2 Calibration Procedures
44 Keysight DAQ970A/DAQ973A Service Guide
Calibration Message
The instrument allows you to store one 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.
– You can record a calibration message from either the front-panel or over the
remote interface only when the instrument is unsecured.
– You can read the calibration message from either the front-panel or over the
remote interface whether the instrument is secured or unsecured.
– The calibration message may contain up to 40 characters.
– To read the calibration message, press [Utility] > Calibrate or send
CALibration:STRing? from the remote interface.
– To change the calibration message, unsecure the instrument and press
[Utility] > Calibrate > Edit Cal String or send CALibration:STRing
"<string>"
from the remote interface.
Calibration Count
You can query the instrument to determine how many calibrations have been
performed. Because the value increments each time you store the calibration
constants, a complete calibration adds many counts. The calibration count also
increments whenever you save a calibration string, change the calibration
password, or override the calibration security.
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.
To read the calibration count, press [Utility] > Calibrate on the front panel or send
CALibration:COUNt? from the remote interface. You can read the calibration
count whether the instrument is secured or unsecured.
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