Performance Tests and Calibration 4
34405A User’s and Service Guide 109
3 Record the new Calibration Count (see page 109).
4 Press and simultaneously to exit the
Adjustment Mode. The instrument will be secured and
returns to DC Voltage, autoranging measurements.
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
Shift
DCV
34405A users guide.book Page 109 Saturday, September 2, 2006 3:38 PM
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