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Calibration
Security
(continued)
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-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 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?
Chapter 3 Features and Functions
Calibration Overview
98