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Tektronix THM500 Series, Instruction Manual

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Bench Test Instruments and Handheld Oscilloscopes Basic Service

i

Table of Contents

THM500 Series Instruments

1

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THM500 Series Specifications

3

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THM500 Series Performance Verification

9

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Test Equipment

10

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Functional Test

11

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DMM Verification

12

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Oscilloscope Verification

15

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Summary of Contents for THM500 Series

Page 1: ...Instructions Manual THM500 Series Instruments 070 9857 01 ...

Page 2: ...d Oscilloscopes Basic Service i Table of Contents THM500 Series Instruments 1 THM500 Series Specifications 3 THM500 Series Performance Verification 9 Test Equipment 10 Functional Test 11 DMM Verification 12 Oscilloscope Verification 15 ...

Page 3: ...Table of Contents ii Bench Test Instruments and Handheld Oscilloscopes Basic Service ...

Page 4: ...the last held value D Hold H AC and DC current measurement with optional current probe The oscilloscope portion of the instruments feature an autoranging mode that completely automates operation In this mode a usable signal is always displayed without operator intervention If desired you can switch to manual mode by selecting any control In manual mode you can specify general oscilloscope operatio...

Page 5: ...instruments will also store waveforms settings and displays With these features you can do the following H Recall settings H Automate test procedures H Save waveforms and screens in the field for later analysis H Transfer waveforms and screens to a personal computer requires optional communications adapter ...

Page 6: ...d for the convenience of the user The specifications listed for the THM565 also apply to the THM57x series except as noted in Table 1 Table 1 How THM565 and THM57x series products differ 57x 565 Modes Line Test D Motor Test D Automotive preconfigured test setups D Vertical Mathematics capability D Invert capability D Measurements Voltage Measurement D Timing Measurement D Power Measurement D THDF ...

Page 7: ...eading 5 counts D D D Normal Mode Rejection 60 dB typical at user selectable 50 or 60 Hz D D D Common Mode Rejection 100 dB typical at user selectable 50 or 60 Hz D D D AC voltage Range and Resolution True RMS Range Resolution 400 mV 0 1 mV 4 V 1 mV 40 V 10 mV 400 V 100 mV 600 V 1 V Autorange not available on 400 0 mV range D D D Accuracy 2 of reading 5 counts for 50 or 60 Hz sine wave Add 2 of re...

Page 8: ... as spikes drop outs and substantial frequency variations will be captured and counted D D H Automatic print of failures D D H Automatic screen save on failures 1 8 H Time and date stamp on failure D Motor Test Will stabilize trigger on pulse width modulated signals generated by variable speed AC motor drives D Vertical Channels Each channel is identical 1 2 2 Probe Interface Shrouded banana jack ...

Page 9: ...taneously D D D Roll 200 ms div to 60 s div D D D Measurements Cursors Voltage difference between cursors DV Time difference between cursors DT Reciprocal of DT in Hertz 1 DT D D D Voltage and Amperes For voltage or current probes Maximum MAX Minimum MIN Peak Peak P P D D D Timing Frequency FREQ Period PER D D D Power Calculates true RMS current voltage true power and power factor from CH 1 curren...

Page 10: ... Type Super Twisted Liquid Crystal Display D D D Size Width 120 mm 4 72 inch Height 60 mm 2 36 inch D D D Display Resolution 256 pixels horizontal 128 pixels vertical D D D Contrast User adjustable D D D Backlight Electroluminescent D Waveform Graticule 8 divisions vertical 10 divisions horizontal Default crosshair grid or none 1 vertical division 15 pixels 1 horizontal division 25 pixels D D D Po...

Page 11: ...o resonance found Test performed on each of three axes D D D Half sine Shock Operating 30 g with pulse duration of 11 ms Three shocks per axis Test Duration 10 minutes at the peak resonance condition 33 Hz if no resonance found Test performed on each of three axes D D D EMC Emissions EN 55011 radiated class A D D D Immunity IEC 801 2 electrostatic discharge Up to 8 kV IEC 801 3 radiated immunity 3...

Page 12: ...uring the verification process H The instrument operates continuously for a 5 minute period before the verification begins The performance verification procedure should be performed annually or after every 2000 hours of operation if used infrequently Table 6 lists the equipment needed to complete the performance verification procedures The THM500 Series performance verification consists of the che...

Page 13: ...put must provide 5 V into 50 W with 3 amplitude regulation at 50 kHz to 5 MHz Wavetek 9100 Universal Calibration System with Oscilloscope Calibration Module Option 250 Time Mark Generator Output must provide 1 ms markers 0 5 at 1 V amplitude Fluke 5500A Multi product Calibrator with Oscilloscope Calibration Option 5500 SC Calibrator 00 S DC Voltages 300 mV 3 V 30 V 300 V 500 V with accuracy of 0 1...

