Calibration Procedures 3
Keysight E3633A and E3634A Service Guide 75
Use the resolution selection keys to move left or right between digits. Use the
knob to change the digits. Notice that the security code may be different if the
security code has been changed from the default setting.
4 Unsecure the power supply.
The power supply is unsecured when you press (Secure) key. You will see
the above message from the front panel for one second. The “CAL MODE”
message is displayed on the front panel after above message.
5 Turn off the calibration mode.
Turn off the power supply to exit the calibration mode.
UNSECURED
To re-secure the power supply (following calibration), perform this procedure
again.