A THS720A THS730A amp THS720P User Manual 3 73 VERTICAL Controls 3 74 THS710A THS720A THS730A amp THS720P User Manual a Appendices ha ee Appendix A Specifications This appendix contains the oscilloscope DMM and general specifications for the THS710A THS720A THS730A and THS720P TekScope instruments All specifications are guaranteed unless noted as typical Typical specifications are provided for your convenience but are not guaranteed Specifications that are marked with the symbol are checked in Appendix D Performance Verification All specifications apply to all the TekScope instruments unless noted otherwise All specifications assume horizontal MAG is off unless noted otherwise To meet specifications two conditions must first be met m The TekScope instrument must have been operating continuously for ten minutes within the operating temperature range specified m You must perform the Compensate Signal Path operation described on page 2 11 If the operating temperature changes by more than 5 C you must perf
34. power for portable operation later m Charges internal battery pack m Allows extended operation the Standby Time out and Backlight Time out features are automatically disabled when external power is used m Maintains floating measurement capability of the oscilloscope channels and DMM Attach the external power source as shown below The DC INPUT disconnects itself if an overvoltage is applied If this occurs disconnect and then reconnect the AC adapter or cigarette lighter adapter to resume operation from external power External power to DC INPUT 00000 00 CAUTION To avoid overheating do not connect external power while the instrument is in a confined space such as in the soft case THS710A THS720A THS730A amp THS720P User Manual 1 7 Getting Started Using the Tilt Stand A built in tilt stand folds out and snaps back into place when not in use For benchtop use lock the tilt stand in place with the hinged flap To hang the TekScope instrument over a nail rotate the tilt stand 180 You can also extend the hinged flap as shown to hang the instrument from a ladder rung or over the top of a door 1 8 THS710A THS720A THS730A amp THS720P User Manual Getting Started Functional Check After you install batteries or connect external power you can perform this quick functional check
35. processors to integrate with your documentation or to printers and plotters to make hard copies Programmer Manual 070 9751 XX provides information about remote control operation Service Manual 070 9752 XX provides information about maintenence and module level repair THS710A THS720A THS730A amp THS720P User Manual C 5 Appendix C Accessories C 6 THS710A THS720A THS730A amp THS720P User Manual ha ae Appendix D Performance Verification This appendix contains performance verification procedures for the specifications marked with the symbol The following equipment or a suitable equivalent is required to complete these procedures Minimum Description Requirements Examples DC Voltage Source 60 mV to 800 V 0 1 Wavetek 9100 Universal accuracy Calibration System with Oscilloscope Calibration AC Voltage Source 300 mV to 640 V 0 5 Module Option 250 accuracy at 500 Hz Resistance Standard 360 Q to 36 MQ 40 1 Fluke 5500A Mult product Calibrator with Oscilloscope Calibration Leveled Sine Wave Gen 50 kHz to 200 MHz Option Option erator 3 amplitude accuracy 5500A SC Time Mark Generator 10 ms period 50 ppm accuracy Banana to Banana Shielded banana jacks Tektronix Deluxe Meter Cable two required on each end Lead Set ATLDX1 50 Q BNC Cable BNC male to BNC male Tektronix part number 36 in 1 m long 012 0482 XX 50 Q Feedthrough Ter BNC male and female Tektronix part nu
36. the instrument You can use a 75 isopropyl alcohol solution for more efficient cleaning CAUTION To avoid damage to the surface of the TekScope instru ment do not use any abrasive or chemical cleaning agents THS710A THS720A THS730A amp THS720P User Manual E 1 Appendix E General Care and Cleaning E 2 THS710A THS720A THS730A amp THS720P User Manual Glossary and Index ner Glossary t Rocker The general purpose rocker button on the front panel that you can use to set parameters The specific parameter assigned to the rocker depends on other selections AC Coupling A mode that blocks the DC component of a signal but passes the dynamic AC component of the signal Useful for observing an AC signal that is normally riding on a DC signal Acquisition The process of sampling signals from input channels digitizing the samples processing the results into data points and assembling the data points into a waveform record The waveform record is stored in memory Active Cursor The cursor that moves when you adjust the rocker The readout on the display shows the position of the active cursor Aliasing A false representation of a signal due to insufficient sampling of high frequencies or fast transitions A condition that occurs when an oscilloscope digitizes at an effective sampling rate that is too slow to reproduce the input signal The waveform displayed on the oscilloscope may have a lower freq
37. the LCD liquid crystal display Edge Trigger Triggering that occurs when the oscilloscope detects the source passing through a specified voltage level in a specified direction the trigger slope Envelope Acquisition Mode A mode in which the oscilloscope acquires and displays a waveform that shows the variation extremes of several acquisitions External Trigger Triggering that occurs when the oscilloscope detects the external input signal passing through a specified voltage level in a specified direction the trigger slope Floating Measurements Voltage measurements where the reference voltage is not earth ground The two oscilloscope inputs and the DMM input are capable of taking independent floating measurements THS710A THS720A THS730A amp THS720P User Manual Glossary Ground GND Coupling Coupling option that disconnects the input signal from the vertical system Hard Copy An electronic copy of the display in a format useable by a printer or plotter Harmonics Voltage or current waveforms having frequencies that are integer multiples of the base fundamental frequency A periodic waveform can be described as the sum of its fundamen tal frequency and the harmonics Holdoff A specified amount of time that must elapse after a trigger signal before the trigger circuit will accept another trigger signal Holdoff helps ensure a stable display Horizontal Bar Cursors The two horizontal bars that you position
38. the pop up THS710A THS720A THS730A amp THS720P User Manual Glossary Power Factor PF The ratio of true power watts to apparent power volt amperes Pretrigger The specified portion of the waveform record that contains data acquired before the trigger event Pulse Trigger Triggering on events that you can qualify by time The oscilloscope triggers when an incoming pulse width meets time criteria you have defined Record Length The specified number of samples in a waveform Reference Lead The oscilloscope lead attached to the reference voltage in a measurement application Because of the isolated channels the meter common lead and the scope reference leads do not have to be connected to the same reference voltage Reference Waveform A saved wavefrom selected for display You can display two reference waveforms as Ref A and Ref B Rocker A two position button on the front panel used to control functions such as volts division and trigger level THS710A THS720A THS730A amp THS720P User Manual Glossary 7 Glossary Glossary 8 Roll Mode An acquisition mode useful at slow horizontal scale settings Roll mode allows you to view the waveform as it is acquired point by point The waveform appears to roll across the display RS 232 The serial communication port used to connect to a hard copy device computer controller or terminal Sample Acquisition Mode A mode in which the oscilloscope creates a r
39. to measure the voltage parameters of a waveform The oscilloscope displays the value of the active moveable cursor with respect to ground and the voltage value between the bars Isolated Channels The architecture of the oscilloscope and DMM inputs that allow independent floating measurements Each input can have a different reference voltage THS710A THS720A THS730A amp THS720P User Manual Glossary 5 Glossary Glossary 6 Menu A set of labels shown in the display to identify the functions of the bezel buttons The specific menu contents depend on the menu button you press Motor Trigger Triggering on the rising or falling edge of a bipolar motordrive waveform Normal Trigger Mode A mode where the oscilloscope does not acquire a waveform record unless a valid trigger event occurs It waits for a valid trigger event before acquiring waveform data Paired Cursors Two cross shaped cursors that automatically track the vertical values of a waveform when you adjust their horizontal positions The oscilloscope displays the voltage value and time value between the paired cursors Pixel A visible point on the display The display is 320 pixels wide by 240 pixels high Pop Up Menu A submenu of a menu Pop up menus temporarily occupy part of the waveform display area and present choices associated with the menu item selected You can cycle through the options in a pop up menu by repeatedly pressing the menu button underneath
40. topics Understanding the front panel Using scope mode Using meter mode Connecting and using the probes Taking floating measurements You can find specific information about each of the controls in the Reference chapter of this manual Understanding the Front Panel The front panel has buttons for the functions you use most often and menus to access more specialized functions With the autorange feature you can setup the TekScope instrument automatically in both scope and meter modes Using the Menu System To use the menu system follow the steps shown on the next two pages THS710A THS720A THS730A amp THS720P User Manual 2 1 Functional Overview 1 Press a front panel button to display the menu you want to use MENUS HARMONICS O SAVE DISPLAY UTILITY VERTICAL MEE HORIZONTAL E TRIGGER BD j 2 Ca AS CI 2 Press a bezel button to choose a menu item If a pop up menu appears continue to press the bezel button to choose an item in the pop up menu You may need to press the Select Page bezel button to access additional menu items Recall Factory setup Recall Setup 1 factory Save Recall Save Recall OK current Saved thi Saved Recall Setup Setup Waveform Factory 2 2 THS710A THS720A THS730A amp THS720P User Manual Functional Overview 3 Certain menu choices require you to set a numerical parameter to complet
41. you are measuring just one waveform select the Paired cursor function to measure A volts and A seconds at the same time THS710A THS720A THS730A amp THS720P User Manual 2 23 General Purpose Application Examples Triggering on a Missing Data Pulse A positive going TTL data pulse 20 us wide should occur at least once every millisecond The circuit is not working correctly and you suspect an occasional missing pulse Set up the TekScope instrument to find the missing pulse O 00000 0049 O 2 24 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Find Missing Data Pulse TLIN METER niu aie TOGGLE HAUAA MILINUHII O Ad SCOPE MIMLIINUFIL bay HAUAD A RANGE erie p TRIGGER Trigger Type Pulse ENa Trigger Chl Source Polarity and Negative Set width to Width 1ms Trigger When Greater Than Width The TekScope instrument triggers if the signal remains in the low state longer than 1 ms If it does you have found an occurrence of a missing pulse Going Further You can extend this application in several ways m If the pulses are supposed to be periodic 1 ms period and you suspect an occasional extra pulse c
42. you first press MAG you can set a cursor to any point in the 2500 point oscilloscope waveform Cursor Functions H Bars measure voltage V Bars measure time frequency or degrees Paired measures both voltage and time voltage and frequency or voltage and degrees THS710A THS720A THS730A amp THS720P User Manual 3 11 CURSOR Measuring Phase Move the V Bar cursors to the 0 and 360 points and then press the Set 0 and 360 with V Bars button Next move either cursor to the point you want to measure A4 16V 1 78 V Horizontal Bar cursors A 6 12 us 1 06 us Vertical Bar cursors A 6 32 V A 5 86 us 3 16 V Paired cursors Readout For V Bar cursors the readout after the symbol indicates the location of the active cursor relative to the trigger point For degrees measurements the readout is relative to the 0 and 360 points that you set For H Bars or Paired cursors it indicates the location relative to zero volts 3 12 THS710A THS720A THS730A amp THS720P User Manual DISPLAY HARMONICS DISPLAY HARMONICS Press the DISPLAY button to choose how waveforms are presented and to change the appearance of the display In the THS720P TekScope instrument the DISPLAY button is also used to activate harmonics functions Refer to page 3 16 for a description of harmonics Display Menu in Scope Mode MUNUR METER ainn MILINUHI nau ala SCOP
43. 00 1 at frequencies lt 50 MHz measured on MATH Chl Ch2 Common Mode waveform with test signal applied between signal and common Rejection typical of both channels and with the same VOLTS DIV and coupling settings on each channel Channel to Channel gt 100 1 at 50 MHz measured on one channel with test signal Crosstalk typical applied between signal and common of the other channel and with the same VOLTS DIV and coupling settings on each channel Common to Chassis 55 pF Capacitance typical A 2 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications Oscilloscope Specifications Cont Vertical Number of Channels 2 Digitizers 8 bit resolution separate digitizers for each channel sample simultaneously VOLTS DIV Range 5 mV div to 50 V div at input BNC Polarity Normal and Invert Position Range 10 divisions Analog Bandwidth THS710A THS720A THS720P THS730A o P 60MHzat 100MHzat 100MHzat 200 MHzat guaranteed at all otet input BNC input BNC input BNC input BNC settings 90 MHz 90 MHz 180 MHz above 35 C above 35 C above 35 C Peak Detect or Enve THS710A THS720A THS720P THS730A lope Bandwidth typical 25 MS s or slower 50 MHz 75 MHz 75 MHz 85 MHz Analog Bandwidth Selectable between 20 MHz or full Limit typical Lower Frequency Limit lt 10 Hz at BNC reduced by a factor of ten when using a 10X AC Coupled typical passive probe Rise Time at BNC THS710A THS720A TH
44. 119 4812 XX Universal European 119 4813 XX United Kingdom 119 4922 XxX J apan 119 4923 XX THS710A THS720A THS730A amp THS720P User Manual C 1 Appendix C Accessories Standard Accessories Cont RS 232 Cable and Adapter This RS 232 cable set 012 1533 00 includes a 2 m cable with RJ 45 connectors on each end The set also includes a 9 pin adapter 103 0403 00 to connect to PCs The soft case 016 1399 01 protects the TekS cope instrument when notin use The soft case provides compartments for probes one spare battery AC power adaptor and the User Manual The TekS cope instrument includes one User Manual 070 9731 XX and one Reference 070 9741 XX C 2 THS710A THS720A THS730A amp THS720P User Manual Appendix C Accessories Optional Accessories P5102 10X Passive Probes THS730A THS720A and THS710A The P5102 10X passive probes have 100 MHz bandwidth and a CAT II voltage rating of 1000 Vams These probes are suitable for floating measurements up to 600 Vams Deluxe Meter Lead Set The deluxe pair of meter leads ATLDX1 uses a sheathed banana jack interface that is compatible with a variery of probing accessories The deluxe set includes two sharp tips for probing two plunger tips for grabbing component leads one plunger tip for grabbing test points or small conductors and one plunger tip with crocodile jaws for grabbing ter
