Vaisala HMP260 User Manual
Page 69
HMP260 SERIES
Appendix 1: Serial commands
HMP260-U017en-1.5
ASEL RH T
Ch1
(RH)
lo 0.000 %RH
?
Ch1
(RH)
hi 100.000 %RH
?
Ch2
(T ) lo -40.000 'C ? 0
Ch2
(T ) hi +160.000 'C
? 100
When the ASEL command is given on its own, the transmitter outputs its current
settings:
ASEL
Ch1
(RH)
lo
0.000 %RH
Ch1
(RH)
hi
100.000 %RH
Ch2
(T ) lo
-40.000 'C
Ch2
(T ) hi
+160.000 'C
The outputs and their scales can also be given directly with the ASEL command.
ASEL xxx yyy aaa.a bbb.b ccc.c ddd.d
xxx
=
channel 1's quantity
yyy
=
channel 2's quantity
aaa.a
=
lower limit of channel 1
bbb.b
=
upper limit of channel 1
ccc.c
=
lower limit of channel 2
ddd.d
=
upper limit of channel 2
ASCL
Scaling the analogue outputs
Disconnect the security lock jumper!
ASCL
Scales the outputs selected on channels 1 and 2.
For example, scaling relative humidity on the range of 0...100 %RH and temperature -
40...+160 °C:
ASCL
Ch1
(RH)
lo
0.000 %RH
?
Ch1
(RH)
hi
100.000 %RH
?
Ch2
(T ) lo
0.000 'C
? -40
Ch2
(T ) hi
100.000 'C ? 160