Keysight E5071C ENA Service Manual page 34

General Information
Power Meter Accuracy Test
c. Press [Zero/Cal], then Zero A or Zero B (as appropriate). Wait for the
d. Set the range calibrator's FUNCTION switch to CALIBRATE.
e. Press [Zero/Cal], Cal, then Cal A or Cal B (as appropriate). Wait for the
Step 8. Monitor the drift rate of the power meter reading: Five minutes following
calibration, the meter must read 0.001, 0.000, or -0.001 dBm. If the power
meter reading is not one of these values, allow additional warm up time, then
check the drift rate again. The range calibrator must remain connected to the
power meter during this warm up time.
Step 9. Zero and calibrate the power meter channel to which the range calibrator is
connected:
After a channel on the power meter is calibrated, do not allow more than 5
minutes to elapse before completing the remaining measurement steps for
that channel.
a. The range calibrator's RANGE switch should be set to 1 mW.
b. Set the range calibrator's FUNCTION switch to STANDBY.
c. Press [Zero/Cal], then Zero A or Zero B (as appropriate). Wait for the
d. Set the range calibrator's FUNCTION switch to CALIBRATE.
e. Press [Zero/Cal], Cal, then Cal A or Cal B (as appropriate). Wait for the
Step 10. Record the DVM voltage reading as value A in the test record on
All DVM readings in this procedure should be recorded showing five
significant digits.
Step 11. The reading on the power meter should be 0.000 0.001 dBm.
Step 12. Switch the range calibrator RANGE to 300W.
Step 13. Record the DVM voltage reading as value B in the test record.
Step 14. Wait for the power meter reading to settle (no settling drift within 20
seconds).
Step 15. Record the power meter reading as value C in the test record.
Step 16. Switch the range calibrator RANGE to 100W.
Step 17. Record the DVM voltage reading as value D in the test record.
Step 18. Wait for the power meter reading to settle (no settling drift within 20
seconds).
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operation to complete.
operation to complete.
operation to be completed.
operation to complete.
Keysight E5071C ENA Network Analyzers
page 36.