45. 3 46 when replacing battery 1 5 O ON STBY button 2 7 using 1 5 1 6 overrange indicator 3 40 P P5102 compensating 2 10 description C 1 C 3 specifications A 11 P6117 compensating 2 10 description C 1 specifications A 10 peak detect 3 3 peak to peak measurement 3 36 performance verification D 1 period measurement 3 36 phase measurement 3 12 position data logger 3 43 horizontal 3 28 of reference waveforms 3 71 trigger 3 29 vertical 3 68 positive duty cycle measurement 3 36 positive overshoot measurement 3 36 positive width measurement 3 36 power measurements 2 46 3 20 saving and recalling 3 46 pretrigger 3 29 printing 3 22 probe compensator location 1 4 using 2 10 probe descriptions A605 A610 C 5 A621 A622 C 4 P5102 C 1 C 3 P6117 C 1 P6408 C 5 product description accessories C 1 general 1 1 meter 1 3 oscilloscope 1 2 specifications A 1 pulse trigger application examples 2 24 2 26 2 50 how to use 3 58 Index 4 THS710A THS720A THS730A amp THS720P User Manual Index R readouts cursors 3 12 DMM reading 3 41 3 50 measurements 3 19 3 53 power measurements 3 20 time base 3 52 trigger 3 52 waveform 3 19 3 51 reference lead 2 14 reference waveforms 3 71 Rel A 3 7 reset data logger 3 42 statistics 3 38 resistance 2 18 rise time measurement 3 36 RMS
46. Assurance may not be available in locations outside the United States of America Name VISA or Master Card expiration date or Company purchase order number Address Repair Protection 1 2 or 3 years City State Postal code Calibration Service 1 2 3 4 or 5 years Country Instrument model and serial number Phone Instrument purchase date To learn the location of your nearest Tektronix representative please call 1 800 TEK WIDE in North America 1 503 627 7111 elsewhere or look us up on the World Wide Web at http www tek com SS S Table of Contents General Safety Summary ccc cee ccecceeees iii Preface oc Bes ete s ens E E E e O a a a v In PAS Waal bey fea fe eaaa g cee ack e e eE he Away eG v CONVENTIONS oy zorre aa nena a saan a A O BEES vi Getting Started Product Description lt 46 ae Sare tread oo oS Ree aes 1 1 Replacing the Battery Pack 34 iecd cages antes hue eee ees 1 5 Using External Power a s s09 ee oo ia Gin Ue nanen enre 1 7 Using the Tilt Stand 2 53 gag ah ey eee eh 2 he ee a ee 2 1 8 FuncuonalNCneck ors aisre sir ocd ok OUR AER wale gad 1 9 Operating Basics Functional Overview oes cs e cs soteriwten sew eee seen es 2 1 Understanding the Front Panel 00000 2 1 Using Scope Mode cnvk onic ia wemeese ot emtietun eee ees 2 8 Using Meter Mode casinot Gust ae ote es ia ohn aro eg pia 2 9 Compensating the Oscilloscope Probes 2 10 Compensating the Oscilloscope Sig
47. C and or AC voltage X gt s Electrically insulated case Most bench top oscilloscopes share the above architecture but without the insulated case Without differential preamplifiers or external signal isolators bench top oscillscopes are not suitable for taking floating measurements THS710A THS720A THS730A amp THS720P User Manual 2 13 Functional Overview Attach the Reference Leads Correctly If you are using both of the oscilloscope channels you must attach the probe reference lead for each channel directly to your circuit These attachments are required because the oscilloscope channels are electrically isolated they do not share a common chassis connection Use the shortest possible reference lead with each probe to maintain good signal fidelity If you are also using the DMM you must also attach the DMM common lead to your circuit for the same reason as above The probe reference lead presents a higher capacitive load to the circuit under test than the probe tip When taking a floating measurement between two nodes of a circuit attach the probe reference lead to the lowest impedance or least dynamic of the two nodes Beware of High Voltages Understand the voltage ratings for the probes you are using and do not exceed those ratings Two ratings are important to know and understand m The maximum measurement voltage from the probe tip to the probe reference lead m The maximum floating voltage from the probe ref
48. CAT Ill Environment referto 600 Vams page A 19 Maximum Voltage Overvoltage Category Maximum Voltage Between Probe Tip and Reference Lead CAT II Environment 1000 Voc AC Coupled CAT Ill Environment 600 Voc Maximum Voltage Overvoltage Category Maximum Voltage Between Reference Laod ond Eanh Ground CAT II Environment 600 Vams CAT Ill Environment 300 Vas THS710A THS720A THS730A amp THS720P User Manual A 11 Appendix A Specifications DMM Specifications General Resolution 334 digit 4000 count full scale reading except as noted Input Resistance AC 10 MQ 10 or DC Voltage Input Capacitance AC lt 100 pF or DC Voltage typical Maximum Voltage Overvoltage Category Maximum Voltage a ee M and CAT I Environment refer to 640 Vrms 880 Voc P page A 19 CAT II Environment refer to 600 Vams page A 19 CAT IIl Environment refer to 300 VRMS page A 19 Maximum Voltage Overvoltage Category Maximum Voltage Between DMM or COM Input and Earth Ground CAT I Environment refer to 640 Vrms 880 Vpc page A 19 CAT II Environment refer to 600 Vams page A 19 CAT III Environment refer to 300 VRMS page A 19 DC Voltage Ranges and Resolution Range Resolution 400 0 mV 0 1 mV 4 000 V 1 mV 40 00 V 10 mV 400 0 V 100 mV 880 V 1V A 12 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications DMM Specifications Cont DC Voltage Accuracy 0 5 of reading 5 counts Normal
49. Conditions THS710A THS720A THS730A amp THS720P User Manual iii General Safety Summary Safety Terms and Symbols Terms in This Manual These terms 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 product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product These symbols may appear on the product A A m CAUTION WARNING Double Protective Ground Refer to Manual High Voltage Insulated Earth Terminal Battery Recycling This product contains a Nickel Cadmium NiCd battery which must be recycled or disposed of properly For the location of a local battery recycler in the U S or Canada please contact RBRC 800 BATTERY Rechargeable Battery Recycling Corp 800 227 7379 P O Box 141870 www tbrc com Gainesville Florida 32614 THS710A THS720A THS730A amp THS720P User Manual OOOO O Hoo O Preface This User Manual describes the capabilities operation and applications of the THS710A THS720A THS730A and THS720P TekScope instruments
50. E MILHNUHI WAU AN DISPLAY Harmonics Off THS720P only Display Style Vectors Dots Vector Accumu Set accu late mulate time Dot Accumulate Display Contrast a Set contrast Graticule Full Grid Cross Hair Frame Format YT XY THS710A THS720A THS730A amp THS720P User Manual 3 13 DISPLAY HARMONICS Key Points Display Style Choose one of the following waveform display styles m Vectors fills the space between adjacent sample points in the display Widely spaced points are filled using sin x x interpolation m Dots displays only the individual sample points m Vector Accumulate adds persistence to the vector display Use the rocker to set the accumulate time m Dot Accumulate adds persistence to the dot display Use the rocker to set the accumulate time NOTE Vector Accumulate and Dot Accumulate are display functions only When you change most control settings the accumulated data is cleared Accumulated waveforms cannot be saved XY Format Choose XY display format when you want to display channel 1 in the horizontal axis and channel 2 in the vertical axis The controls operate as follows m The channel 1 VOLTS DIV and vertical POSITION controls now set the horizontal scale and position m The channel 2 VOLTS DIV and vertical POSITION controls continue to set vertical scale and position m The SEC DIV and horizontal POSITION controls affect the time base and the p
51. HS710A THS720A THS730A amp THS720P User Manual 3 45 SAVE RECALL Key Points Saving and Recalling Setups Whether you save a setup in scope mode or meter mode the TekScope instrument stores its complete setup in nonvolatile memory When you recall the setup you will be in the mode from which the setup was saved Recalling the Factory Setup You can recall the Factory Setup to initialize the TekScope instrument to a known setup Appendix B describes the Factory Setup in detail Saving a Waveform Push the CH 1 CH 2 or MATH button to choose the waveform to save Waveform position and scale factors are saved with each waveform Recalling a Waveform Recall a saved waveform into either Ref A or Ref B for display When you recall a saved waveform the recalled waveform overwrites the previous Ref A or Ref B waveform Saving and Displaying a Waveform in One Step Using a vertical menu you can save a waveform and keep it for display at the same time Refer to Ref A or Ref B Vertical Menu on page 3 71 for information about this capability Saving Harmonics Data THS720P If you save the channel 1 or channel 2 waveform while the harmonics display is on the harmonic measurements and bargraphs are also saved When you recall the waveform turn the harmonics display on to see the harmonics measurements and bargraphs Saving Power Measurement Data THS720P If you save the MATH waveform while the harmonics display is on the power m
52. HS730A amp THS720P User Manual HORIZONTAL Controls Readout The waveform readout shows the horizontal scale factor below the graticule Page 3 48 shows the location of this readout Time Base Choose the Main or Delayed time base The delayed time base runs at the preset delay time after the trigger event for the main time base Use the t rocker to set the delay time directly Delayed ire x waveform record ain trigger Main trigger source Delay time Set Delay with Cursor V Bars Place the V Bar cursors around an area of interest after the trigger point Press Set Delay with Cursor V Bars to set the delayed time base and delay time to view the area between the cursors in detail Trigger Position Choose the amount of pretrigger m Set to 10 places the trigger point near the beginning of the waveform record m Set to 50 places the trigger point at the center of the waveform record m Set to 90 places the trigger point near the end of the waveform record m You can also set any amount of pretrigger 0 to 100 with the rocker Display T at Trig Pt The trigger point on the waveform is marked with the T symbol The T symbol can be turned on or off THS710A THS720A THS730A amp THS720P User Manual 3 29 HORIZONTAL Controls Horizontal Operations in Meter Mode MIMLIINUFIL METER HAUNDIA MLUPUFI MILINIEI nua E Cig score METER HORIZONTAL MENU
53. LUMUFII rau alii Q o D SCORE MHUNUHH HUAINA METER A D continuity diode The meter mode display shown below is divided into three sections The next two pages identify the content of each section in detail Status line Measurement readout areas tm se l TU Sef o80cc ee zra WSS S 44 Os Zoom Off Graticule area THS710A THS720A THS730A amp THS720P User Manual 3 39 METER Mode Status Line The status line across the top of the display contains acquisition information The overrange indicator warns when an overvoltage is applied to the input Acquisition readout Overrange indicator Tek Run Pk Detect The table below shows examples of the acquisition readout Acquisition Readout Explanation RANE Acquisition running with autorange function on AUTO RANGE or off Run or acquisition is stopped Hold Run Hold Saved data is recalled for display from location 7 Data 2 while acquisition runs in the background Sample Acquisition mode for data logger 3 40 THS710A THS720A THS730A amp THS720P User Manual METER Mode Graticule Area The graticule area contains the data logger plot the bar graph their scale markers and the zoom factor readout Data logger plot we Upper vertical ag range marker meen Bar graph Reference gt m level b S ee pe php a A range marker L y J l Zoom factor Horizontal s
54. MHz THS710A bandwidth with selectable 20 MHz bandwidth limit 1 GS s THS730A 500 MS s THS720A and THS720P or 250 MS s THS710A sample rate and 2 500 point record length Separate digitizers for each channel both channels always acquire simultaneously Waveform averaging and enveloping with hardware peak detection Digital Real Time digitizing up to five times oversampling sin x x interpolation and peak detect acquisition to limit the possibility of aliasing Independently isolated channels to allow improved safety for measurements to 1000 Vrms while floating up to 600 Vams using P5102 probes Cursors and 21 continuously updated automatic measurements Simultaneous oscilloscope and meter operation on the same or on separate signals Advanced pulse video external and motor trigger THS720P capabilities Harmonic analysis and power measurements THS720P THS710A THS720A THS730A amp THS720P User Manual Getting Started Meter Features The TekScope instrument is also a full featured DMM with the following features True RMS VAC VDC Q continuity and diode check functions Autoranging or manual ranging Data logger plot of meter measurements over a period of time Max min delta max min relative delta and average statistics in the readout Bar graph for an analog meter feel Independently isolated meter inputs allow floating measurements to 600 VRMS Overvoltage indicator warns when an overv
55. Mode Rejects AC signals by gt 60 dB at 50 Hz or 60 Hz user selectable Rejection typical Common Mode Rejection typical AC Voltage Conversion Type AC conversions are true RMS The AC measurement is based on the AC and DC components of the signal as shown below AC Measurement RMS AC DC DC Ranges and Resolution Resolution iV i Accuracy Maximum Error 40 Hz to 500 Hz Sinusoidal waveforms with no 2 of reading 5 counts DC component Nonsinusoidal waveforms with 4 of reading 5 counts crest factor up to 3 and no DC Rejects AC signals by gt 100 dB at 50 Hz or 60 Hz user selectable component Common Mode Rejects AC signals by gt 60 dB atDC 50 Hz and 60 Hz Rejection typical THS710A THS720A THS730A amp THS720P User Manual A 13 Appendix A Specifications DMM Specifications Cont Q Resistance Ranges and Resolution Range Resolution 400 0 Q 0 10 4 000 kQ 40 00 kQ 10Q 400 0 kQ 100 Q 4 000 MQ 1 kQ 40 00 MQ 10 kQ i Accuracy Range Maximum Error All ranges except 40 MQ 0 5 of reading 2 counts 40MQ 2 of reading 5 counts for lt 60 relative humidity Bias Voltage for Full Range Full Scale Bias Voltage anne 000 m 4 000 KQ 200 mV 40 00 KQ 350 mV 400 0 kQ 350 mV 4 000 MQ 400 mV 40 00 MQ 1 10 V Open Circuit Voltage Range Open Circuit Voltage typical 400 0 Q 48V All other ranges lt 1 2 V O A 14 THS710A THS720A THS730A amp THS720P User Manual Ap
56. NUHII wi MAUAINA Thick Full Grid Cross Hair Frame TOGGLE S Set contrast Data Logger Line Style For better visibility choose Thick for a three pixel high data logger plot The default Thin is one pixel high THS710A THS720A THS730A amp THS720P User Manual 3 21 HARD COPY HARD COPY You can print a hard copy of the display if a printer is connected and properly configured Press the HARD COPY button to start printing If you do not want menus to show press CLEAR MENU before you press HARD COPY You cannot change instrument settings while the hard copy is printing Connecting a Printer Use the RS 232 cable to connect the printer to the RS 232 port on the side of the TekScope instrument The RS 232 accessory kit includes an adapter for 9 pin RS 232 connectors m Refer to RS 232 System on page 3 64 for information about setting the TekScope instrument for RS 232 communication with your printer m Refer to the user manual for your printer for information about setting its baud rate and any other required parameters m Refer to Making the Connection on page 3 24 for information about RS 232 cables and adapters TekS cope instrument Printer RS 232 cable 00000 009 3 22 THS710A THS720A THS730A amp THS720P User Manual HARD COPY Setting Up to Print Perform the
57. PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES Service Assurance If you have not already purchased Service Assurance for this product you may do so at any time during the product s warranty period Service Assurance provides Repair Protection and Calibration Services to meet your needs Repair Protection extends priority repair services beyond the product s warranty period you may purchase up to three years of Repair Protection Calibration Services provide annual calibration of your product standards compliance and required audit documentation recall assurance and reminder notification of scheduled calibration Coverage begins upon registration you may purchase up to five years of Calibration Service Service Assurance Advantages m Priced well below the cost of a single repair or calibration m Avoid delays for service by eliminating the need for separate purchase authorizations from your company m Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance contact your local Tektronix representative and provide the information below Service
58. Probe 100 mV A ACQUIRE Stop After Single Acquisition Sequence HOLD RUN STOP When you start the motor the instrument captures the transient current and freezes the waveform in the display Going Further You can measure the true RMS current of the transient current using the following technique 1 Turn on automated measurements for channel 1 and select the BrstW burst width and RMS measurements Refer to page 3 31 for infomation about automatic measurements 2 Record the BrstW and RMS measurements 3 Record the SEC DIV setting 4 Calculate the true RMS value of the transient current using recorded values in the one of the equations below EC DI True RMS RMS x 10 x SEC DIV if MAG is off BrstW True RMS RMS x 100 x SEC DIV if MAG is on BrstwW THS710A THS720A THS730A amp THS720P User Manual 2 49 Power Measurement Application Examples Triggering at a Specific Motor RPM You need to measure the start up current of a 3600 RPM motor at several specific speeds A tachometer attached to the motor outputs a low voltage square wave with 100 pulses per revolution Set up the TekScope instrument to trigger at 1200 RPM so you can measure the current at that speed 1200 rev min x 100 pulses rev 60 s min Tachometer output frequency 2 kHz period 2 kHz Tachometer pulse width 250 us 2 2 100 mV A ooocoa
59. RIGGER Trigger Type MEN Trigger On Odd Field Adjust the SEC DIV rocker to 2 ms div to display the odd field across about eight divisions The Dot Accumulate display style simulates an analog oscilloscope display of the video signal Going Further Use the following setup to trigger on a specific video line ie p Ts L SCOPE TRIGGER Trigger Type Video De Trigger On Odd Field Set line number Adjust the SEC DIV rocker to 10 us div to display the line across about six divisions THS710A THS720A THS730A amp THS720P User Manual 2 33 General Purpose Application Examples 2 34 THS710A THS720A THS730A amp THS720P User Manual aes fs ea aa Power Measurement Application Examples This section presents a series of power measurement application examples These simplified examples highlight the features of the TekScope instrument and give you ideas about using it to solve your own test problems These examples provide an overview of applications that cover the following areas m Power electronics testing m Power quality testing m Motor testing NOTE Some of these application examples require optional probes Others highlight features only available in the THS720P THS710A THS720A THS730A amp THS720P User Manual 2 35 Power Measurement Application Examples Testing a Switching Transistor Drive Circuit You need to evaluate the gate driv
60. S720P THS730A Peak Detect or Enve Captures 50 or greater amplitude of pulses gt 8 ns wide lope Pulse Response gt 20 ns wide at 500 ns div typical DC Gain Accuracy 2 for Sample or Average acquisition mode Position Accuracy 0 4 x position x volts div 0 1 div x volts div THS710A THS720A THS730A amp THS720P User Manual A 3 Appendix A Specifications Oscilloscope Specifications Cont Measurement Type Accuracy Absolute voltage measure 2 x reading ments position x volts div 0 1 div x volts div Delta voltage between any two 2 x reading waveforms acquired under 0 05 div x volts div Same setup 2 x reading position x volts div 0 15 div x volts div 0 6 mV Vertical 1 DC Measurement Accuracy Average Acquisition Mode Using gt 16 Waveforms DC Measurement Accuracy Sample Acq Mode typical Horizontal Sample Rate Range THS710A THS720A THS720P THS730A 5 S s to 5 S s to 5 S s to 5 S s to 250 MS s ina 500 MS s ina 500 MS sina 1GS sina 1 25 2 0 0 125332 5 5 1 25 2 5 5 1 25 2 5 5 sequence sequence sequence sequence Record Length 2500 samples for each channel SEC DIV Range THS710A THS720A THS720P THS730A including MAG 10 ns div to 5 ns div to 5 ns div to 2 ns div to 50 s div 50 s div 50 s div 50 s div 1 Sample Rate and 200 ppm over any 21 ms time interval Delay Time Accuracy Delay Time Range Z
61. S720P User Manual S S ns General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures To Avoid Fire or Personal Injury Connect and Disconnect Properly Do not connect or disconnect probes or test leads while they are connected to a voltage source Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal Replace Batteries Properly Replace batteries only with the proper type and rating specified Recharge Batteries Properly Recharge batteries for the recommended charge cycle only Use Proper AC Adapter Use only the AC adapter specified for this product Do Not Operate Without Covers Do not operate this product with covers or panels removed Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in an Explosive Atmosphere Do Not Operate in Wet Damp
62. Tektronix 7 THS710A THS720A THS730A amp THS720P TekScope User Manual 070 9731 05 This document applies to serial number BO10100 and above and firmware version 1 13 and above First printing February 1998 CE Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc PO Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc Tek Secure is a registered trademark of Tektronix Inc TekTools TekScope and IsolatedChannel are trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three 3 years from the date of purchase from an authorized Tektronix distributor If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product Batteries are excluded from this warranty In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the
63. a bipolar motor drive waveform METER TRIGGER Trigger Type MENS Trigger Source Chl Ch2 Trigger DC Coupling AC Trigger Slope rising edge falling edge Mode amp Holdoff Auto Set holdoff Normal Trigger Level You can set the trigger level from 0 1 to 5 divisions for positive slope and from 0 1 to 5 divisions for negative slope If you change the slope the trigger level automatically changes sign Key Points THS710A THS720A THS730A amp THS720P User Manual 3 61 UTILITY UTILITY The following are examples of what you can do with each of the six branches in the Utility menu 3 62 Use Config to display the firmware version Use Hard Copy to set up hard copy parameters Refer to HARD COPY on page 3 22 for information about setting up and printing a hard copy Use RS 232 to set up for remote communication Use Misc to set the standby or backlight timeout Use Cal to compensate the signal path Use Diag to run internal diagnostic routines Press the UTILITY button to display the utility menu You can access the same utility menu from scope mode or meter mode Then use the left most button in the utility menu to choose the branch The remaining items in the utility menu may change depending on the branch you choose THS710A THS720A THS730A amp THS720P User Manual UTILITY Config System ro mae SCOPE or UTILITY Syste
64. ak and duty cycle measurements to the display with the following additional steps ai SCOPE MEAS Select Page fs Select Positive Duty Measrmnt for Cycle Chl OK Select Measrmt Select Page press once Select Measrmnt for Chl OK Select Measrmt THS710A THS720A THS730A amp THS720P User Manual 2 21 General Purpose Application Examples Measuring Propagation Delay You suspect that the memory timing in a microprocessor circuit is marginal Set up the TekScope instrument to measure the propaga tion delay between the chip select signal and the data output of the memory device A 12 6 ns 2 22 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Measure Propagation Delay li TOGGLE HAUAA C ry L AUTO RANGE CURSOR Cursor Adjust first Function cursor press TOGGLE and then adjust second cursor 1 If necessary adjust the SEC DIV rocker to optimize display for the propagation delay measurement Set one cursor to the active edge of the chip select signal and the second cursor to the data output transition Read the propagation delay in the cursor readout Going Further The above example uses cursors to take relative timing measure ments A seconds between two different waveforms If
65. and horizontal axis attributes of a waveform record The time base determines when and how long to acquire record points Total Harmonic Distortion THD The ratio of the waveform harmonic content to the RMS of either the fundamental or the input signal expressed as a percent THS710A THS720A THS730A amp THS720P User Manual Glossary 9 Glossary Vertical Bar Cursors The two vertical bars you position to measure the time parameter of a waveform record The oscilloscope displays the value of the active moveable cursor with respect to trigger and the time value between the bars Video Trigger Triggering on the sync pulse of a composite video signal XY Format A display format that compares the voltage level of two waveform records point by point It is useful for studying phase relationships between two waveforms YT Format The conventional oscilloscope display format It shows the voltage of a waveform record on the vertical axis as it varies over time on the horizontal axis Glossary 10 THS710A THS720A THS730A amp THS720P User Manual Index A accessories C 1 ACQUIRE button 2 4 3 3 acquisition modes 3 3 status 3 40 3 49 amplitude measurement 3 35 applications analyzing serial data communica tion link 2 30 detecting glitches 2 26 detecting missing power cycle 2 42 displaying unknown signal 2 16 measuring continuity 2 19 measuring diode junctions 2 19 measuring frequency 2 20
66. anual D 15 Appendix D Performance Verification Check Channel 2 Edge Trigger Sensitivity 1 First check the channel 1 edge trigger sensitivity using the previous test Then perform these additional steps to check the channel 2 edge trigger sensitivity alts SCOPE MLINU MAHMU MAUAJI MILIN UFI MAUNA MILINUHI CH1 TOGGLE WAVE FORM TRIGGER Trigger Source High Low MEAS Gating amp High Low Setup Method Select Ampl Measrmnt OK Select Measrmnt You may need to press Select Page to display this selection Min Max 2 Connect the TekScope instrument to the leveled sine wave generator as shown below Leveled sine wave 50 Q feedthrough generator terminator Ch2 Output BNC cable D 16 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification 3 Set the leveled sine wave generator frequency to 200 MHz if you are checking a THS730A or to 100 MHz if you are checking a THS710A THS720A or THS720P 4 Set the TekScope instrument VOLTS DIV to 500 mV div 5 Set the leveled sine wave generator output level to approximately 50 mVp p so that the measured amplitude is approximately 500 mV The measured amplitude can fluctuate around 500 mV 6 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as ne
67. aticule area contains waveforms and position indicators Horizontal position indicator ee e Unselected waveform Trigger position indicators Selected Pai i waveform NN y y Full graticule Trigger level indicator 3 50 THS710A THS720A THS730A amp THS720P User Manual SCOPE Mode Waveform Readout Lines The readout lines below the graticule contain specific information about displayed waveforms The top line displays vertical readout for channel 1 and channel 2 The bottom line displays readout for Ref A Ref B or Math whichever waveform was selected last Vertical readouts a Chi 200m F fie 1 YB M 100ns chi 324mY Math SY The table below shows examples of the vertical readout symbols Vertical Readout Symbols Explanation thz Selected waveform chi Unselected waveform Inverted channel F GND coupling iiy AC coupling Ey Bandwidth limit on B amp Reference waveform Ref B recalled from waveform storage location eight THS710A THS720A THS730A amp THS720P User Manual 3 51 SCOPE Mode The waveform readout lines also show time base and trigger information Main or delayed Trigger time base information a a N chi Som che 100m M 100ns chi 148mY 100mY Sms Reference waveform time base The table below shows examples of time base information Time Base Information Explanation M Main time base C Delayed time base The table below shows examples of the trigg
68. ation Examples Setup to Detect a Missing Cycle MITLIINUFIL WAU ANA et MILIINUHII WAU ANT TOGGLE s RANGE erie p TRIGGER Trigger Type Pulse ENa Trigger Chl Source Polarity and Negative Set width to Width 20 ms Trigger When Greater Than Width Set the trigger level to 50 V The TekScope instrument triggers if one or more power cycles drop below a 50 Vp threshold You can set the voltage threshold to any other level that constitutes a power dropout Going Further Use the other channel to analyze the effect that the missing cycle has on your equipment Momentary sags in internal power supply voltages m Malfunctions in digital circuitry m Variations in clock frequencies Channel and channel 2 are always acquired simultaneously so you can correlate a cause displayed on one channel to the effect displayed on the other THS710A THS720A THS730A amp THS720P User Manual 2 43 Power Measurement Application Examples Measuring Harmonic Current THS720P A three phase power distribution system feeds an office that contains a lot of electronic equipment Connect the TekScope instrument to analyze the harmonic current in the neutral conductor O 100 mV A 2 44 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples
69. au aura O A SCOPE NUNUI te SCOPE TRIGGER Ede J MENU Trigger Source Ch2 Ext DMM Trigger DC Coupling HF Reject Chl orCh2 LF Reject source only Noise Reject Trigger Slope rising edge falling edge Mode amp Holdoff Auto Set holdoff Normal Key Points Normal and Auto Mode Use Normal trigger mode when you want the oscilloscope to trigger only on a valid trigger Use Auto trigger mode when you want the acquisition to free run in the absence of a valid trigger event Also choose Auto when you want an untriggered rolling waveform at 500 ms div or slower time base settings External Trigger Use external trigger to trigger on a signal connected to the DMM inputs External trigger coupling is always DC You can choose either a 0 2 V or a 2 V trigger level 3 56 THS710A THS720A THS730A amp THS720P User Manual TRIGGER Controls Holdoff You can use holdoff to help stabilize the display of complex waveforms After you press the Mode amp Holdoff menu button use the rocker to set the holdoff time from 500 ns to 10 s Holdoff begins when the TekScope instrument recognizes a trigger event and disables the trigger system until acquisition is complete The trigger system remains disabled during the holdoff time that follows each acquisition Acquisition Acquisition interval interval Trigger level sian _ C Indicates JUUL JUUL JIL trigger points
