Vaisala HMP230 - Manual (Page 93)

HMP230 SERIES
M210225en-B Appendix 1: Serial commands
87
NOTE
The temperature unit in offset correction is always de-
grees Centigrade, even if the transmitter is using non-
metric units (Fahrenheit) in its measurement output.
3. OUTPUT VIA THE SERIAL BUS
R Starting the measurement output
R
Starts output of measurements to the peripheral devices (PC display or
printer); output interval is set with command INTV.
The output format depends on the transmitter configuration and which vari-
ables are in use. The order, however, is always the same: relative humidity,
temperature, dewpoint temperature, absolute humidity, mixing ratio and wet
bulb temperature. An example:
RH= 43.0 %RH T= 21.0 'C Tdp= 8.0 'C x= 6.7 g/kg Tw= 13.7 'C
h=34.4 kJ/kg
When the transmitter sends out the readings, the serial interface does not echo
any commands; the only command that can be used is S (stop).
The output mode can be changed with command FORM.
S Stopping the measurement output
S
Ends the RUN state; after this command all other commands can be used.