Vaisala MMT162 - Manual (Page 35)

Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 33
Set Serial Interface Mode
Use the SMODE command to set the default serial interface mode.
SMODE [xxxx]
where
xxxx = STOP, RUN or POLL
In STOP mode: measurements output only by command SEND, all
commands can be used
In RUN mode: outputting automatically, only command S can be
used to stop.
In POLL mode: measurements output only with command SEND
[addr].
When several transmitters are connected to the same line, each
transmitter must be entered an own address in the initial configuration,
and POLL mode must be used.
Configuring Measurement Parameters
Select Analog Output Parameter and
Scaling
Select and scale the parameters for the analog outputs with the ASEL
command. Note that the optional parameters can be selected only if they
have been selected when ordering the device.
ASEL [xxx yyy]
where
xxx = Parameter of channel 1
yyy = Parameter of channel 2
Always enter all the parameters for all outputs. The MMT162 measures
the following parameters:
- water activity (aw)
- temperature (T) (metric unit: ºC, non metric unit: ºF)
- ppm for transformer oil only (H
2
O)
Example:
asel
Ch0 aw lo : 0.00 ?
Ch0 aw hi : 1.00 ?
Ch1 T lo : -20.00 'C ?
Ch1 T hi : 80.00 'C ?