70. ayed just to the right of the data logger display and uses the vertical axis of the data logger display as its scale The bar graph extends from zero or the RelA baseline value to the current meter measurement It tracks the meter measurement rate and updates about ten times per second In addition the bar graph contains two hollow segments that represent the current values of the Min and Max statistics c Max Statistic Sasa SSE SET eh Ee ER as eh vee lt Current meter reading lt Reference level c lt Min statistic For More Information Many of the other sections in this chapter contain additional information about meter mode menus and operation Please refer to those sections which are arranged alphabetically by button name 3 44 THS710A THS720A THS730A amp THS720P User Manual SAVE RECALL SAVE RECALL Press the SAVE RECALL button to save or recall any of the following m Setups m Oscillscope waveforms DMM Data Save Recall Menu in Scope Mode cm vay SAVE Save Current To Setup Choose setup RECALL Setup location Recall Saved Recall Factory Setup Setup Recall Setup Choose setup location Save selected To Waveform Choose wave wim form location Recall Saved Load REFA Waveform From Wfrm Load REFB From Wfrm OK Save Setup OK Recall Setup OK Recall Factory OK Save Waveform OK Recall Waveform T
71. bstituting CH 2 for CH 1 7 Press CH 1 and WAVEFORM OFF to remove the channel 1 waveform from the display 8 Repeat steps 3 through 5 substituting CH 2 for CH 1 to complete the check of channel 2 THS710A THS720A THS730A amp THS720P User Manual D 7 Appendix D Performance Verification AA Check Channel 1 Bandwidth 1 Set up the TekScope instrument using the following steps MITLIINUFIT 4 MILIIMUFII WAU ANA SAVE Recall Saved Recall Factory RECALL Setup Setup OK Recall Factory ACQUIRE Acquire Mode Set to 16 TRIGGER Trigger Noise Reject Coupling MEAS Gating amp High High Low Min Max Low Setup Method Select Pk Pk Measrmnt OK Select Measrmnt You may need to press Select Page to display this selection 2 Connect the TekScope instrument to the leveled sine wave generator as shown below Leveled sine wave 50 Q feedthrough generator terminator Output BNC cable D 8 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification oh a ee ae 8 9 Set the TekScope instrument VOLTS DIV to 100 mV div Set the TekScope instrument SEC DIV to 10 us div Set the leveled sine wave generator frequency to 50 kHz Set the leveled sine wave generator output level so the peak to peak measurement is
72. cale markers Measurement Readout Area The area above and to the right of the graticule contains the current meter reading statistic readouts and cursor readouts Current meter reading 9 9027 ETA avg SESC V 0566x ma 4 Oday Oo hr 3 min 205 Cursor oday readouts O hr 1 min 405 THS710A THS720A THS730A amp THS720P User Manual 3 41 METER Mode 3 42 Data Logger Display The data logger records meter measurements over a period of time creating a plot similar to a strip chart recorder You can set the time span of the plot from four minutes to eight days The data logger plot scrolls to the left The most recent data is always at the right end of the graticule The oldest data disappears off the left side of the graticule and is erased lt Data logger scrolls to the left Reset The TekScope instrument erases the waveform in the data logger plot if you make any of the following control changes Turn off the HOLD function m Change the measurement function from VAC to VDC for example m Change the probe scale factor m Change the RelA value m Change the data logger scroll speed THS710A THS720A THS730A amp THS720P User Manual METER Mode Zero Level If you select the VDC meter function the zero level is located at the horizontal centerline of the graticule for all other meter functions the zero level is the bottom of the graticule
73. cessary and then check that triggering is stable 7 Change the TekScope instrument setup using the following steps MILUMUFI HUANA Ei eor am nm SCOPE TRIGGER Trigger Slope falling edge 8 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable THS710A THS720A THS730A amp THS720P User Manual D 17 Appendix D Performance Verification Check DC Voltage Accuracy 1 Set the DC voltage source output level to 0 V 2 Set up the TekScope instrument using the following steps METER 3 Connect the TekScope instrument to the DC voltage source as shown below DC voltage source Banana cables D 18 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification 4 For each range set the DC voltage source output to the level listed below and then compare the meter reading to the accuracy limits Range Output Level Accuracy Limits 400 mV 59 2 mV to 60 8 mV 400 mV 357 7 mV to 362 3 mV 4V 3 577 V to 3 623 V 40 V 35 77 V to 36 23 V 400 V 357 7 V to 362 3 V 880 V 783 V to 801 V 5 Set the DC voltage source output level to 0 V THS710A THS720A THS730A amp THS720P User Manual D 19 Appendix D Performance Verification Check AC Voltage Accuracy 1 Set the AC voltage
74. compared to half screen if two channels are displayed Autorange adjusts these controls Scope Mode Vertical VOLTS DIV adjusted Horizontal SEC DIV adjusted Trigger level set to 50 Meter Mode DMM reading exceeds 3600 counts or falls below 330 counts Meter Mode Range adjusted to 4 V or higher ranges only THS710A THS720A THS730A amp THS720P User Manual 3 9 AUTORANGE 3 10 These control changes turn off autorange Scope Mode Meter Mode Change to Stop After Single Acquisi Change range VOLTS DIV tion Sequence Change VOLTS DIV Change SEC DIV Change trigger type Change trigger level Change trigger coupling Change trigger holdoff Change display format to XY Change display style THS710A THS720A THS730A amp THS720P User Manual CURSOR CURSOR Press the CURSOR button to display the cursor menu In scope mode cursors operate on the 2500 point record of the selected waveform In meter mode they operate on the 250 point data logger plot SCOPE METER Key Points MILIMUHI CURSOR CURSOR MLHNUHI MAUAINA S Cursor Function Set0 and 360 with V Bars Cursor Function MITLIINUFII Off H Bars V Bars Paired Seconds 1 seconds Hz Degrees Off H Bars V Bars Paired Cursor Movement Use the rocker to move the active cursor Press the TOGGLE button to change which cursor is active Fine Cursor Movement If
75. doff 3 57 setting level 3 54 setting pretrigger 3 29 setting slope 3 56 video trigger 3 60 U UTILITY button 2 5 3 62 Index 6 V vectors 3 13 VERTICAL MENU button 2 5 3 68 video trigger application examples 2 32 how to use 3 60 sync pulses 3 60 VOLTS DIV rocker channels 3 69 math waveform 3 70 meter mode 3 43 W WAVEFORM OFF button 3 68 waveforms saving and recalling 3 45 X XY display 3 14 Z zoom 3 43 3 73 THS710A THS720A THS730A amp THS720P User Manual
76. e Most other serial printers pe je Sun workstations ej o PC AT or laptop with 9 pin male A connector PC with 25 pin male connector ej o e 1 Tektronix part number 103 0334 XX supplied with HC 411 2 Radio Shack part number 26 1388 or equivalent 3 Radio Shack part number 26 1495 or equivalent 3 24 THS710A THS720A THS730A amp THS720P User Manual HARD COPY Troubleshooting RS 232 Problems If the TekScope instrument and the personal computer or printer have trouble communicating use the following steps to correct the problem m Verify that you are using the correct RS 232 cable and adapters Determine whether your configuration requires a null modem connection where transmit receive and control lines are switched or a straight through RS 232 connection m Verify that the RS 232 cable and adapters are firmly connected to both the TekScope instrument and the correct port on your personal computer or printer Verify that your printer or the program on the personal computer is using the correct port Try your program or printer again m Verify that the TekScope instrument settings match the settings used by your printer or the program on your personal computer Start by choosing Set RS 232 Parameters to Defaults in the RS 232 System of the Utility menu Then change only those menu items that you know need to be changed such as the baud rate Try your printer or computer program again THS710A THS720A THS730A
77. e circuit for a power FET field effect transistor in a switching power supply The gate drive timing circuit is referenced to chassis ground But the gate drive signal is transformer coupled to the FET which is connected to a 300 VDC bus Set up the TekScope instrument to compare the gate drive signal at the output of the timing circuit to the signal at the gate of the FET Timing circuit 300 VDC bus 2 36 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples Setup to Test the Transistor Drive Circuit simcinuei METER waa SEINE WAU ANA MALIN UFII _ Aid SCOPE MADAN TA SCOPE CHI o O RANGE You do not have to do anything special to take this difficult TOGGLE s measurement Because of the isolated channels you can reference the channel 1 probe to chassis ground and the channel 2 probe directly to the 300 VDC bus Channel displays the gate drive signal directly from the driver and channel 2 displays the signal as it is received by the power FET Going Further The isolated channels allow you to reference a channel to AC as well as DC voltages m You can connect the P5102 probe reference lead to 50 Hz 60 Hz or 400 Hz AC power lines up to the maximum voltage rating m You can connect the P6117 or P5102 probe reference lead to many
78. e ir ssomv readout area fi 200m ch 1 V SOns chi 460m Waveform readout lines 3 48 THS710A THS720A THS730A amp THS720P User Manual SCOPE Mode Status Line The status line across the top of the display contains acquisition and trigger information Acquisition readout Trigger status Additional items SSS a Se Tek Run SOOMSss Sample OTH Foo 3 254 YDE The table below shows acquisition readout examples that are displayed when acquisition is running When you press HOLD to stop acquisition the readout shows the number of waveforms acquired since acquisition was last stopped Acquisition Readout Explanation ate Acquisition running with autorange function on AUTO RANGE or off Run Run POMS ss Current sample rate PK Detect Acquisition mode The table below shows the meaning of the trigger status indicators Trigger Status Explanation ALTO Free running in Auto trigger mode Waiting for trigger in Normal trigger mode Acquiring new pre trigger data THS710A THS720A THS730A amp THS720P User Manual 3 49 SCOPE Mode The table below shows examples of additional items that are sometimes displayed in the status line Additional Items Explanation E 3 253 voc DMM icon and current DMM reading Delay Parameter and its current value only when the B 1 014 5 t rocker is assigned to a parameter Indicates that the DMM input is being used for Ext Trig external trigger Graticule Area The gr
79. e the setup Use the t rocker to adjust the parameter value or press the TOGGLE button to reset the parameter to its default value Recall Factory Setup Recall setu actory Save Recall Save Recall OK current Saved thi Saved Recall Setup Setup Waveform Setup 4 Ifthe OK bezel button is displayed press it to confirm your choice Recall Factory Setup Recall setu EG save Recall save Recall OK current Saved thi Saved Recall Setup Setup Waveform Setup THS710A THS720A THS730A amp THS720P User Manual 2 3 Functional Overview 2 4 Using the Menu Buttons You can use the menu buttons below to perform many functions of the TekScope instrument Many of these buttons operate differently in scope or meter mode 1 ACQUIRE Sets acquisition modes Sets calculation mode of data logger N SAVE RECALL Saves and recalls setups waveforms or DMM data THS710A THS720A THS730A amp THS720P User Manual Functional Overview 3 MEASURE Performs automated measurements of waveforms or data logger display 4 DISPLAY Changes appearance of waveform and display Activates harmonics THS720P only Changes appearance of data logger display 5 CURSOR Activates scope or data logger cursors 6 UTILITY Activates system utility functions 7 TRIGGER Activates trigger functions 8 HORIZONTAL Changes horizontal cha
80. eak Detect acquisition mode to limit the possibility of aliasing Also use Peak Detect for glitch detection You can see glitches as narrow as a 8 ns Peak Detect is only functional for sample rates up to 25 MS s For 50 MS s and faster sample rates the TekScope instrument switches to Sample acquisition mode automatically 3 4 THS710A THS720A THS730A amp THS720P User Manual ACQUIRE Three acquisitions from one source Acquisition mode Acquisition 1 Envelope uses Peak Detect mode Finds highest and for each individual acquisition lowest record points over many acquisitions Average uses Sample mode for Calculates average value each individual acquisition for each record point over many acquisitions Envelope and Average Use Envelope acquisition mode to capture variations of a signal over a longer period of time Use Average acquisition mode to reduce random or uncorrelated noise in the signal you want to display The t rocker sets a specific number of acquisitions N to include in the enveloped or averaged waveform m The enveloped waveform clears and then starts over after N acquisitions m The averaged waveform is a running average over N acquisitions m If you select Stop After Single Acquisition Sequence an envelope or average acquisition stops after N acquisitions THS710A THS720A THS730A amp THS720P User Manual 3 5 ACQUIRE If you probe a noisy square wave signal that contains intermittent
81. easure ments are also saved When you recall the waveform turn the harmonics display on to see the power measurements 3 46 THS710A THS720A THS730A amp THS720P User Manual SAVE RECALL Save Recall Menu in Meter Mode METER Key Points MILIMUHI SAVE RECALL TOGGLE g Choose setup location Recall Factory Setup Recall Setup Choose setup location Save DMM To Data Data Choose DMM data location Recall DMM Recall Data Data Save Current To Setup Setup Recall Saved Setup Clear Data From Screen OK Save Setup OK Recall Setup OK Recall Factory OK Save Data OK Recall Data OK Clear Data Saving and Recalling Setups Whether you save a setup in scope mode or meter mode the TekScope instrument stores its complete setup in nonvolatile memory Saving DMM Data Saving DMM data saves the meter mode meter range current DMM reading statistics and data logger plot THS710A THS720A THS730A amp THS720P User Manual 3 47 SCOPE Mode SCOPE Mode A Press the SCOPE button to enter scope mode If already in scope ea J mode pressing this button has no effect The scope mode display shown below is divided into four sections The next five pages identify the content of each section in detail Status line Tek Run SOOMS s Sample PGT Ge 0 000 voc Cad width 204 815 Graticule Heien eiee cipk pk Measurement area Sore ener ea
82. ecord point by saving the first sample during each acquisition interval This is the default mode of the acquisition system Sample Interval The time interval between successive samples in a time base For real time digitizers the sample interval is the reciprocal of the sample rate Sampling The process of capturing an analog input such as a voltage at a discrete point in time and holding it constant so that it can be quantized Selected Waveform The waveform on which all measurements are performed and which is affected by vertical position and scale adjustments THS710A THS720A THS730A amp THS720P User Manual Glossary Signal Path Compensation SPC The ability of the oscilloscope to minimize the electrical offsets in the vertical horizontal and trigger amplifiers caused by ambient temperature changes and component aging You should run SPC when the ambient temperature varies more than 5 C from the last SPC or before performing critical measurements Standby STBY The off like state when the instrument in not in use Some circuits are active even while the instrument is in the standby state Tek Secure A feature that erases all waveform and setup memory locations setup memories are replaced with the factory setup Then it checks each location to verify erasure This feature is useful where the oscilloscope is used to gather security sensitive data Time Base The set of parameters that let you define the time
