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RM-26999 Calibration Procedure 

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23

 

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377699A-01  December 2020 

 

Содержание RM-26999

Страница 1: ...December 2020 RM 26999 Calibration Procedure...

Страница 2: ...re procedure before beginning the calibration process Contents Terms and Definitions 2 Calibration Overview 2 Calibration Condition Guidelines 3 Calibration Resources 4 Required Software 4 Recommended...

Страница 3: ...s the measured calibration results against the defined As Found Limits The result of the evaluation is expressed as a Pass Fail condition in the calibration certificate using an established evaluation...

Страница 4: ...ons 41 points Adjust only 5 minutes 12 connections 6 points Note Estimated test times assume the user is conducting a manual calibration For most procedures automating the calibration significantly re...

Страница 5: ...er adjustment ensure that the Test Conditions have been met before returning the DUT to NI Allow the calibrator and DMM to settle fully before taking any measurements NI recommends a settling time of...

Страница 6: ...pment NI recommends for each test performed as part of this calibration procedure NI Calibration Executive Users Refer to the Calibration Executive Help to find an updated list of test equipment for t...

Страница 7: ...fications DC Gain AC Gain BNC f to Banana Plug Adaptor Pomona Model 1269 Verifications DC Gain AC Gain Power Supply NI PS 16 Verifications DC Gain AC Gain 24 V DC 5 A BNC f to BNC f cable Verification...

Страница 8: ...rovides additional correction for errors that result from measurement such as temperature drift Refer to the DMM user documentation for more information on conducting ACAL Account for additional uncer...

Страница 9: ...imit Lower Limit Upper Limit 1000 V 5 V 1100 V 10 V 502 mV 502 mV 251 mV 251 mV 750 V 3 75 V 1100 V 10 V 377 mV 377 mV 189 mV 189 mV 500 V 2 5 V 1100 V 10 V 252 mV 252 mV 126 mV 126 mV 200 V 1 V 220 V...

Страница 10: ...ck Power off all high voltage signals before making any connections Figure 1 DC Gain Connection 1 Calibrator 7 BNC 2090A 2 Low thermal EMF cable with banana plugs 8 PXIe 6356 3 RM 26999 9 SH68F 68F EP...

Страница 11: ...connections 4 Connect the calibrator output to the appropriate channel on the DUT Wait 2 minutes for thermal EMF to stabilize Repeat 13 times once for each set of voltage input values 5 Configure the...

Страница 12: ...ement with the DMM 10 Scale the DMM measurement with the coefficients stored on the DUT EEPROM a RM 26999 Initialize Voltage Channel vi b RM 26999 lib _getChannelsFromTask vi c RM 26999 lib _filterPhy...

Страница 13: ...V 113 mVRMS 113 mVRMS 55 mVRMS 55 mVRMS 5 VRMS 0 025 VRMS 22 V 0 1 V 80 5 mVRMS 80 5 mVRMS 40 mVRMS 40 mVRMS 5 kHz 1000 VRMS 5 VRMS 1100 V 10 V 9 0 VRMS 9 0 VRMS 4 5 VRMS 4 5 VRMS 500 VRMS 2 5 VRMS 11...

Страница 14: ...50 VRMS 0 25 VRMS 22 V 1 V 688 mVRMS 688 mVRMS 340 mVRMS 340 mVRMS 5 VRMS 0 025 VRMS 22 V 0 1 V 80 5mVRMS 80 5 mVRMS 40 mVRMS 40 mVRMS 1 MHz 220 VRMS 1 1 VRMS 220 V 1 V 30 8 VRMS 30 8 VRMS 15 4 VRMS 1...

Страница 15: ...hock Power off all high voltage signals before making any connections Figure 2 AC Gain Connection 1 Calibrator 7 NI BNC 2090A 2 Calibrator amp cable 8 BNC cable 3 Calibrator amp 9 BNC to banana plug a...

Страница 16: ...setting 4 Set the calibrator and the DMM to the appropriate frequency defined in Table 2 Repeat 4 times once for each set of voltage input values 5 Configure the DMM to measure the appropriate low vo...

Страница 17: ...with the DMM 10 Scale the DMM measurement with the coefficients stored on the DUT EEPROM a RM 26999 Initialize Voltage Channel vi b RM 26999 lib _getChannelsFromTask vi c RM 26999 lib _filterPhysical...

Страница 18: ...date and the temperature in the DUT EEPROM If the DUT passes the verification procedures within the As Left test limits an adjustment is not required Note NI recommends an adjustment to optimize the m...

Страница 19: ...dure 18 ni com calibration Figure 3 DC Gain Connection 1 Calibrator 6 BNC cable 2 Low thermal EMF cable with banana plugs 7 BNC to banana plug adaptor 3 NI RM 26999 8 DMM 4 NI SH68F 68F EPM cable 9 Po...

Страница 20: ...ibration Stimulus vi a Use the high voltage values from Table 3 as input for the VI Repeat 2 times once for each polarity Repeat 4 times once for each channel 4 Power off the calibrator output Caution...

Страница 21: ...ain Calibration vi a Use the high voltage value as the reference voltage signal as defined in Table 3 b Use the low voltage value as the measured voltage signal as defined in Table 3 Repeat 4 times on...

Страница 22: ...2 times once for each signal path Repeat 1 time once for each frequency Table 5 AC Voltage Test Point Frequency High Voltage Value Calibrator Range Low Voltage Value DMM Range 15 kHz 10 VRMS 22 VRMS...

Страница 23: ...vi with the commit action to store all scaling coefficients for both DC and AC on the DUT EEPROM Perform Reverification Perform all tests in the Verification section after completing Adjustment This v...

Страница 24: ...companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments...

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