Vaisala HMT120 - Manual (Page 39)

Chapter 4 _______________________________________________________________ Service Port
VAISALA ________________________________________________________________________ 37
Set/Show Serial Interface Mode
Use the SMODE command to show or set the serial interface mode. Note
that a separate SAVE command is not needed to store the new serial
interface mode setting.
SMODE [STOP/RUN]
In STOP mode: outputting only when command is issued, any command
can be used.
In RUN mode: outputting automatically, only command S can be used.
Example:
>smode stop
Output mode : STOP
>
Configuring Measurement Parameters
Set/Show Environmental Parameters
Use the ENV command to show or set the environmental compensation
values. In HMT120, the humidity measurement can be compensated for
ambient pressure. The value set using ENV command is a permanent
value which will survive a restart.
ENV [x.xxxx]
where
x.xxxx
= Absolute pressure in the measuring environment.
The default is 1.013. The pressure unit is bar.
Example:
>env
Pressure (bar) : 1.013
>
>env 0.980
Pressure (bar) : 0.98
>save
Saving settings...done
>
NOTE You can use the Vaisala Humidity Calculator to simulate the effect of
pressure change to dewpoint. The Humidity Calculator can be found at:
www.vaisala.com/humiditycalculator