83. ed runs after main Data logger position Data logger rate Data logger zoom dB reference voltage dBm into impedance Display format Display graticule type Display contrast Changed by Factory Setup to Sample HOLD button only 16 8 Channel 1 on all others off 3 2 divisions from the center 3 2 divisions from the center 2 divisions from the center 2 divisions from the center Off Seconds 50 us div 200 ns 0V 30 s div off 1V 50 Q YT Full 50 THS710A THS720A THS730A amp THS720P User Manual B 1 Appendix B Factory Setup Control Display style Display trigger T Display accumulate time DMM mode autorange DMM function DMM mode scope on off Edge trigger coupling Edge trigger level Edge trigger slope Edge trigger source Harmonics THS 720P Horizontal main trigger position Horizontal Mag Horizontal time base Main time base time div Math waveform function Measure High Low Setup Saved setups Saved waveforms Scope DMM mode Scope mode autorange Scope mode meter on off Trigger holdoff Trigger mode Changed by Factory Setup to Vectors On 500 ms Off DC volts Off DC 0 0 V Rising Channel 1 Off 50 Off Main only 500 us div CH1 CH2 Histogram No change No change Scope mode Off On Minimum 495 ns Auto THS710A THS720A THS730A amp THS720P User Manual Appendix B Factory Setup Control Trigger type Vertical bandwidth all channe
84. eo signal with negative sync pulse amplitude from Trigger Type typical 0 6 to 2 5 divisions Signal Formats and Broadcast systems Supports NTSC PAL and Field Rates Video SECAM Tagger Type Interlaced Trigger on selected line of odd field selected line of even field or any line Noninterlaced Trigger on selected line or any line Line Rates 15 kHz to 65 kHz in five ranges Holdoff Range 495 ns to 10s A 6 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications Oscilloscope Specifications Cont External Trigger External Trigger 600 Vrms CAT Il 300 Vas CAT III refer to page A 19 Maximum Input Voltage External Trigger DC only Coupling External Trigger Levels 0 2 V or 2 V selectable External Trigger Sensi 500 mV from DC to 1 MHz increasing to 1 Vp p at 5 MHz with tivity Signal centered at selected trigger level TTL compatible using 2 V trigger level Measurements Cursors Voltage difference between cursors AV Time difference between cursors AT Reciprocal of AT in Hertz 1 AT Phase difference between cursors ADegrees Automated Amplitude Burst Width Cycle Mean Cycle RMS Fall Time Measurements Frequency High Low Max Mean Min Negative Duty Cycle Negative Overshoot Negative Width Pk Pk Period Positive Duty Cycle Positive Overshoot Positive Width Rise Time and RMS THS710A THS720A THS730A amp THS720P User Manual A 7 Appendix A Specifications
85. eo triggers on a specific line in the odd or even field or on all the lines of an NTSC PAL or SECAM standard video signal see page 3 60 m Motor triggers THS720P on bipolar motordrive waveforms see page 3 61 Use the leftmost button in the trigger menu to choose the trigger type The remaining items in the trigger menu depend on the trigger type you choose 3 54 THS710A THS720A THS730A amp THS720P User Manual TRIGGER Controls Edge or Motor Pulse Video S ChooseCh1 Ch 2 8 ChooseChlorCh 2 8 ChooseChlorCh 2 3 orExternal Edge z 3 only 7 7 q DC DC S Positive Odd Field 3 ke 5 E a Interlaced D fo a HF gt Negative 1 Even Field 3 amp Reject MN WY Interlaced fo a LF iN Any Field 3 2 Reject uh Non interlaced fe O f Noise Rej DC Low i PS Lines Sensitivity es pulse width with 3 Choose line with l rocker rocker Fe 5 Less i A amp Positive g ThanWidh 17 NTSC D z O Greater i Q Negative ES 2 ThanWidth 7 gt PAL EqualTo y SECAM Width 2 NotEqual Custom Scan To Width2 7 H Rate 4 4Setscan rate with 2Set tolerance rocker THS710A THS720A THS730A amp THS720P User Manual 3 55 TRIGGER Controls Edge Trigger Use Edge triggering to trigger on the rising or falling edge of the input signal at the trigger threshold METER CLE hau TOGGLE MILIMUFI n
86. er information Trigger Information Explanation chi Trigger source Ma Edge trigger slope 148m Trigger level JL Pulse trigger polarity gt Pulse trigger condition 959005 Pulse trigger width Even Field Video trigger condition Line 146 3 52 THS710A THS720A THS730A amp THS720P User Manual SCOPE Mode Measurement Readout Area The area to the right of the graticule contains cursor and measure ment readouts If a measurement qualifier appears with a measure ment result the signal may be insufficient to take an accurate measurement 440m amp 31 4405 gt Cursor readouts 644m 7 CH Ampl 616m ca Freq gt Measurement readouts 15 61MHz Low signal 7 amplitude f Measurement qualifier For More Information Many of the other sections in this chapter contain additional information about scope mode menus and operation Please refer to those sections which are arranged alphabetically by button name THS710A THS720A THS730A amp THS720P User Manual 3 53 TRIGGER Controls TRIGGER Controls A Triggering is an oscilloscope only function the trigger controls a J shown below have no effect in meter mode EE TRIGGER EB MENU TRIGGER LEVEL SET LEVEL TO 50 The trigger types are the following m Edge triggers on the rising or falling edge of the input signal see page 3 56 m Pulse triggers on specific events that you can qualify by time see page 3 58 m Vid
87. erence lead to earth ground These two voltage ratings depend on the probe and your application Refer to Specifications beginning on page A 1 for more information WARNING To prevent electrical shock do not exceed the measure J ment or floating voltage ratings for the oscilloscope input BNC connector probe tip probe reference lead DMM input connector or DMM lead 2 14 THS710A THS720A THS730A amp THS720P User Manual a General Purpose Application Examples This section presents a series of general purpose application examples These simplified examples highlight the features of the TekScope instrument and give you ideas about using it to solve your own test problems The first two examples demonstrate basic scope and meter operation The remaining examples provide an overview of applications that cover the following areas m Digital circuit testing m Analog circuit testing m Video signal testing THS710A THS720A THS730A amp THS720P User Manual 2 15 General Purpose Application Examples Displaying an Unknown Signal You need to see a signal in a circuit but you have no previous knowledge of the signal amplitude frequency or shape Connect the TekScope instrument to quickly display the signal 2 16 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Display an Unknow
88. erification 6 Press SET LEVEL TO 50 7 Press MAG 8 Change the TekScope instrument setup using the following steps METER DAN WAU ANA MITES UFIL SCOPE HORIZON Time Base Delayed Runs TAL MENU After Main CLEAR MENU 9 Set the delayed time base to 50 ms div 10 Change the TekScope instrument setup using the following steps ha 7 IMUHII TOGGLE MIINUHI Tawa o T G SCOPE HORIZON Time Base Delayed Runs Set delay time TAL MENU After Main to 10 ms CLEAR z MENU 11 Set the delayed time base SEC DIV to 500 ns div 12 Check that the rising edge of the marker crosses the center horizontal graticule line within 4 divisions of center graticule NOTE One division of displacement from graticule center corre sponds to a 50 ppm time base error THS710A THS720A THS730A amp THS720P User Manual D 13 Appendix D Performance Verification AA Check Channel 1 Edge Trigger Sensitivity 1 Set up the TekScope instrument using the following steps Hu 44 SAVE _2 Saved Recall Factory RECALL Setup Setup OK Recall Factory ACQUIRE Acquire Mode Average Set to 16 TRIGGER Trigger Mode MEAS Gating amp High High Low Min Max Low Setup Method Select Ampl Measrmnt OK Select Measrmnt You may need to press Select Page to display this selection 2 Connect the TekScope instrumen
89. ero to 50s A 4 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications Oscilloscope Specifications Cont Internal Trigger HF RE 1 5 times the DC coupled limit from DC to 30 kHz attenuates Signals above 30 kHz LF REJ 1 5 times the DC coupled limits for frequencies above 1 kHz attenuates signals below 1 kHz Trigger Sensitivity Coupling Sensitivity a Heine OS 0 35 div from DC to 50 MHz ahd THS720P i increasing to 1 div at 100 MHz 90 MHz above 35 C Trigger Sensitivity Coupling Sensitivity Toe ee 0 35 div from DC to 50 MHz increasing to 1 5 div at 200 MHz 180 MHz above 35 C Trigger Sensitivity Coupling Sensitivity a NOISE REJ 3 5 times the DC coupled limits Trigger Level Range 4 divisions from center of screen Motor Trigger Level 0 1 to 5 divisions from center of screen polarity depends on Range THS720P slope selection Trigger Level 0 2 divisions for signals having rise and fall times gt 20 ns Accuracy typical SET LEVEL TO 50 Operates with input signals gt 50 Hz typical THS710A THS720A THS730A amp THS720P User Manual A 5 Appendix A Specifications Oscilloscope Specifications Cont Internal Trigger Width Range Pulse 99 ns to 1 s with resolution of 33 ns or approximately 1 of Trigger Type typical setting whichever is greater Width Tolerance 5 10 15 or 20 Range Pulse Trigger Type typical Sensitivity Video Composite vid
90. es on each axis Drop Resistance Survives a 30 in 76 cm drop onto concrete with only cosmetic typical damage Moisture Resistance Meets IEC 529 IP43 with DC input hole plug I O port hole plug and battery door installed A 18 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications General Specifications Cont Mechanical Size 8 53 in 217 mm 6 95 in 177 mm 2 00 in 50 8 mm Weight 3 2 Ibs 1 5 kg With all standard 7 5 lbs 3 4 kg accessories in soft carry case When packaged for 9 0 Ibs 4 1 kg domestic shipment Certifications and Compliances Certifications Listed UL3111 1 and CAN CSA C22 2 No 1010 1 92 complies with EN61010 1 A2 Overvoltage Category Examples CAT Ill A typical CAT Ill environment is the power distribution system within a building or factory These environments are somewhat protected from lightning strikes but susceptible to switching transients and other disturbances that may generate high voltage impulses CAT II A typical CAT Il environment is the 120 240 V distribution system within a lab or office These environments are fairly well protected from external high voltage disturbances CAT A typical CAT environment is circuitry inside electrical or electronic equipment that is powered by a power supply ora battery THS710A THS720A THS730A amp THS720P User Manual A 19 Appendix A Specifications General Specifications Cont Cer
91. et F cud Width 51 2505 cd Rise g 28n5 chd Ampl 616m 2 Freq 13 53MHz 3 32 THS710A THS720A THS730A amp THS720P User Manual MEAS High Low Setup The TekScope instrument determines the 10 50 or 90 levels of the selected waveform and then uses them to calculate the measurements You can choose the method used to determine these levels m Histogram sets the values statistically it finds the most common value either above or below the midpoint depending on whether it is defining the high or low reference level Since this statistical approach ignores short term aberrations overshoot ringing noise histogram is the best method for measuring digital waveforms and pulses m Min max uses the highest and lowest values of the waveform record This method is best for measuring waveforms that have no large flat portions at a common value such as sine waves and triangle waves THS710A THS720A THS730A amp THS720P User Manual 3 33 MEAS Measurement Gating You can use the gating feature to limit measurements to the portion of the waveform that is between the cursors When you turn gating on the instrument displays vertical bar cursors Use the rocker and TOGGLE button to move the cursors to the area of interest In the example below the cursors surround the second positive going pulse so the instrument can measure its width Tek ML Sooms ss 32 Acgs Ext Trig Cad Width 102 3ns M SOn
92. et the TekScope instrument SEC DIV to 10 us div Set the leveled sine wave generator frequency to 50 kHz Set the leveled sine wave generator output level so the peak to peak measurement is between 599 mV and 601 mV Set the leveled sine wave generator frequency to 200 MHz if you are checking a THS730A 100 MHz if you are checking a THS720A or a THS720P or 60 MHz if you are checking a THS710A Press MAG Set the TekScope instrument SEC DIV to 10 ns div 10 Check that the peak to peak measurement is 2425 mV THS710A THS720A THS730A amp THS720P User Manual D 11 Appendix D Performance Verification AA Check Sample Rate and Delay Time Accuracy 1 Set up the TekScope instrument using the following steps Ja WAU ANA B SCOPE SAVE Recall Saved Recall Factory RECALL Setup Setup OK Recall Factory VERTICAL Probe Type Voltage Probe Setto 1X MENU 2 Connect the TekScope instrument to the time mark generator as shown below Time mark 50 Q feedthrough generator terminator Output BNC cable 3 Set the time mark generator period to 10 ms 4 Set the TekScope instrument VOLTS DIV to 500 mV div 5 Use the vertical POSITION rocker to center the test signal on screen D 12 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance V
93. hange the width setting to 980 us and the Trigger When submenu to Less Than Width With this setup TekScope instrument triggers if the spacing between the pulses ever drops below 980 us which indicates an occurrence of an extra pulse m Use the second channel to find the cause of the problem You can correlate the cause and the effect because the TekScope instrument always acquires both channels at exactly the same time THS710A THS720A THS730A amp THS720P User Manual 2 25 General Purpose Application Examples Detecting Narrow Glitches An elapsed time counter circuit operates from a precision 1 kHz square wave clock signal supplied by another source Occasionally the counter counts too fast You suspect glitches in the clock signal are causing the problem Set up the TekScope instrument to look for glitches in the clock signal 2 26 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Detect Narrow Glitches pve SCOPE AUTO RANGE Monitor the clock signal for several minutes In Envelope acquisition mode the TekScope instrument displays the 1 kHz square wave clock signal plus intermittent glitches that are as narrow as 8 ns Going Further You can trigger on the gli
94. hows the currently selected harmonic Press the rocker to display power measurements for the next previous harmonic Harmonic Measurements The readout lines above the graticule contain harmonic measurements for the waveform and the selected harmonic Chi THD R 6 1 BMS 117 8 4 3rd Harmonic Fund 2 8 Freq 180 Hz hBMS 3 259 Phase 35 Harmonic Measurements Explanation THD F or THD R Total harmonic distortion of the waveform as a percentage of the fundamental THD F or of the RMS of the input signal THD R RMS RMS value of the input signal over one cycle Fund Amplitude of the selected harmonic as a percent of the fundamental hRMS RMS value of the selected harmonic in volts or amperes Freq Freqency of the selected harmonic Phase Phase of the selected harmonic relative to the phase of the fundamental Message Line A message such as Low Amplitude is displayed in the message line when the input signals do not meet the conditions necessary to take accurate measurements Correct the condition before proceeding THS710A THS720A THS730A amp THS720P User Manual DISPLAY HARMONICS Measurement Readouts The area to the right of the graticule contains measurement readouts similar to scope mode display Refer to page 3 53 for more information Waveform Readout Lines The readout lines below the graticule contain specific information about the waveform similar to scope mode display Refer to page 3
