Chapter 3 Operation
3-56
Bias Voltage
The Bias Voltage screen, shown below, displays the current bias voltage and the factory-
set min and max alarm limits. The min and max alarm limits can be changed when the
instrument is in the service mode. Acceptable limits range from -130 to -100 volts. If the
bias voltage reading goes beyond either the min or max alarm limit, an alarm is activated.
The word “Alarm” appears in the Run screen and in the Main Menu.
To display the Bias Voltage screen:
From the Main Menu choose Alarm
From the Alarm menu choose Bias Voltage
To use the Bias Voltage screen:
Use the
↑
and
↓
pushbuttons to move up and down (service mode on)
Press
ENTER
to select a choice (service mode on)
Press
MENU
to return to the Alarm menu
Press
RUN
to return to the Run screen
Bias Voltage Screen
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