Chapter 3 Front-Panel Operation
Calibration Overview
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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 “HP003631”.
• Front-Panel Operation
If the power supply is secured, you will see the above message for one second by
holding the key for 5 seconds when you turn on the power supply. To
unsecure the power supply, press the 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 key.
When you press the 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 returns to the code entering
mode for you to enter the correct code.
• Remote Interface Operation:
CALibrate:SECure:STATe, {OFF|ON},
<code>
To unsecure the power supply, send the above command with the same code used to
secure. For example,
"CAL:SEC:STAT OFF, HP003631"
SECURED
000000 CODE
UNSECURED
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