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125

Chapter 3 Features and Functions

Calibration Overview

To Change the Security Code To change the security code, you must

first unsecure the function generator, and then enter a new code.

Make sure you

have read the security code rules described on page 123

before attempting

to change the security code.

• Front-Panel Operation: To change the security code, unsecure

the

function generator using the old security code. Then press and

select

the Secure Code softkey from the “Test / Cal” menu.

Changing the code from the front panel also changes the security

code as seen from the remote interface.

• Remote Interface Operation: To change the security code, you must

first unsecure the function generator using the old security code.

Then enter the new code as shown below.

CAL:SECURE:STATE OFF, AT33250A

Unsecure with old code

CAL:SECURE:CODE SN123456789 Enter new code

Calibration Count

You can query the function generator to determine how many calibrations

have been performed. Note that your function generator was calibrated

before it left the factory. When you receive your function generator,

be sure to read the count to determine its initial value.

• The calibration count is stored in non-volatile memory and does not

change when power has been off or after a remote interface reset.

• The calibration count increments up to a maximum of 65,535 after

which it rolls over to “0”. Since the value increments by one for each

calibration point, a complete calibration may increase the value by

many counts.

• Front-Panel Operation: Press and then select the Cal Info

softkey from the “Test / Cal” menu. The calibration count is listed as

one of the messages on the display.

• Remote Interface Operation:

CALibration:COUNt?

Agilent Technologies 33250A User Manual

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