Agilent Technologies 34980A Service Manual download pdf (Page 60)

48 34980A Service Guide

3 Calibration Procedures

Calibration Message

The instrument allows you to store a message in calibration memory. 

You may store a calibration message for the mainframe, the DMM, the

34951A 4- Ch Isolated DAC Module, and 34952A Multifunction Module. 

For example, you can store such information as the date when the last

calibration was performed, the date when the next calibration is due, the

instrument’s serial number, or even the name and phone number of the

person to contact for a new calibration.

• You can record a calibration message only from the remote interface

and only when the instrument is unsecured. You can read the

calibration message whether the instrument is secured or unsecured.

• The calibration message may contain up to 40 characters.

• Remote Interface Commands:

CALibration:STRing <string>,{<slot>|MAINframe|DMM}

CALibration:STRing?

{<slot>|MAINframe|DMM}

Calibration Count

You can query the mainframe, the DMM, the 34951A 4- Ch Isolated DAC

Module, and 34952A Multifunction Module to determine how many

calibrations have been performed. Note that your instrument was

calibrated before it left the factory. When you receive your instrument, 

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

• The calibration count increments up to a maximum of 2

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.

• The calibration count is also incremented with calibrations of the

34951A 4- Ch DAC and DAC channels on the 34952A multifunction

module.

• Remote Interface Command:

CALibration:COUNt? {<slot>|MAINframe|DMM}

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 157 158

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Agilent Technologies 34980A Service Manual Page 60