Chapter 3 Calibration Procedures
Calibration Security Code
66
To Unsecure the Power Supply for Calibration
The power supply can use a calibration security code to prevent unauthorized or
accidental calibration. This procedure shows you how to unsecure the power supply
for calibration from the front panel.
1 Turn on the front-panel 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.
If the power supply is secured, you will see the above message from the front panel
for approximately one second. The "CAL MODE'' message is then displayed on the
front panel.
2 Move to the security code by pressing the "Secure" key.
3 Enter the security code using the knob and resolution selection keys.
The security code is set to "HP003631" when the power supply is shipped from the
factory. The security code is stored in non-volatile memory and does not change when
the power has been off or after a remote interface reset.
To enter the security code from the front panel, enter only the last six digits. To enter
the security code from the remote interface, you may enter up to 12 characters.
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.
SECURED
000000 CODE
003631 CODE
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