Page 14: ...ON OFF button to display the menus NOTE The THM575 can display the menus in more than one language The language selections are located in the Utility menu 4 Select UTILITY STATUS DISPLAY from the menus 5 Press the SELECT button Verify that the correct THM500 series instrument model number is displayed 6 Use the menus to select RESET ALL It will appear underlined 7 Press the SELECT button and wait ...

Page 15: ...play at the lower right does not indicate AUTO press the Y and B buttons simultaneously to set the RANGE to AUTO 2 Connect the voltage source output to the THM500 series instrument DMM and COM inputs as shown in Figure 2 Assure that the ground connection for each adapter connects to the common or ground connector of its associated instrument 3 Set the voltage source for DC output Voltage source TH...

Page 16: ...corner does not indicate AUTO press the Y and B buttons simultaneously to set the RANGE to AUTO 2 Set the voltage source to 60 Hz AC output 3 For each row of Table 8 use the Y and B buttons to set the THM500 series instrument to the range specified in the first column then set the voltage source to the output voltage specified in the second column Verify that the THM500 series instrument readout i...

Page 17: ...e THM500 series instrument to the range specified in the first column then set the resistance source to the resistance specified in the second column Verify that the THM500 series instrument readout is within the range listed in the third column Table 9 Resistance accuracy test limits Instrument range Resistance source Instrument readout 400 W 100 W 99 3 to 100 7 4 kW 1 kW 0 993 to 1 007 40 kW 10 ...

Page 18: ...e If necessary press the SELECT button to point to CH 1 2 Use a patch cord to short the THM500 series instrument COM and CH 1 inputs as shown in Figure 4 THM5xx CH 1 COM Patch cord Figure 4 Noise test setup 3 Press the SCALE button until the readout in the lower right corner indicates SCALE then use the Y and B buttons to set the vertical scale to 10 mV div 4 Use the menus to set the sampling mode...

Page 19: ...ION SCALE button until the readout in the lower right corner shows POS then use the Y and B buttons to position the trace vertically at the center of the display 5 Verify that as you remove the shorting patch cord the waveform does not move more than three pixels vertically 6 If your THM500 series instrument is equipped with two channels repeat steps 2 through 5 above for CH 2 7 Disconnect the tes...

Page 20: ...es instrument menus to set CH 1 CPLG to DC then turn the menus off 6 Press the THM500 series instrument CURSORS TRIGGER button until the readout shows TRIG in the lower right corner then use the Y and B buttons to set the trigger level to one division above the bottom of the displayed signal Use the A or button to set the trigger to rising edge 7 Press the THM500 series instrument POSITION SCALE b...

Page 21: ...na plugs to apply test signals to the THM500 series instrument do not touch the exposed conductors 3 For each row of Table 10 perform the following steps a Use the THM500 series instrument Y and B buttons to set the vertical scale to the setting listed in the first column b Set the voltage source output to the value in the second column c Press the THM500 series instrument POSITION SCALE button to...

Page 22: ...52 V to 648 V 4 If your THM500 series instrument is equipped with two channels repeat Step 3 all tests above on CH 2 5 Disconnect the test setup The following check assesses the analog bandwidth 1 Connect the leveled sine wave generator output to the THM500 series instrument CH 1 and COM inputs Use a 50 W termination as shown in Figure 8 Assure that the ground connection for each adapter connects ...

Page 23: ... instrument is greater than or equal to the value listed in the third column Use the cursors for greater accuracy Table 11 Bandwidth test settings THM500 series vertical scale Leveled sine wave generator amplitude Leveled sine wave generator test frequency Instrument waveform amplitude 100 mV div 6 divisions 600 mVp p readout 5 MHz 4 2 divisions1 420 mV cursor readout 500 mV div 6 divisions 3 00 V...

Page 24: ...v and the A and buttons to set the time base to 2000 ms div 5 Use the THM500 series instrument menus to set the sampling mode to SPIKE DETECT then remove the menus from the display 6 Verify that the peak to peak amplitude is less than 0 5 divisions 25 mVp p The following check assesses the crosstalk between oscilloscope channels If your instrument has only one channel THM550 do not perform this te...

Page 25: ... series instrument menus to set the sampling mode to SPIKE DETECT then remove the menus from the display 5 Adjust the leveled sine wave generator to display five divisions peak to peak at 5 MHz NOTE The 5 MHz waveform is aliased and appears untriggered 6 Press the THM500 series instrument WAVEFORM ON OFF button to turn the CH 1 waveform display off 7 Press the THM500 series instrument SELECT butto...

Page 26: ...strument POSITION SCALE button until the readout shows SCALE in the lower right corner then use the Y and B buttons to set the CH 1 vertical scale to 5 mV div 6 Verify that the offset is less than four pixels from the center graticule line 7 Use the Y and B buttons to set the vertical scale to the next range 8 Repeat steps 6 through 7 above until you have checked all ranges 10 mV div through 500 V...

Page 27: ...THM500 Series Performance Verification 24 Bench Test Instruments and Handheld Oscilloscopes Basic Service ...

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