Agilent Technologies 34405A, Руководство пользователя и сервисное руководство, Страница: 102 / 143

102 34405A User’s and Service Guide
4 Performance Tests and Calibration
Calibration Message
The instrument allows you to store a message in calibration memory. 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. The calibration message may
contain up to 40 characters.
You can record a calibration message only when the instrument is
unsecured. You can read the calibration message (from remote only)
whether the instrument is secured or unsecured.
To store a calibration message use the CALibration:STRing and
CALibration:STRing? commands from the remote interface.
To Read the Calibration Count
You can query the instrument to determine how many calibrations have
been performed. Note that your instrument was calibrated before it left
the factory. When you receive your instrument, read the count to
determine its initial value.
The count value increments by one for each calibration point, and a
complete calibration will increase the value by many counts. The
calibration count increments up to a maximum of 32767 after which it
rolls over to 0. The calibration count can be read either remotely or from
the front panel after the instrument has been unsecured. To read the
calibration count from remote, use the CALibration:COUNt? command. Use
the following procedure to read the calibration count from the front panel.
1
In Adjustment Mode (
CAL
annunciator illuminated)
press . The secondary display shows the calibration count.
2 Make note of the count.
3
Press again to exit the calibration count mode.
MnMx
MnMx
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