Agilent Technologies 34401A manual Calibration Count, Unsecure with old code, Enter new code

Calibration Security (continued)

Chapter 3 Features and Functions

Calibration Overview

To Change the Security Code To change the security code, you must first unsecure the multimeter, and then enter a new code. Make sure you have read the security code rules on page 95 before attempting to secure the multimeter.

•Front-Panel Operation: To change the security code, first make sure that the multimeter is unsecured. Select the “parameter” level of the UNSECURED command, enter the new security code, then press Menu Enter. Changing the code from the front panel also changes the code as seen from the remote interface.

•Remote Interface Operation:

CALibration:SECure:CODE <new code>

To change the security code, first unsecure the multimeter using the old security code. Then, enter the new code. For example,

CAL:SEC:STAT	OFF, HP034401	unsecure with old code
CAL:SEC:CODE	ZZ010443	enter new code

Calibration Count

You can determine the number of times that your multimeter has been calibrated. Your multimeter was calibrated before it left the factory. When you receive your multimeter, read the count to determine its initial value.

•The calibration count is stored in non-volatilememory, and does not change when power has been off or after a remote interface reset.

•The calibration count increments up to a maximum of 32,767 after which it wraps-around to 0. Since the value increments by one for each calibration point, a complete calibration increases the value by several counts.

•Front-Panel Operation:

3:CAL COUNT (CAL MENU)

•Remote Interface Operation:

CALibration:COUNt?

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