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Calibration Security Code
This feature allows you to enter a security code (electronic key) to prevent
accidental or unauthorized calibrations of the function generator.
When you first receive your function generator, it is secured. Before you
can adjust calibration constants you must unsecure the function generator
by entering the correct security code. A procedure to unsecure the
function generator is given on page 47.
The security code is set to “HP033120” when the function generator is
shipped from the factory. The security code is stored in non-volatile
memory, and does not change when power has been off or after a remote
interface reset.
To secure the function generator 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 function generator from the remote interface but allow it to
be unsecured from the front panel, use the eight-character format shown
below. The first two characters must be “HP” 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 function generator from the front panel, omit the “HP” and enter the
remaining numbers.)
H P _ _ _ _ _ _ (8 characters)
If you forget your security code, you can disable the security feature by
adding a jumper inside the function generator, and then entering a
new code. See the procedure on the following page.
Chapter 4 Calibration Procedures
Calibration Security Code
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