Vaisala HMP240 User Manual
Page 38
HMP240
User's Guide
M210300en
36
5.4.1.2
Selecting and scaling the analogue output quantities
Disconnect the security lock jumper!
ASEL xxx yyy <cr>
xxx
=
channel 1's quantity
yyy
=
channel 2's quantity (RH, T, Td, dT, Abs, Mix or Tw)
Example: RH selected on channel 1 and temperature on channel 2
>ASEL RH T <cr>
Ch1
(RH)
lo
0.000 %RH ? <cr>
Ch1
(RH)
hi
100.000 %RH
? <cr>
Ch2
(T )
lo
-40.000 'C
? <cr>
Ch2
(T )
hi
+160.000 'C
? <cr>
5.4.1.3
Scaling the analogue outputs
Disconnect the security lock jumper!
ASCL <cr>
Example: relative humidity is scaled in the range 0...100 %RH and tem-
perature in the range -40...+160 °C
>ASCL <cr>
Ch1
(RH)
lo
0.000 %RH ? <cr>
Ch1
(RH)
hi
100.000 %RH
? <cr>
Ch2
(T )
lo
0.000 'C ? -40 <cr>
Ch2
(T )
hi
100.000 'C
? 160 <cr>
5.4.2 Output via the serial bus
5.4.2.1
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).
5.4.2.2
Stopping the measurement output
S<cr>
Ends the RUN mode; after this command all other commands are available.