Vaisala HUMICAP DMT132 Betriebsanweisung PDF herunterladen (Seite 44)

USER'S GUIDE____________________________________________________________________

42 __________________________________________________________________ M211289EN-A

Test Analog Output

The operation of the analog output can be tested with the ATEST

command by forcing the output to a given value which can then be

measured with a calibrated multimeter. After testing the output, give the

ATEST command again to exit the test mode.

ATEST [mA]<cr>

where

mA = Analog output value, range 0 ... 30 mA.

The output shows the test value of the analog output as well as diagnostic

information that may be useful to Vaisala Service if there is a problem

with the analog outputs.

Example (enabling analog output test mode with 20 mA output):

>atest 20

20.000000, 536b

Example (disabling analog output test mode, resuming normal output):

>atest

Set LED Indicator Level

Use the ALARM command to change the dewpoint temperature above

which the LED indicator plug is lit. The currently measured quantity is

used. You can also disable the LED indicator.

ALARM [on/off] [limit]<cr>

where

on/off = Enable (on) or disable (off) the LED indicator

function.

limit = Dewpoint 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

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Vaisala HUMICAP DMT132 Betriebsanweisung Seite 44