8163A/B, 8164A/B, 8166A/B User’s Guide 107
Power Measurement 3
To remove electrical offsets:
1 Make sure the optical input is not receiving any light. If the instrument
has just been switched on, wait until SETTLING is not displayed for the
module channel.
Figure 59 Module Channels that are Setting
2 Move to the Power Meter channel and press the [Menu] softkey.
3 Move to the <Zero> option to zero the current power measurement
channel or the <Zero All> option to zero all power measurement
channels. You will see the screen shown in Figure 60 on page -108, this
appears for around 30 seconds while zeroing is performed.
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