Operation and Service Guide 1
Keysight E4412A and E4413A Operating and Service Guide 31
Zero set performance verification
This performance verification is carried out to verify that a minimal amount of
residual offset error is present after zeroing has been performed. The offset error is
caused by contamination from several sources including the noise of the DUT
itself. Zero set is the difference between the power levels indicated by the DUT,
after executing zeroing and the true zero power. Ideally, this difference should be
zero.
This performance verification requires the E4416/7A power meter.
Procedure
1 Connect the DUT (E-Series E4412A or E4413A power sensor) to the power
meter as shown in Figure 1-6.
Figure 1-6 Zero set performance verification equipment setup
2 Warm up the DUT for approximately 30 minutes.
3 Connect the DUT to the power meter power reference terminal to perform zero
and calibration.
4 Detach the DUT from the power meter reference oscilloscope.
5 Launch the Interactive IO on the Keysight IO Libraries Suite.
6 Set the frequency of the DUT to 50 MHz by sending "FREQ 50MHz".
7 Enable auto-averaging for the DUT by sending "AVER:COUN:AUTO ON".
8 Change the power measurement unit of the DUT to watt by sending
"UNIT:POW W".
9 Set the DUT to the single trigger mode by sending "INIT:CONT OFF".
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