Vaisala HUMICAP DMT132, User Manual

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8. Give the CT command.
The output from the command shows the currently measured T value, and prompts you
to enter the value of the first reference (Ref1). This is the reference on the colder end,
which produces the offset correction for the measurement.
> ct
T 21.0947 Ref1 ?
9. Wait for 20 ... 40 minutes for the reading to stabilize. Press ENTER without typing
anything to update the value shown by the CT command.
T 22.1298 Ref1 ?
T 22.1317 Ref1 ?
T 22.1576 Ref1 ?
10. When the measurement shown by CT is stable, you can either apply the correction or
exit the procedure:
• To apply the correction, press ENTER one last time to update the value, type the
temperature of the reference in degrees Celcius, and press ENTER.
• To exit the CT command without adjusting the measurement, press the ESC key and
exit this procedure.
11. If you only want to perform a one-point calibration (offset correction), press the ESC
key after entering the correction.
The
CT command will exit, and you can move to step 14 .
> ct
T 22.1601 Ref1 ? 22
Press any key when ready
To continue with the calibration of the warmer end (gain correction), press ENTER.
12. Insert the transmitter in the second temperature reference and wait for 20 ... 40
minutes for the reading to stabilize.
The measurement reading for the second point will appear when the measured
temperature is at least 20 °C warmer than the first reference point.
DMT132 User Guide M211289EN-B
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