Calibration Count - Agilent Technologies 34420A User Manual

Chapter 3 Features and Functions
Calibration
To Change the Security Code To change the security code, you must
first unsecure the meter, and then enter a new code. Make sure you have
read the security code rules on page 107 before attempting to secure the
meter.
Front-Panel operation: To change the security code, first make
sure that the meter 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 meter using the old
security code. Then, enter the new code. For example,
CAL:SEC:STAT OFF, HP034420
CAL:SEC:CODE HP010495

Calibration Count

You can determine the number of times that your meter has been
calibrated. Since the value increments by one for each calibration point, a
complete calibration increases the value by several counts.
The calibration count is stored in non-volatile memory, and does not
change when power has been off or after a remote interface reset. Your
meter was calibrated before it left the factory. When you receive your
meter, read the count to determine its initial value.
The calibration count increments up to a maximum of 32,767 after
which it wraps-around to 0.
Front-Panel operation: read the calibration count under the
3: CAL COUNT command in the CALibrate menu.
Remote operation: use the following command:
CALibration:COUNt?
110
unsecure with old code
enter new code