Technical data

1 Calibration Procedures
Calibration Security Code
24 E3632A Service Guide
Calibration Security Code
This feature allows you to enter a security code (electronic
key) to prevent accidental or unauthorized calibrations of
the power supply. When you first receive your power supply,
it is secured. Before you can calibrate the power supply, you
must unsecure it by entering the correct security code. A
procedure to unsecure the power supply is given on the
following page.
• The security code is set to HP003632 when the power
supply is shipped from the factory. The security code is
stored in non- volatile memory, and it does not change
when power has been off or after a remote interface
reset.
• To secure the power supply from the remote interface, the
security code may contain up to 12 alphanumeric
characters as shown below. The first character must be a
letter, but the remaining characters can be letters or
numbers. You do not have to use all 12 characters but the
first character must always be a letter.
A _ _ _ _ _ _ _ _ _ _ _ (12 characters)
• To secure the power supply from the remote interface so
that it can be unsecured from the front panel, use the
eight- character format shown below. The first two
characters must be “H P” and the remaining characters
must be numbers. Only the last six characters are
recognized from the front panel, but all eight characters
are required. To unsecure the power supply from the front
panel, omit the “H P” and enter the remaining numbers as
shown on the following pages.
H P _ _ _ _ _ _ (8 characters)
• If you forget your security code, you can disable the
security feature by adding a jumper inside the power
supply, and then entering a new code. Refer to
“To
unsecure the power supply without the security code” on
page 26.