12 Keysight E3631A Service Guide
1 Meter and adjust selection keys Select the output voltage and current of any
one supply (+6V, +25V, or -25V output) to be monitored on the display and
allow knob adjustment of that supply.
2 Tracking enable / disable key Enables / disables the track mode of ±25V
supplies.
3 Display limit key Shows the voltage and current limit values on the display
and allows knob adjustment for setting limit values.
4 Recall operating state key Recalls a previously stored operating state from
location "1", "2", or "3".
5 Store operating state / Local key
1
Stores an operating state in location "1",
"2", or "3" / or returns the power supply to local mode from remote interface
mode.
6Error / Calibrate key
2
Displays error codes generated during operations,
self-test and calibration / or enables calibration mode (the power supply must
be unsecured before performing calibration).
7 I/O Configuration / Secure key
3
Configures the power supply for remote
interfaces / or secure and unsecure the power supply for calibration.
8 Output On/Off key Enables or disables all three power supply outputs. This
key toggles between two states.
9 Control knob Increases or decreases the value of the blinking digit by turning
clockwise or counter clockwise.
10 Resolution selection keys Move the flashing digit to the right or left.
11 Voltage/current adjust selection key Selects the knob function to voltage
control or current control.
1
The key can be used as the "Local" key when the power supply is in the remote
interface mode.
2
You can enable the "calibration mode" by holding down this key when you turn
on the power supply.
3
You can use it as the "Secure" or "Unsecure" key when the power supply is in the
calibration mode.
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