95. ifications Cont Power Source Battery Battery Life typical Low Battery Indication typical Battery Saver Battery Charging Time typical External Power Memory Retention typical Fuse Replaceable Ni Cd battery pack Approximately two hours of continuous use from a full charge Low battery message first appears approximately ten minutes before the instrument powers off automatically Standby Time out and Backlight Time out extend battery life Time out ranges from 1 minute to 15 minutes or off With TekS cope 9 hours instrument operating With TekS cope 9 hours instrument turned off In external charger 1 5 hours 12 VDC nominal center positive Operates with input from 10 VDC to 15 VDC The DC INPUT disconnects itself automatically if gt 15 VDC is applied If this occurs disconnect the overvoltage and then reconnect to a voltage in the proper range All memory is retained indefinitely with battery removed and without external power applied This instrument has no user replaceable fuses THS710A THS720A THS730A amp THS720P User Manual A 17 Appendix A Specifications General Specifications Cont Environmental Temperature 10 C to 50 C Humidity 40 C or below lt 95 relative humidity 41 C to 50 C lt 75 relative humidity Altitude 2 000 m Random Vibration Operating 2 66 grms from 5 Hz to 500 Hz 10 min utes on each axis Nonoperating 3 48 grms from 5 Hz to 500 Hz 10 min ut
96. ion OK Save Waveform Key Points Saving and Displaying a Waveform in One Step You can copy a live waveform from one of the save sources shown above Ch 1 Ch 2 or Math into Ref A or Ref B for display and also into the nonvolatile storage location you choose with the rocker Horizontal Position Choose locked or independent horizontal position control for the reference waveforms m Choose Lock to position all displayed waveforms as a group m Choose Ind to position each reference waveform independently The live waveforms Ch 1 Ch 2 Math still position as a group THS710A THS720A THS730A amp THS720P User Manual 3 71 VERTICAL Controls Vertical Operations in Meter Mode Off MENU Foam 2X 5X 10X Noise Reject None 60 Hz 50 Hz Volts Scale Volts Set reference voltage Set impedence Probe Type Current Probe Set conversion factor Voltage Probe 3 72 THS710A THS720A THS730A amp THS720P User Manual VERTICAL Controls Key Points Zoom You can get a close view of the data logger plot using the Zoom selection The plot is vertically enlarged around the center of the screen for the VDC function and around the bottom of the screen for other meter functions Before you choose Zoom you can choose Position or use the vertical POSITION rocker to move the plot Noise Reject You can improve the repeatability of AC measurements in the presence of 50 Hz or 60 Hz
97. ls Vertical coupling all channels Vertical position all channels Vertical volts div all channels Volts scale Changed by Factory Setup to Edge Full DC 0 div 100 mV div Volts THS710A THS720A THS730A amp THS720P User Manual B 3 Appendix B Factory Setup B 4 THS710A THS720A THS730A amp THS720P User Manual ha ee Appendix C Accessories Standard Accessories P6117 10X Passive Probes THS730A THS720A and THS710A The P6117 10X passive probes have 200 MHz bandwidth and a a a CAT II voltage rating of 300 Vams These probes are suitable for ge gt floating measurements up to 30 Vas The P5102 10X passive probes have 100 MHz bandwidth and a CAT II voltage rating of 1000 Vams These probes are suitable for ee om floating measurements up to 600 Vaws Meter Lead Set The standard pair of meter leads 012 1482 00 provides sharp Sa oe tips for probing two screw on plunger tips for grabbing test points D or small conductors and two screw on insulated alligator clips for grabbing terminals or larger conductors Battery Pack The TekS cope instrument includes one high capacity 4 8 V a 2 8 A hr rechargeable battery pack Refer to THS7BAT on page C 3 AC Power Adapter The AC power adapter allows operation from the AC power line and charges the internal battery North American
98. m with the following setup MILIINUFII TOGGLE S SCOPE MEAS Select Measrmnt for MATH OK Select Measrmnt You can also display the I V characteristic of the transistor for comparison to its safe operating area using the XY display format Refer to page 3 14 for information on XY display format THS710A THS720A THS730A amp THS720P User Manual 2 39 Power Measurement Application Examples Monitoring for Power Surges and Dropouts You are having intermittent problems with some electronic equipment that operates unattended at a remote site You need to determine if the problem might be caused by momentary power quality problems in the electrical service to the equipment Set up the TekScope instrument to monitor the line voltage for a week and capture any surges or dropouts that may occur Remote site 8 days _ gt CEREN 2 40 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples Setup to Monitor for Power Quality Problems METER nA toscie TAUA ey ACQUIRE Acquire Mode Peak Detect You can use the DMM data logger to record measurements over an extended period of time Set the full scale range to 400 V using the VOLTS DIV rocker Adjust the SEC DIV rocker
99. m o i tee en Erase Memory Version an Erase Setup Data Key Points Tek Secure If you have acquired confidential data you may want to execute Tek Secure before you return the TekScope instrument to general use Executing Tek Secure accomplishes the following tasks m Replaces all waveforms oscilloscope and data logger in all reference memories with zero sample values m Replaces the current front panel setup and all stored setups with the factory setup m Calculates the checksums of all waveform memory and setup memory locations to verify successful completion of waveform and setup erasure m Displays a confirmation or warning message if the checksum calculation is successful or unsuccessful THS710A THS720A THS730A amp THS720P User Manual 3 63 UTILITY RS 232 System m bb SCOPE or UTILITY System RS 232 Flagging Hard Flagging Soft Flagging w u Stop Bits Set RS232 Parameters to Defaults RS 232 Troubleshooting If you are having RS 232 communication difficulties try the following remedies Key Points m Verify that the RS 232 cable is connected to the correct port on your computer or hard copy device m Reset the RS 232 parameters to defaults and then set the baud rate to match the computer or hard copy device The default settings except baud rate are standard on most computers and hard copy devices 3 64 THS710A THS720A THS730A amp THS720P User Ma
100. mber mination connectors 011 0049 XX Dual Banana to BNC Banana plugs to BNC Tektronix part number Adapter female 103 0090 XX THS710A THS720A THS730A amp THS720P User Manual D 1 Appendix D Performance Verification Test Record Serial Number Procedure Performed by Date Test Failed Oscilloscope Tests High Limit Channel 1 5 mV div 34 05 mV P 35 95 mV DC Measure mentAccu 500 mV div 3405V 3 595 V racy 2 Vidiv 13 62 V al 14 38 V 10 Vidiv 68 1V fo 71 9 V Channel2 5 mV div 34 05 mV Oo g 35 95 mV DC Measure mentAccu 500 mv div f3 405V f fB595V racy 2 Vidiv 13 62 V ad 14 38 V 10 Vidiv 68 1 V Eoo 71 9 V Channel 1 Bandwidth 425 mV eoo _ Channel 2 Bandwidth 425 mV i et Sample Rate and Delay Time 4 divs 4 divs Accuracy Channel 1 Edge Trigger Stable trigger Sensitivity Channel 2 Edge Trigger Stable trigger Sensitivity THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification DC Voltage 400 mV 59 2 mV 60 8 mV Accuracy range 60 mV input 400 mV 357 7 mV 362 3 mV range 360 mV input AC Voltage 400 mV range 3523mV o 367 7 mV Accuracy 4 V range 0 583 V 0 617 V 600 mV input 4 V range 3 523 V 3 677 V 3 6 V input Resistance 400 Qrange 3580 o 362 0 Q 40 KQ range 5 95 KQ 6 05 KQ 6 KQ input 40 KQ range 35 80 kQ 36 20 kQ 36 KQ input 400 KQ range 358 0 KQ 362 0 KQ THS710A THS720A THS730A amp THS720P User Manual D 3
101. minals or larger conductors The cables have heat resistant silicone insulation THS7CHG Battery Charger The battery charger recharges the battery pack in 1 5 hours It can be powered from AC power or from the 12 V from an automobile cigarette lighter THS7BAT Extra Rechargeable Battery Pack An extra rechargeable battery pack provides a high capacity 4 8 V 2 8 A hr spare battery for extended portable operation BNC to Banana Plug Adapter This adapter 103 0090 00 converts the external trigger inputs to a BNC connector THS710A THS720A THS730A amp THS720P User Manual C 3 Appendix C Accessories Optional Accessories Cont Cigarette Lighter Adapter The cigarette lighter adapter 174 1734 00 allows you to operate the TekS cope instrument or charge the internal battery from an automobile cigarette lighter HC 411 Thermal Printer The HC 411 is a lightweight portable thermal printer that operates from AC or battery power and prints on 112 mm 4 4 in wide paper Additional paper is available order part number 006 7580 00 for a package of five rolls THS7HCA Hard Carrying Case The hard carying case provides ultimate protection for the TekS cope instrument This case has room for the TekS cope instrument voltage probes meter leads current probes AC power adapter battery charger
102. n Signal E eteR WAU ALDI E euni TOGGLE MILINUHII amp 7 tt Fy score Ss The autorange feature sets the vertical horizontal and trigger automatically for a usable display If the signal changes the setup tracks those changes Going Further If the autorange setup does not display the waveform exactly the way you like you can easily change the setup Press any of the buttons below to cancel autorange mode and modify the setup m VOLTS DIV m SEC DIV m TRIGGER LEVEL m SET TRIGGER LEVEL TO 50 THS710A THS720A THS730A amp THS720P User Manual 2 17 General Purpose Application Examples Measuring Resistance You need to probe a circuit to measure point to point resistance Connect the TekScope instrument to measure a variety of resistance values 29 23 KQ EOE 2 18 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Measure Resistance MIMLUINUFIN METER CD EEIEIE TOGGLE MILIMUHI TAUA O a W E SCOPE MHNUFI 8 WAU AN METER Going Further If a noisy environment causes an unstable resistance measurement use the Average statistic to average the
103. n and then press AUTORANGE to set the range automatically The meter mode display shown below is divided into three sections Refer to METER Mode on page 3 39 for a description of each section and more information about the data logger and bar graph Status line Measurement readout areas tm se i l TOU ha Seto oMcc a i asra were 4 Os Zoom Off Graticule area THS710A THS720A THS730A amp THS720P User Manual 2 9 Functional Overview Compensating the Oscilloscope Probes To maintain signal fidelity you must compensate each voltage probe eas for the channel input it is connected to 1 Connect the oscilloscope probe and then press AUTORANGE Probe reference lead to 5 0 0 o 0 o Probe tip to PROBE COMP AUTORANGE 00000 009 2 Check the shape of the displayed waveform Overcompensated MTAA Undercompensated Compensated correctly 2 10 THS710A THS720A THS730A amp THS720P User Manual Functional Overview 3 If necessary adjust the probe for correct compensation P6117 P5102 4 Repeat these steps for the other probe and channel Compensating the Oscilloscope Signal Path Signal path compensation optimizes the oscilloscope accuracy for ah J the current ambient temperature For maximum accuracy recompen sate the signal path if the ambie
104. nal Path 2 11 Taking Floating Measurements 000 00 eee 2 12 General Purpose Application Examples 2 15 Displaying an Unknown Signal 008 2 16 Measuring Resistance 1 ee cea eet a eet tes hate heen 2 18 Measuring the Frequency of a Clock Signal 2 20 Measuring Propagation Delay 0000 eee 2 22 Triggering on a Missing Data Pulse 24 2 24 Detecting Narrow Glitches vic cack eo hw R okeets Saeeae s 2 26 Triggering on a Third Signal 3 4sg54 eady aus bde ee aon 2 28 Analyzing a Serial Data Communication Link 2 30 Triggering on a Video Signal 69 16s ecesak wee wanes oS 2 32 Power Measurement Application Examples 2 35 Testing a Switching Transistor Drive Circuit 2 36 Measuring Instantaneous Power Dissipation in a Switching Transistor 00 000 e eee ee eee 2 38 THS710A THS720A THS730A amp THS720P User Manual i Table of Contents Monitoring for Power Surges and Dropouts 2 40 Detecting a Missing Power Cycle 0 000 2 42 Measuring Harmonic Current THS720P 2 44 Taking Power Measurements THS720P 2 46 Measuring Motor Start Up Current 04 2 48 Triggering at a Specific Motor RPM 2 50 Triggering on a Motor Drive Waveform THS720P 2 52 Reference In
105. nt temperature changes by 5 C or more 1 Disconnect any probes or cables from the channel 1 and channel 2 input BNC connectors Press UTILITY Select CAL from the System Menu Press Signal Path Oe Press OK Compensate Signal Path This procedure takes about one minute to complete THS710A THS720A THS730A amp THS720P User Manual 2 11 Functional Overview Taking Floating Measurements This section covers important issues to consider when taking floating measurements Architecture is Important For taking floating measurements the TekScope instrument has an architectural difference from most other oscilloscopes The channel 1 channel 2 and DMM inputs are isolated from the main chassis and from each other This architecture allows independent floating measurements with channel 1 channel 2 and the DMM TekScope instrument architecture Oscilloscope channels and DMM float independently Ax NS f DC and or AC voltage Y Electrically insulated case 2 12 THS710A THS720A THS730A amp THS720P User Manual Functional Overview Many handheld oscilloscope DMM products have the architecture shown below which shares a common reference for the oscilloscope channels and DMM With this architecture all input signals must have the same voltage reference when you take any multi channel measurements Other product architecture Oscilloscope channels and DMM must float together D
106. nual UTILITY Misc System ae TOGGLE Iu AIL E E USTER Power Off Set time Time Out Backlight Time Set time Out Key Points Power Off Time Out Use this feature to automatically turn off the TekScope instrument if it is not being used Use the rocker to set the power off time out delay from one minute to 15 minutes or to time out off Power off time out operates only when you use battery power Backlight Time Out Press this button to adjust the backlight time out delay This feature automatically turns the backlight off after a period of time if left unattended Use the rocker to set the backlight time out delay from one minute to 15 minutes or to time out off Backlight time out operates only when you use battery power THS710A THS720A THS730A amp THS720P User Manual 3 65 UTILITY Cal System mua CD Tuan SCOPE or UTILITY System Cal NEER Signal Path Factory Scope Factory DMM OK Compensate Signal Path OK Factory Cal Scope OK Factory Cal DMM Key Points Signal Path Compensation Signal path compensation optimizes the oscilloscope accuracy for the current ambient temperature For maximum accuracy recompensate the signal path if the ambient temperature changes by 5 C or more To compensate the signal path disconnect any probes or cables from the channel 1 and channel 2 input BNC connectors Then
