Vaisala HMM100 - Manual (Page 44)

User's Guide _______________________________________________________________________
42 ___________________________________________________________________ M211024EN-C
The polling mode can be used when more than one module is connected
to one serial bus. When set to POLL state, the modules communicate one
at a time when the specific module address is called on the serial line.
See descriptions of the commands ADDR on page 41 and OPEN on
page 48.
Examples:
>smode stop
Output mode : STOP
>
>smode run
Output mode : RUN
>
>smode poll
Output mode : POLL
>
Configuring Measurement Parameters
Set Environmental Compensation Values
Use the ENV command to show or set the environmental compensation
values. In HMM100, the humidity measurement can be compensated for
ambient pressure. The value set using ENV command is a permanent
value which will survive a restart. Use the command XPRES instead if
the value is changed frequently; see section Set Temporary Pressure
Compensation Value on page 43.
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
>