Keysight Technologies E4417A Service Manual page 59

2 Performance Tests
10 Preset the instrument:
11 Zero the Keysight 432A test power meter:
12 Set the DVM to measure microvolts.
13 Connect the positive and negative input leads to the Vcomp and VRF
14 Observe the reading on the DVM:
15 Round off the DVM value to two decimal places. Record this value as V
16 Turn the power reference on:
17 Round off the DVM reading to two decimal places. Record this value as V1:
18 Turn the power reference off:
19 Disconnect the DVM negative input lead from the VRF connector on the
20 Observe the reading on the DVM. Record this value as Vcomp
64
Preset
– Press then
Local
– Set the Keysight 432A RANGE switch to Coarse Zero.
– Adjust the front panel Coarse Zero control to obtain a zero meter indication.
– Fine zero the Keysight 432A on the most sensitive range.
– Set the RANGE switch to 1 mW.
connectors respectively, on the rear panel of the Keysight 432A.
If less than 400 μV, go to step 15. If 400 μV or more, press and hold the
Keysight 432A Fine Zero switch and adjust the Coarse Zero control so that the
DVM indicates 200 μV or less. Release the Fine Zero switch and go to step 15.
– V ___________
o
Zero
Press ,
Power Ref On
Cal
– V ___________
1
Zero
Press ,
Power Ref Off
Cal
Keysight 432A. Reconnect it to the Keysight 432A chassis ground.
– V ___________
comp
Confirm on the power meter.
Keysight E4416A/E4417A Power Meters Service Guide
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