107. ols 3 27 Measure 3 31 Meter mode 3 39 Save R ecall 3 45 Scope mode 3 48 Trigger controls 3 54 Utility 3 62 Vertical controls 3 68 THS710A THS720A THS730A amp THS720P User Manual 3 1 Introduction to Reference 3 2 THS710A THS720A THS730A amp THS720P User Manual ACQUIRE ACQUIRE Press the ACQUIRE button to set acquisition parameters indepen dently for scope mode and meter mode Acquire Menu in Scope Mode amp e Mode ACQUIRE Acquir Sample Peak Detect Envelope Set number Average of acquisi tions Stop After HOLD Button Only Single Acquisi tion Sequence Key Points Acquisition Modes You can choose one of four acquisition modes Sample Peak Detect Envelope or Average The next two pages describe these acquisition modes in detail THS710A THS720A THS730A amp THS720P User Manual 3 3 ACQUIRE Samples acquired in four Acquisition Displayed record acquisition intervals mode points Interval 1 2 3 4 Interval 1 2 3 4 e e e j Ak e eo e toe Sample f 7 Sample mode acquires one sample in each interval _ ly 7 2 o e Peak Detect Lf Peak Detect mode uses the lowest and highest samples from two consecutive intervals Sample Use Sample acquisition mode for the fastest acquisition at any SEC DIV setting Sample mode is the default mode Peak Detect Use P
108. oltage is applied to the input THS710A THS720A THS730A amp THS720P User Manual 1 3 Getting Started Input and Output Connectors All input and output connectors are located on the top and side panels as shown below See the back of the instrument for maximum voltage ratings WARNING To avoid shock hazard the DC input and I O port hole plugs must remain closed in wet or damp conditions CH 1 aa SAA CH2 SCOPE INPUTS SEE BACK OF INSTRUMENT A VOLTAGE RATING DC INPUT 12V 1A MAX 7 a Com Top panel th PROBE COMP S5V IL j RS 232 e METER INPUTS QS SEE BACK OF INSTRUMENT FOR MAXIMUM VOLTAGE RATING Side panel 1 4 THS710A THS720A THS730A amp THS720P User Manual Getting Started Replacing the Battery Pack For portable operation use the rechargeable battery pack You can replace the battery pack without losing any saved information The current setup saved setups saved waveforms and saved data are all stored in nonvolatile memory that does not depend on battery power To prevent loss of saved information set the ON STBY switch to STBY before removing the battery back WARNING To avoid shock hazard the battery door must remain closed in wet or damp conditions WY Sy see Battery pack D THS710A THS720A THS730A amp THS720P User Manual 1 5 D Getting Started Battery Life From a f
109. on Because of the isolated channels the meter common lead and the scope reference leads do not have to be connected to the same reference voltage Continuity A test to verify electrical conductivity from one point to another Cursors Paired markers that you can use to make measurements between two waveform locations The oscilloscope displays the values expressed in volts time or degrees of the position of the active cursor and the distance between the two cursors DC Coupling A mode that passes both AC and DC signal components to the circuit Available for both the trigger system and the vertical system Digital Real Time Digitizing A digitizing technique that samples the input signal with a sample frequency of four to five times the oscilloscope bandwidth Combined with sinx x interpolation all frequency components of the input up to the bandwidth are accurately displayed Digitizing The process of converting a continuous analog signal such as a waveform to a set of discrete numbers representing the amplitude of the signal at specific points in time THS710A THS720A THS730A amp THS720P User Manual Glossary 3 Glossary Glossary 4 Diode Test A test to verify polarity and measure the forward voltage drop of a semiconductor junction Displacement Power Factor DPF Cosine of the phase angle between fundamental components of the voltage and current waveforms Display The word used to refer to the screen or
110. orm the Compensate Signal Path operation again Oscilloscope Specifications Acquisition Acquisition Modes Sample Normal Peak detect Envelope and Average Acquisition Rate Up to 25 waveforms per second 2 channels sample acquisition typical mode MAG on no measurements Single Sequence Acquisition Mode Acquisition Stops After Sample Peak Detect Single acquisition one or two channels simultaneously Average Envelope N acquisitions one or two channels simultaneously N is settable from 2 to 256 or co THS710A THS720A THS730A amp THS720P User Manual A 1 Appendix A Specifications Oscilloscope Specifications Cont Inputs Input Coupling DC AC or GND Input Impedance 1 MQ 1 in parallel with 25 pF 2 pF DC Coupled Maximum Voltage Overvoltage Category Maximum Voltage Between Signal and CAT II Environment refer to 300 Vams Common at Input BNC page A 19 CAT III Environment refer to 150 Ves page A 19 For steady state sinusoidal waveforms derate at 20 dB decade above 100 kHz to 13 Vo at 3 MHz and above Also refer to Overvoltage Category description on page A 19 Maximum Voltage 600 Vrms CAT II or 300 Vays CAT Ill using rated connectors Between Common and or accessories Earth Ground at BNC 30 Vrms 42 4 Vox using noninsulated connectors or accessories Maximum Voltage 30 Vrms 42 4 Vix using noninsulated connectors or accessories Channel to Channel Commons Channel to Channel 1
111. ortion of the waveform that is displayed 3 14 THS710A THS720A THS730A amp THS720P User Manual DISPLAY HARMONICS Tek Run 25M5 fs Average F NOTE The above XY display example shows the I V characteristic of a switching power MOSFET The current waveform displayed in the vertical axis is measured using a Tektronix A6302 current probe and AM503B current probe amplifier The following functions do not work in XY display format m Ref or Math waveforms Cursors m Horizontal MAG m Autorange resets display format to YT THS710A THS720A THS730A amp THS720P User Manual 3 15 DISPLAY HARMONICS 3 16 Display Menu in Harmonics Mode THS720P Key Points MILIMUFII Show All from Select Odd from group of Even from harmonics Display Contrast Pa ee Set contrast THD Method THD F THD R Probes Ch 1 Probe Set conver Ch 2 Probe sion factor or probe attenuation Instrument Settings When you turn on Harmonics the TekScope instrument is automatically configured as shown below If you change the settings measurement accuracy is not guaranteed The DMM REF A REF B and cursors are turned off m The channel 1 probe type is set to Voltage The channel 2 probe type is set to Current Math is set to Ch 1 x Ch 2 m The channels are set to DC coupling Invert off and 20 MHz bandwidth limit m The trigger is set to Edge Ch 1 source
112. other dynamic signals up to the maximum voltage rating Because you can connect to references other than ground you can take many measurements that would otherwise require an oscillo scope with a differential input THS710A THS720A THS730A amp THS720P User Manual 2 37 Power Measurement Application Examples Measuring Instantaneous Power Dissipation in a Switching Transistor The output transistor in a switching power supply is hotter than it should be You are concerned about its peak power dissipation Set up the TekScope instrument to measure the instantaneous power dissipation of the transistor using an optional current probe 100 mV A q _ Voltage waveform Ch 1 Current waveform Ch 2 Power waveform Math 2 38 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples Setup to Measure Instantaneous Power Dissipation weTeR TOGGLE a OF ma a CH2 Probe Type Current Set to Probe 100 mV A AUTO RANGE MATH Math Chl x Ch2 Operation CURSOR Cursor Paired Set cursor Function Move the cursor along the power MATH waveform and read the instantaneous power in the cursor readout for example 5 63 W Going Further Measure the average power dissipation in the transistor mean value of the power wavefor
113. ource output level to 0 V 2 Set up the TekScope instrument using the following steps T Ea SAVE Recall Saved Recall Factory RECALL Setup Setup OK Recall Factory a E VERTICAL Probe Type Voltage Probe Setto 1X MENU ACQUIRE Acquire Mode Set to 16 MEAS Select Mean Measrmnt OK Select Measrmnt You may need to press Select Page to display this selection 3 Connect the TekScope instrument to the DC voltage source as shown below DC voltage source a Dual banana 8 to bnc adapter BNC cable D 6 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification 4 For each VOLTS DIV setting listed below perform the following steps a Set the DC voltage source output level to the positive voltage listed and then record the mean measurement as V pos b Reverse the polarity of the DC voltage source and then record the mean measurement as Vneg c Calculate Vaitf Vpos Vneg and then compare Vaiff to the accuracy limits in the table Accuracy Limits VOLTS DIV Setting Output Levels for Vditt 5 mV div 34 05 mV to 35 95 mV 500 mV div 3 405 V to 3 595 V 2 Vidiv 13 62 V to 14 38 V 10 V div 68 1 V to 71 9 V 5 Set DC voltage source output level to 0 V 6 To check channel 2 repeat step 2 su
114. pendix A Specifications DMM Specifications Cont Continuity Check Indication typical Open Circuit Voltage typical Test Current typical Diode Check Range Voltage Accuracy typical Open Circuit Voltage typical Test Current typical Data Logger Horizontal Scale Range Vertical Zoom Range General Specifications Display Display Type Display Resolution Display Contrast Backlight Intensity typical THS710A THS720A THS730A amp THS720P User Manual An audible tone is generated when measured resistance is below 50 Q 4V 1 mA Zero to 2 V measures forward voltage drop of semiconductor junction 25 4V 1 mA 30 s div to 24 hours div 4 minutes to 8 days full scale 2X 5X or 10X 4 7 in 120 mm diagonal liquid crystal 320 horizontal by 240 vertical pixels Adjustable temperature compensated 35 cd m A 15 Appendix A Specifications General Specifications Cont RS 232 Interface Device Type DTE at RJ 45 connector Pin Number at Pin Number at RJ 45 9 pin Null Connector Pinout Signal Modem Adapter aie a e ais s s fi oh ae a_i ee RTS out TXD out RXD in DTR out CTS in RTS out DSR in not used 4 DCD in not used 7 Probe Compensator Output Output Voltage typical 5 0 V into gt 1 MQ load Frequency typical 1 2 kHz ep J A 16 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications General Spec
115. r 1 6 MAG button 3 28 manual conventions vi math waveform allowed units 3 70 application example 2 38 functions 3 70 max measurement 3 35 max statistic 3 38 3 44 max min statistic 3 38 mean measurement 3 35 MEAS button 2 5 3 31 measurement applications continuity 2 19 data logger 2 40 diode junction 2 19 floating 2 12 2 36 frequency 2 20 motor current 2 50 phase 3 12 power 2 38 2 46 propagation delay 2 22 resistance 2 18 measurement definitions gated measurements 3 34 harmonics 3 18 A 8 meter mode 3 38 power measurements 3 20 A 9 scope mode 3 35 measurement gating 3 34 measurement qualifier 3 53 menus acquire 2 4 3 3 cursor 2 5 3 11 display 2 5 3 13 horizontal 2 5 3 27 how to use 2 1 measure 2 5 3 31 meter 3 39 overview 2 4 save recall 2 4 3 45 trigger 2 5 3 54 utility 2 5 3 62 vertical 2 5 3 68 meter deluxe lead set C 3 lead set C 1 noise reject 3 73 range 3 43 THS710A THS720A THS730A amp THS720P User Manual Index 3 Index METER button 3 39 meter mode features 1 3 how to use 2 9 min measurement 3 35 min statistic 3 38 3 44 motor trigger how to use 3 61 N negative duty cycle measurement 3 36 negative overshoot measurement 3 36 negative width measurement 3 36 nonvolatile memory saving information into
116. r Manual Power Measurement Application Examples Setup to Monitor Power MILI UFIL MILIINUFIT nai TORRE MILUDUFIL O m Fiy score m L Probes Current Set to Probe CH2 100 mV A The TekScope instrument continuously measures voltage and current and then calculates the power statistics shown in the box Use the average minimum and maximum statistics to characterize the load on this branch circuit Going Further The numbers displayed above the box are instantaneous power measurements You can use them to measure short term variations The power statistics accumulate from the beginning of an acquisi tion To reset the statistics press HOLD twice to stop and restart the acquisition THS710A THS720A THS730A amp THS720P User Manual 2 47 Power Measurement Application Examples Measuring Motor Start Up Current A circuit breaker trips when a motor starts Connect the TekScope instrument to measure the transient current drawn by the motor before the circuit breaker trips 100 mV A ooo Oro 2 48 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Application Examples Setup to Measure Transient Current simcinuei METER USMERE TOGGLE use BE SA et a SCOPE MILINUHII HAUAD A CH1 Probe Type Current Set to
117. racteristics of waveforms Adjusts scroll rate of data logger display 9 VERTICAL Adjusts scale and position of waveform Sets input parame ters Adjusts position of data logger display Zooms data logger display Sets volts scale Changes meter range Changes vertical scale THS710A THS720A THS730A amp THS720P User Manual 2 5 Functional Overview Using the Dedicated Buttons You can use the dedicated buttons below to take direct actions These buttons do not require the use of menus CLEAR MENU Om 4 1 Be E Now Ss VERTICAL EE HORIZONTAL SE TRIGGER EB VOLTS DIV POSITION TRIGGER aups CH2 POSITION LEVEL S amw 7 SET LEVEL WAVEFORM MAG TO 50 E 13 12 11 10 9 8 7 1 HARD COPY Initiates a hard copy using the RS 232 port 2 HOLD Stops restarts oscilloscope acquisition or holds resets meter readout 3 AUTORANGE Selects oscilloscope or meter Autorange function 2 6 THS710A THS720A THS730A amp THS720P User Manual Functional Overview 4 CLEAR MENU Clears menu from display 5 TRIGGER LEVEL v Adjusts trigger level 6 SET LEVEL TO 50 Sets trigger level to midpoint of oscilloscope waveform 7 HORIZONTAL POSITION Adjusts oscilloscope waveform horizontal position 8 MAG f 3 Turns 10X horizontal magnification on and off 9 SEC DIV Adjusts horizontal scale factor for oscilloscope or data logger 10 VERTICAL POSITION
118. s Ext 200m When gating is off the instrument takes measurements over the entire waveform record 3 34 THS710A THS720A THS730A amp THS720P User Manual MEAS Scope Mode Measurement Definitions Name Tle HUL Ampl BrstW cMean cRMS Fall Freq High Low Max Mean Min Definition Measured over the entire waveform Amplitude High 100 Low 0 The duration of a burst Measured over the entire waveform The arithmetic mean over the first cycle in the waveform The true Root Mean Square voltage over the first cycle in the waveform Time that the falling edge of the first pulse in the waveform takes to fall from 90 to 10 of its amplitude Reciprocal of the period of the first cycle in the waveform Measured in Hertz H2 The value used as 100 Calculated using either the min max or the histogram method Measured over the entire waveform The value used as 0 Calculated using either the min max or the histogram method Measured over the entire waveform The maximum amplitude The most positive peak voltage measured over the entire waveform The arithmetic mean over the entire waveform The minimum amplitude The most negative peak voltage measured over the entire waveform THS710A THS720A THS730A amp THS720P User Manual 3 35 MEAS Scope Mode Measurement Definitions Cont Name FEE a 3 36 Duty Over Width Pk Pk Period
