Vaisala HUMICAP MMT162 Guia do Utilizador descarregar pdf (Página 37)

Chapter 4 _________________________________________________________________ Operation

VAISALA ________________________________________________________________________ 35

Example:

amode 1 2

Ch1 output : 0 ... 20 mA

Ch2 output : 4 ... 20 mA

Calibrate Analog Output

Use the ACAL command to adjust analog output channels.

ACAL [channel]<cr>

where

channel

Analog output channel to be adjusted, 1 or 2.

After entering the ACAL command, use a calibrated current/voltage

meter to measure the output, and enter the values.

Example:

acal 1

Ch1 U1 ( V ) ? 1.001

Ch1 U2 ( V ) ? 9.011

acal 2

Ch2 U1 ( V ) ? 0.0988

Ch2 U2 ( V ) ? 0.8997

Set Malfunction Alarm Output for Analog

Channels

Use the AERR command to set the analog output levels that are output in

case of a device malfunction. The default output level is 0.

AERR<cr>

Example:

aerr

Ch1 error out : 10.000V ? 0

Ch2 error out : 1.000V ? 0

NOTE

The error output value must be within a valid range of the output mode.

NOTE

The error output value is displayed

only when there are minor electrical

faults such as a humidity sensor damage. When there is a severe device

malfunction, the error output value is not necessarily shown.

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Vaisala HUMICAP MMT162 Guia do Utilizador Página 37