Chapter 3 Front-Panel Operation
Calibration Overview
58
To Secure Against Calibration
You can secure the power suppl y against
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”* or “HP003634”**.
Be su re to read t he secu rity c ode ru les on pag e 56 before attempting to secure
the power su ppl y.
• Front-Panel Operation:
If the power supply is unsecured, you will see the above message for one
second by holding
(
Calibrate
) key for 5 seconds when you turn on the
power supply . To secure the power supply, press (
Secure
) key after the
“CAL MODE” message is displayed in the calibra tion mode, enter the security
code using the
control knob
and
resolution selection keys
, and then press
(
Secure
) key.
Notice that you shou ld omit the “HP ” and en ter the rem ai nin g num ber s as
shown bel ow.
W hen you press (
Secure
) key to save the change, you will see the
message below. The secured setting is stored in
non-volatile
memory , and does
not change when power has been off or after a remot e interface reset. To exit
the calibration mode, turn the power off and on.
• Remote Interface Operation:
CAL:SEC:STAT {OFF|ON},<code> Secure or unsecure the power supply
To secure the power supply, se nd the above command wit h the same code as
used to unsecure. For example,
‘‘
CAL:SEC:STAT ON, HP003633
’’
(E3633A) or
‘‘
CAL:SEC:STAT ON, HP003634
’’
(E3634A)
UNSECURED
000000 CODE
SECURED
Calibrate
Error
I/O
Config
Secure
I/O
Config
Secure
I/O
Config
Secure
*For HP E3633A Model **For HP E3634A Model
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