Vaisala HUMICAP DMT132, User Manual

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ALARM [on/off] [limit]<cr>
on/off Enable (on) or disable (off) the LED indicator function.
limit Dew point temperature above which the LED indicator is lit. Range -20 ... 50 °C.
Example (show the current status of the LED indication):
> alarm
Alarm Led : OFF
Alarm level : 20.000000
>
Example (enable the LED indicator at dew point above 20 °C):
> alarm on 20
Alarm level : 20.000000
Saving settings...done
>
4.9 Calibration and Adjustment
Commands
Commands that have to do with calibration and adjustment on the serial line are described
below. For the calibration and adjustment procedures, see
Calibration and Adjustment
(page 47) .
4.9.1 Calibrate Humidity Measurement
Use the
RHCAL
command to perform a one-point or two-point humidity (RH) calibration.
RHCAL <cr>
When performing a one-point calibration, you need to place the transmitter in a single
humidity reference with RH < 50%. Run the command and enter the exact RH of the
reference after the measurement has stabilized. Exit the command by pressing the ESC key
before proceeding to the second point (see the first example below). To update the value,
press ENTER without inputting a value.
For two-point calibration, the first point requires a RH < 35% humidity reference, the second
point must be RH > 50%.
Example (one-point calibration):
Chapter 4 – Operation
39