Chapter 3 Front-Panel Operation and Features
Calibration Overview
63
3
To Unsecure for Calibration
You can unsecure the power supply either from the front panel or over the
remote interface. The power supply is secured when shipped from the factory.
See the table 3-1 for the factory setting secure code for your power supply.
1 Select the calibration mode.
If the power supply is secured, the above message is displayed as you turn on
the power supply by holding down (
Calibrate) key and hold down the
key until you hear a long beep. And a message ‘‘
CAL MODE
’’ is displayed.
2 Enter the security code.
Enter the security code using the control knob and resolution selection keys.
3 Save the change and exit the menu.
You will see the above message if the security code is correct. And a message
‘‘
CAL MODE
’’ is displayed. To exit the calibration mode, turn the power off
and on.
Notice that if you enter the wrong secure code, “
INVALID
” is displayed and
the code entering mode is displayed for you to enter the correct code.
• Remote Interface Operation:
CAL:SEC:STAT {OFF|ON},<code> Secure or unsecure the power supply
To unsecure the power supply, send the above command with the same
code used to secure. For example,
‘‘
CAL:SEC:STAT OFF,
‘
003640
’’’
(E3640A model)
SECURED
000000
UNSECURED
Power
Calibrate
View
Calibrate
View
Secure
Config
I/O
Secure
Config
I/O
Power
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