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TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA

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Содержание P5100A

Страница 1: ...x P5100A P5150 High Voltage Probes Performance Verification and Adjustments ZZZ Technical Reference P077053002 077 0530 02 ...

Страница 2: ......

Страница 3: ...P5100A P5150 High Voltage Probes Performance Verification and Adjustments ZZZ Technical Reference xx Revision A www tektronix com 077 0530 02 ...

Страница 4: ...d and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc Contacting Tektronix Tektronix Inc 14150 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support In North America call 1 800 833 ...

Страница 5: ...s 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...

Страница 6: ......

Страница 7: ...eface vi P5100A Performance Verification 1 Test Equipment 1 Test Setup 1 System DC Attenuation Accuracy Check 2 Test Record 4 P5100A Adjustments 5 DC Gain and High Frequency HF Compensation 7 Reassemble the Probe 12 P5150 Adjustments 13 P5100A P5150 High Voltage Probes Technical Reference i ...

Страница 8: ...Table of Contents ii P5100A P5150 High Voltage Probes Technical Reference ...

Страница 9: ... through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe all terminal ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ra...

Страница 10: ...d result in damage to this product or other property Symbols and 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 The following symbol s may appear on the product...

Страница 11: ... of rendering first aid and resuscitation is present Disconnect power To avoid electric shock switch off the instrument power then disconnect the power cord from the mains power Use care when servicing with power on Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacin...

Страница 12: ...rmance and for making adjustments to achieve the warranted specifications The P5150 probe section describes adjustment procedures only WARNING The procedures included in this manual are for use by qualified service personnel only vi P5100A P5150 High Voltage Probes Technical Reference ...

Страница 13: ...quipment Minimum requirements Recommended test equipment 1 Oscilloscope 500 MHz BW 1 MΩ 1 input R Tektronix DPO4104B Calibration generator 0 5 accuracy 10 Hz square wave 5 Vp p output Fluke 9500B with 9530 active head Adapter BNC Female to female barrel 103 0028 xx Adapter probe tip to BNC Probe tip to male BNC 013 0291 xx Pulse generator 2 500 ps rise time 100 ns pulse width 3 Vp p into 50 Ω Pico...

Страница 14: ...o 1 MΩ load 4 Enable the calibration generator output 5 Trigger the oscilloscope and center the waveform on the screen 6 Use the amplitude measurement selection on the oscilloscope to measure the generator output voltage 7 Divide the measured output from the previous step into 50 mV to derive a correction factor CF For example if you measured 50 13 mV then the CF 50 50 13 0 997 The correction fact...

Страница 15: ...ection on the oscilloscope to measure the voltage amplitude 14 Calculate the corrected amplitude Vcorr by multiplying the measured output from the previous step by the correction factor CF derived in step 7 For example a measured output of 5 04 V multiplied by a correction factor of 0 997 yields a corrected amplitude of 5 025 V 15 Verify that the corrected amplitude Vcorr is 5 V 0 088 V Record the...

Страница 16: ...e verification procedures Table 2 P5100A probe test record Probe Model Number P5100A Probe Serial Number Temperature Date of Calibration Certificate Number RH Technician Probe test Minimum Incoming Outgoing Maximum System DC Attenuation Accuracy 4 912 V 5 088 V 4 P5100A P5150 High Voltage Probes Technical Reference ...

Страница 17: ... the top and bottom cover seams Be careful to not damage the labels they must remain intact and on the probe due to regulatory requirements Figure 3 Cut the two side labels in half 2 Separate the covers by inserting a thin flat blade screwdriver into the one of the slots on the side of the compensation box The slots are hidden beneath the labels Figure 4 Separate the covers P5100A P5150 High Volta...

Страница 18: ...top cover from the probe The five adjustments that you will likely need to access are available through the openings in the metal shield If you need to access the sixth adjustment fine LF comp you must slide the metal shield away from the connector end of the probe Figure 6 P5100A probe adjustment locations 6 P5100A P5150 High Voltage Probes Technical Reference ...

Страница 19: ...uency aberrations You have installed the probe on an oscilloscope having an input capacitance near the limits of the probe compensation range To perform the high frequency compensation adjustment you will need a signal source that has all of the following characteristics Fast rise output with rise time 500 ps Output properly terminated The Picosecond Labs 2600C Pulse Generator output meets these r...

Страница 20: ...tput into 1 MΩ load 4 Locate R9 the DC gain adjustment WARNING To reduce risk of electric shock use only the provided insulated adjustment tool when making adjustments Hazardous voltages may be present inside the compensation box Figure 7 R9 DC gain adjustment location 5 Adjust the DC gain R9 to a probe output level of 5 V 0 088 V as displayed on the oscilloscope 6 Record the output level in the o...

Страница 21: ...essary do a minor adjustment to C116 for best LF flatness Figure 8 C2 LF and C116 fine LF adjustment locations Use C2 to check LF compensation range over and under compensation range Use C2 for a coarse LF adjust and use C116 to get a consistent roll up or roll off Finally go back and use C2 one last time to flatten the overall response 2 Proceed to the High Frequency HF Adjustment See page 10 P51...

Страница 22: ...response 2 Set the output level of the pulse generator to 5 volts 20 dB and the pulse width to 100 ns 3 Set the oscilloscope to vertical to 1 V division horizontal to 4 ns division averaging to 64 input impedance to 1 MΩ 4 Adjust the HF response as follows 10 P5100A P5150 High Voltage Probes Technical Reference ...

Страница 23: ... 10 20 ns area Adjust R2 for the last 5 ns If the overshoot is too great then adjust R2 to roll off the front corner and readjust R3 followed by R1 The procedure is done when the 3 adjustments have been optimized for the best overall response 5 Reassemble the probe See page 12 Reassemble the Probe P5100A P5150 High Voltage Probes Technical Reference 11 ...

Страница 24: ...e cable end As you seat the probe into the connector end of the cover pull out the spring loaded connector to allow it to clear the front edge of the cover and fully seat into the bottom cover Figure 11 Align and seat the probe into the bottom cover 4 Verify that the metal shield is properly located See Figure 11 Align the top cover onto the probe beginning at the cable end As you seat the cover o...

Страница 25: ...e tip to BNC Probe tip to male BNC 013 0291 xx BNC cable precision 50 Ω 36 in 012 0482 xx Adjustment tool Insulated straight edge 003 1433 xx Screwdriver Flat blade 1 Nine digit part numbers xxx xxxx xx are Tektronix part numbers 2 P5150 probes are intended for use with oscilloscopes that have isolated floating inputs The Tektronix TPS2024B and THS3024 oscilloscopes are the highest bandwidth float...

Страница 26: ...ow the optimized response Adjust LF compensation with C2 and if necessary do a minor adjustment to C116 for best LF flatness Figure 14 LF and fine LF adjustment locations Use C2 for a coarse LF adjust and use C116 to get a consistent roll up or roll off Finally go back and use C2 one last time to flatten the overall response 2 Proceed to the High Frequency HF Adjustment See page 15 High Frequency ...

Страница 27: ...as follows Figure 15 Areas of the waveform affected by adjustments R1 R2 and R3 First adjust R1 to flatten out to 20 30 ns Next adjust R3 for the 10 20 ns area Adjust R2 for the last 5 ns If the overshoot is too great then adjust R2 to roll off the front corner and readjust R3 followed by R1 The adjustments are complete when you have optimized the waveform 4 Slide the probe cover back over the pro...

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