3 Calibration Procedures
80 Keysight E3631A Service Guide
To calibrate the output voltages and currents of the power supply from the front
panel, proceed as follows:
1 Unsecure the power supply.
To calibrate the output voltage and current, you must unsecure the power
supply according to the procedure given on “To unsecure the power supply for
calibration” on page 76 page.
2 Disconnect all loads from the power supply and connect a DVM across output
terminals of the +6V output.
3 Turn on the calibration mode.
Turn on the calibration mode by pressing the "Calibrate" key while
simultaneously turning on the power supply then continue to hold the
"Calibrate" key for about 5 seconds until a beep is heard.
Make sure that the power supply is in "CV" mode. If the power supply is not in
"CV" mode, an error occurs.
4 Move down a level to the voltage calibration mode for the +6V supply.
The display shows the above message to indicate that the power supply is
ready for the voltage calibration of +6V supply.
5 Select the first voltage calibration point for the +6V supply
The display shows the first voltage calibration point for the +6V supply.
6 Read the DVM and change the first voltage value on the display to match the
measured voltage.
For example, if the DVM reading is 0.0860 V, adjust the voltage to 0.0860 V
using the knob and resolution selection keys.
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