119. s voltage lags current DPF Measurement Displacement power factor DPF cos Power Factor Measure 0 05 ments Accuracy THS710A THS720A THS730A amp THS720P User Manual A 9 Appendix A Specifications Oscilloscope Specifications Cont With P6117 Probe Analog Bandwidth DC THS710A THS720A THS720P THS730A coupen 60 MHz 100MHz 100MHz 200 MHz 90 MHz 90 MHz 180 MHz above 35 C above 35 C above 35 C Probe Attenuation 10X Maximum Voltage Overvoltage Category Maximum Voltage Between Probe Tip and Refarancalead CAT II Environment refer to 300 Vas page A 19 CAT III Environment refer to 150 Vams page A 19 For steady state sinusoidal waveforms derate at 20 dB decade above 900 kHz to 13 Vams at27 MHz and above Also refer to Overvoltage Category description on page A 19 Maximum Voltage 30 Vas 42 4 Vox Between Reference Lead and Earth Ground Using P6117 Probe Maximum Voltage 30 Vas 42 4 Vox Channel to Channel Reference Leads Using P6117 Probes A 10 THS710A THS720A THS730A amp THS720P User Manual Appendix A Specifications Oscilloscope Specifications Cont With P5102 Probe Analog Bandwidth DC THS710A THS720A THS720P THS730A Coupled 60 MHz 100 MHz 100 MHz 100 MHz 90 MHz 90 MHz above 35 C above 35 C Probe Attenuation 10X Maximum Voltage Overvoltage Category Maximum Voltage Between Probe Tip and Reference Lead See refer to 1000 Vams DC Coupled pag
120. so that the data logger horizontal scale is one day per division Meter measurements which occur at a rate of approximately ten per second are captured over an eight day period of time Going Further You can position and zoom the data logger plot to see more resolution refer to page 3 72 for information Use the cursors to determine when a power disturbance occurred to within the nearest 24 minutes J simcinuei METER nai MILUINUFI TOGGLE WAU ANA MILIINUFII O SCOPE e B C SCOPE CURSOR Cursor V Bars Set cursor Function Move either cursor to the location of the power disturbance Read the relative time in the cursor readout for example 5 day 7 hr 12 min Calculate the absolute time and date of the disturbance using the current time and this measurement MTLIINUFI WAU ANT THS710A THS720A THS730A amp THS720P User Manual 2 41 Power Measurement Application Examples Detecting a Missing Power Cycle You suspect that power distribution switches are causing an infrequent missing power cycle at the equipment you are servicing Connect the TekScope instrument to detect a missing cycle on the 60 Hz AC power line 2 42 THS710A THS720A THS730A amp THS720P User Manual Power Measurement Applic
121. source output level to 0 V 2 Set up the TekScope instrument using the following steps METER 3 Connect the TekScope instrument to the AC voltage source as shown below AC voltage source anana cables B D 20 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification 4 Set the AC voltage source output frequency to 500 Hz 5 For each range set the AC voltage source output to the level listed below and then compare the meter reading to the accuracy limits Range Output Level Accuracy Limits 400 mV 352 3 mV to 367 7 mV 4V 0 583 V to 0 617 V 4V 3 523 V to 3 677 V 40 V 35 23 V to 36 77 V 400 V 352 3 V to 367 7 V 640 V 559 V to 593 V 6 Set the AC voltage source output level to 0 V THS710A THS720A THS730A amp THS720P User Manual D 21 Appendix D Performance Verification Check Resistance Accuracy 1 Set up the TekScope instrument using the following steps MILIIMUFIL Tau ana ans METER 2 Connect the TekScope instrument to the resistance standard as shown below Resistance standard Banana cables J D 22 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification
122. stics can represent data that is no longer displayed in the data logger plot Key Points Readout The statistic readouts appear in the upper right corner of the display See page 3 39 for the location THS710A THS720A THS730A amp THS720P User Manual 3 37 MEAS Choosing Statistics Choose up to three from the following statistics Statistic Definition Max The maximum value of all meter readings since the last reset Avg The arithmetic average of all meter readings since the last reset Min The minimum value of all meter readings since the last reset AO The baseline value used in the RelA calculation This value is updated only when the RelA function is turned on or off Max Min The difference between the maximum and minimum meter readings since the last reset Reset Conditions The calculated statistics are reset to zero if you make any of the following control changes Turn off the HOLD function m Change the measurement function from VAC to VDC for example m Change the probe scale factor m Change the RelA value m Change the data logger scroll speed Beep New Max Min You can turn on a beep that sounds any time the TekScope instrument updates the Max or Min statistic 3 38 THS710A THS720A THS730A amp THS720P User Manual METER Mode METER Mode Press the METER button to enter meter mode The meter reading and statistics update about three times per second METER aa MI
123. t Press the t rocker to display subsequent pages of the error log THS710A THS720A THS730A amp THS720P User Manual 3 67 VERTICAL Controls VERTICAL Controls You can use the vertical controls to display waveforms adjust vertical scale and position and set input parameters In the THS720P TekScope instrument the vertical controls are also used to display waveform harmonics Refer to page 3 16 for a description of harmonics es VERTICAL E VOLTS DIV aups CH2 POSITION WATTS WAVEFORM Vertical Operations in Scope Mode All vertical operations affect the selected waveform Press the CH 1 CH 2 MATH REF A or REF B button to select that waveform In harmonics mode THS720P the CH 1 CH 2 and MATH buttons display harmonics of voltage current and power waveforms To remove a waveform from the display select the waveform and then press the WAVEFORM OFF button Press the MENU button to display the vertical menu The contents of the vertical menu depend on which waveform is selected 3 68 THS710A THS720A THS730A amp THS720P User Manual VERTICAL Controls Channel 1 or Channel 2 Vertical Menu The vertical menu contains the following items when channel 1 or channel 2 is the selected waveform VERTICAL MENU ab Invert Invert O ff Invert On Bandwidth Full Bandwidth a MHz Probe Type Current Set conversion factor Voltage Probe Set probe
124. t to the leveled sine wave generator as shown below Leveled sine wave 50 Q feedthrough generator terminator Output BNC cable D 14 THS710A THS720A THS730A amp THS720P User Manual Appendix D Performance Verification 3 Set the leveled sine wave generator frequency to 200 MHz if you are checking a THS730A or to 100 MHz if you are checking a THS710A THS720A or THS720P Set the TekScope instrument VOLTS DIV to 500 mV div Press MAG Set the TekScope instrument SEC DIV to 10 ns div NH wo A Set the leveled sine wave generator output level to approximately 50 mVp p so that the measured amplitude is approximately 500 mV The measured amplitude can fluctuate around 500 mV 8 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 9 Change the TekScope instrument setup using the following steps Se a SCOPE 10 Press SET LEVEL TO 50 Adjust TRIGGER LEVEL as necessary and then check that triggering is stable 11 Change the TekScope instrument setup using the following steps MILUMUFI uaa Fig score CS une SCOPE TRIGGER Trigger Slope rising edge 12 Proceed to the next test to check the channel 2 edge trigger sensitivity THS710A THS720A THS730A amp THS720P User M
125. tch itself with the following setup minimun METER ia MILIN Tau anna MILUMUFIL SCOPE CS MILUINUEII TRIGGER Trigger Type Pulse EGGERS iae ee Trigger Chl Source Polarity and Positive Set width to Width 500 us Trigger When Less Than Width A triggers occurs only if a positive pulse narrower than 500 us half the period of the clock signal is detected THS710A THS720A THS730A amp THS720P User Manual 2 27 General Purpose Application Examples Triggering on a Third Signal 2 28 A metal forming machine produces an index pulse for each revolution of its main shaft Connect the external trigger input of the TekScope instrument to the index pulse so you can monitor the output of two transducers while you vary the operating speed of the machine External trigger signal Transducer 1 Ch 1 Transducer 2 Ch 2 THS710A THS720A THS730A amp THS720P User Manual General Purpose Application Examples Setup to Use External Trigger METER ie SCOPE TRIGGER Trigger Type MENU Trigger External Source Connect the index pulse to the meter inputs which now function as the external trigger input Adjust the TRIGGER LEVEL rocker for stable triggering on the index pulse signal
126. tifications and Compliances Meets the intent of Directive 89 336 EEC for Electromagnetic Compatibility and Low Voltage Directive 73 23 ECC for Product Safety as amended by 93 68 EEC Compliance was demon Strated to the following specifications as listed in the official J ournal of the European Communities EC Declaration of Conformity EN 55011 Class A Radiated and Conducted Emissions 3 EN 50081 1 Emissions EN 60555 2 Power Harmonics EN 50082 1 Immunity IEC 801 2 Electrostatic Discharge IEC 801 3 RF Radiated2 IEC 801 4 Fast Transients IEC 801 5 Surges EN 61010 1 A2 Safety 1 Tektronix supplied ferrite bead required on instrument end of RS 232 cable 2 Performance criteria lt 5 0 div increase in peak to peak noise Sample acquisition mode full bandwidth otherwise lt 1 0 div increase in peak to peak noise 3 Applies to instrument operating from Tektronix supplied AC adapter Adjustment Interval The recommended adjustment interval is one year A 20 THS710A THS720A THS730A amp THS720P User Manual ee Appendix B Factory Setup The table below lists the state of the TekScope instrument after you recall the Factory Setup Control Acquire mode Acquire stop after Acquire of averages Acquire of envelopes Channel selection Cursor H Bar 1 position Cursor H Bar 2 position Cursor V Bar 1 position Cursor V Bar 2 position Cursor function Cursor time units Delayed time base time div Delay time delay
127. to verify that your TekScope instrument is operating correctly 1 Press the ON STBY button to turn on the TekScope instrument 2 After a few seconds you should see a window with the message Power On self check PASSED Press the CLEAR MENU button 3 Press the SCOPE button 4 Connect the oscilloscope probe to the channel input BNC Attach the probe tip and reference lead to the PROBE COMP connectors on the right side of the TekScope instrument Probe reference lead to b Probe tip to PROBE COMP THS710A THS720A THS730A amp THS720P User Manual 1 9 Getting Started 5 Press the AUTORANGE button Within a few seconds you should see a square wave in the display approximately 1 2 kHz If you want repeat steps 4 and 5 for channel 2 of the oscillo scope Press the METER button Press the VDC bezel button Press the AUTORANGE button ANN Connect meter leads to the TekScope instrument and touch the meter lead tips to the PROBE COMP output as shown below DMM lead to PROBE COMP COM lead to 00000 009 10 Verify that the TekScope instrument measures an average DC voltage of 2 5 0 25 V THS710A THS720A THS730A amp THS720P User Manual Operating Basics E E Functional Overview This section covers the following
128. troduction to Reference 0c ccc ccc c eee c wees 3 1 ACOUIRE e at ee AE hg 8 Relea E Sekai a 8 3 3 AUTORANGE chau ders tik eee od ae eee hed ba aerate 3 8 CURSOR sale Sucre Soh faa hts ih as aca aga doe OE E eae hag 3 11 DISPLAY HARMONICS 000 e cece eee eens 3 13 HARD COPY 30555 coord aa da oce aoe 688 ahs doko 3 22 HOLD o Tuotenr Cap Oho ah Gack bia oDee eA ewe ba adie ses 3 26 HORIZONTAL Controls lt 4 dyads oh dete eke taort sees 3 27 MEAS Sx oles Wd hey Sota ce Poe SVMS thats Male EAE 3 31 METER Mode 5 ss 5 60 n 9 duane he abot cb oars ea E yes 3 39 SAVE RECALDE ice cot atone yo aE E A tea Ky ee masa 3 45 SCOPE MOde 65 3s yj awacee cas ce We n e ener yes setae s 3 48 TRIGGER Controls 442 4tie eho eao Sad eee Maree ok 3 54 UTI 5 tora pon bate Sat eed Coe ews ny PS Ghee 3 62 VERTICAL Controls sei Os Sod Legedueeees ya San oe 3 68 Appendices Appendix A Specifications cece cece eee eee A 1 Appendix B Factory Setup cece cece cee eee B 1 Appendix C Accessories cece eee e eee ce eens C 1 Appendix D Performance Verification D 1 Test Record ovGtatoe eater sao N E tine See ae ee eu eas D 2 Performance Verification Procedures 000 D 4 Appendix E General Care and Cleaning E 1 General Carei sw besiege pa KT i A a E a ea E 1 Clean Sse oei hanao tens ate A NN E 1 Glossary and Index ii THS710A THS720A THS730A amp TH
129. uency than the actual input signal THS710A THS720A THS730A amp THS720P User Manual Glossary 1 Glossary Attenuation The degree the amplitude of a signal is reduced when it passes through an attenuating device such as a probe or attenuator the ratio of the input measure to the output measure For example a 10X probe attenuates or reduces the input voltage of a signal by a factor of 10 Auto Trigger Mode A trigger mode that causes the oscilloscope to automatically acquire if it does not detect a triggerable event Autorange A DMM feature that automatically sets the range to the optimum setting to measure an input signal Also an oscillo scope feature that automatically produces a stable waveform of usable size In both cases autorange continues to change the instrument settings to track additional signal changes Average Acquisition Mode A mode in which the oscilloscope acquires and displays a waveform that is the averaged result of several acquisitions This reduces the apparent noise The oscilloscope acquires data as in the sample mode and then averages it according to a specified number of averages Backlight The illumination behind the liquid crystal display Bezel Buttons The row of buttons below the display that selects items in the menus Glossary 2 THS710A THS720A THS730A amp THS720P User Manual Glossary Common Lead The meter lead attached to the reference voltage in a measure ment applicati
130. ull charge you can operate the TekScope instrument continuously for approximately two hours You can extend the battery life by using automatic Power Off Time out or Backlight Time out Refer to page 3 65 for a description of these features The TekScope instrument turns off automatically when the battery runs low A low battery message appears in the display about ten minutes before the automatic shutdown Nickel cadmium batteries can lose capacity permanently if not allowed to discharge completely Whenever possible allow the battery to discharge completely before you recharge it to minimize this capacity loss Charging the Battery Pack You can use external power to charge the battery pack while it is in the TekScope instrument Or you can charge the battery pack with the optional external battery charger NOTE Before using the battery for the first time it must be charged Typical battery charging times are listed below Configuration Typical Charging Time Battery pack in TekScope instrument 9 hours Battery pack in external charger 1 5 hours CAUTION To avoid loss of saved information when a battery pack is not installed set the ON STBY control to STBY before disconnecting external power 1 6 THS710A THS720A THS730A amp THS720P User Manual Getting Started Using External Power Using external power from the AC adapter or cigarette lighter adapter has the following advantages m Saves internal battery

THS710A, THS720A, THS730A & THS720P TekScope™ User Manual

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THS710A, THS720A, THS730A &amp; THS720P TekScope&trade; User Manual

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THS710A, THS720A, THS730A & THS720P TekScope™ User Manual