Table of Contents
Advertisement
HFP1500 High Frequency Probe
10. Record the calculated error to two decimal places (±0.xx%) as 'Gain Error, top range' in
the test record.
11. Verify that the error is less than ±1.0 %.
12. Disconnect the precision 50 Ω terminator from the DMM.
13. Connect the banana plug adapter connected via a BNC cable to the BNC tee at the func-
tion generator to the DMM. Verify that the side of the plug marked 'Ground' is connected to
the LOW or COMMON input of the DMM.
14. Adjust the sine wave generator output amplitude to approximately 2.5 Vrms as measured
on the DMM.
15. Record the reading to 1 mV resolution as 'Generator Output Voltage, mid range' in the
Test Record. Be careful not to alter the output amplitude after the reading is recorded.
16. Divide the reading recorded in step C-15 by 10.
17. Record the result to 100 µV resolution as 'Expected Output Voltage, mid range' in the test
record.
18. Remove the banana plug adapter from the DMM and connect the precision 50 Ω termina-
tor to the DMM, making sure that the banana plug side marked 'GROUND" is connected to
the LOW or COMMON input of the DMM.
19. After the DMM has stabilized, record the reading to 100 µV resolution as 'Measured Out-
put Voltage, mid range' in the Test record.
20. Calculate the error by dividing the measured output voltage recorded in step C-19 by the
expected top output voltage recorded in step C-17. Subtract 1 from this ratio and multiply
by 100% to get the error in percent.
Error
21. Record the calculated error to two decimal places (±0.xx %) as 'Gain Error, mid range' in
the Test record.
22. Verify that the mid range gain error is less than ±1.0%
This completes the Performance Verification of the HFP1500. Complete and file the Test Record,
as required to support your internal calibration procedure.
Apply suitable calibration label to the HFP1500 housing as required.
7–8
Measured Output Voltage
⎛
------------------------------------------------------------- - 1
=
⎝
Expected Output Voltage
###
⎞
×
–
100%
⎠
HFP1500-OM-E Rev E
Advertisement
Table of Contents
