General Power Meter Functions 2
Keysight N1911A/1912A User’s Guide 143
Zero/Cal Lockout
The Zero/Cal Lockout facility can help you make sure that a measurement cannot
be made until the power meter and sensor combination has been zeroed and
calibrated.
When the Zero/Cal Lockout facility is enabled and a sensor is initially connected,
the message Please Zero and Cal is displayed.
Figure 2-74 Please zero and calibrate window
When you zero the sensor the message changes to
Please Cal. If you calibrate the
sensor before zeroing it, the message changes to
Please Zero.
Dual channel meters display channel specific messages when a sensor is
connected. The Zero/Cal Lockout configuration is applied to both channels - it
cannot be applied to one channel only.
You can enable and disable the Zero/Cal Lockout facility from the System menu or
the Cal menu as follow:
Press , , or .
Similarly,
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