3 Front-Panel Operation
92 Keysight E3633A and E3634A User’s Guide
To unsecure for calibration
You can unsecure the power supply for calibration either from the front panel or
over the remote interface.
The power supply is secured when shipped from the factory, and the security
code is set to “HP003633”
[1]
or “HP003634”
[2]
– Front-panel operation:
If the power supply is secured, you will see the above message for one second
by holding (Calibrate) key for 5 seconds when you turn on the power
supply. To unsecure the power supply, press (Secure) key after the “CAL
MODE” message is displayed in the calibration mode, enter the security code
using the knob and resolution selection keys, and then press the (Secure)
key.
When you press (Secure) key to save the change, you will see the
message below for one second if the security code is correct. The unsecured
setting is stored in non-volatile memory, and does not change when power has
been off or after a remote interface reset. To exit the calibration mode, turn the
power off and on.
Notice that if the security is incorrect, the power supply displays an “INVALID”
message for a second and returns to the code entering mode for you to enter
the correct code.
[1] For Keysight E3633A Model
[2] For Keysight E3634A Model
SECURED
000000 CODE
UNSECURED
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