HP 8163A User Manual page 71

Figure 3-4
Power Measurement
How to Measure Power
Module Channels that are Settling
3 Move to the <Z
measurement channel or the <Z
power measurement channels. You will see the screen shown in
Figure 3-5, this appears for around 30 seconds while zeroing is
performed.
71
> option to zero the current power
ERO
A
ERO
> option to zero all
LL