Serial interface _____________________________________________________________________
Vaisala _________________________________________________________________________ 39
To start giving commands, make sure that the HMT360 is connected
to a serial port of your computer and that the terminal session is open.
Give commands by typing them on your computer according to the
following instructions. In these commands,
↵
stands for pressing
ENTER
.
NOTE
Each time the HMT360 transmitter sends something to the terminal,
it also sends line feed and carriage return.
Selecting the analog outputs
Turn the internal dip switch
CALIBRATION ENABLED/DISABLED
to
ON-position before the selecting the analog outputs and return it to
OFF- position after selecting .
ASEL xxx yyy
↵
where:
xxx
= quantity of channel 1 and
yyy
= quantity of channel 2
output quantity
abbreviation
relative humidity
RH
temperature
T
dewpoint temperature
Td
absolute humidity
a
mixing ratio
x
wet bulb temperature
1
Tw
mass proportion
1
ppm
water activity
1
aw
relative humidity of saturation
1
RS
saturation temperature
1
Ts
water content
2
w
1
Available only for HMT368H for moisture measurements in liquid.
2
Available only for HMT360N for natural gas
Example:
>asel rh t
↵
Ch1 RH lo : 0.00 %RH
Ch1 RH hi : 100.00 %RH
Ch2 T lo : -40.00 'C
Ch2 T hi : 60.00 'C
>
