Vaisala HMP230 User Manual

Page 54

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HMP230 SERIES
User's Guide

M210225en-B

48

6.4.2. Output via the serial bus

6.4.2.1. Starting the measurement output

R <cr>

Starts output of measurements to the peripheral devices (RUN mode); the only
command that can be used is S (stop).

The output mode can be changed with command FORM (see Appendix 1).

6.4.2.2. Stopping the measurement output

S<cr>

Ends the RUN mode; after this command all other commands can be used.

6.4.2.3. Outputting the reading once

SEND <cr> in STOP mode

or

SEND aa <cr>

in POLL state

aa =

address of the transmitter when more than one transmitter
is connected to a serial bus (0...99)

The output format depends on which parameters the transmitter can output.

Output types:

RH= 21.9 %RH T= 23.9 'C
RH= 21.9 %RH T= 23.9 'C Td=0.9 'C
RH= 21.9 %RH T=23.9 'C a=4.7 g/m3 x=4.0 g/kg Tw= 12.3 'C
RH= 21.9 %RH T= 23.9 'C Td=0.9 'C a=4.8 g/m3 x=4.0 g/kg
Tw=12.3 'C h=34.4 kJ/kg
RH= 21.9 %RH T= 24.0 'C h= 34.4 kJ/kg

The output mode can be changed with command FORM (see Appendix 1).

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