Serial interface _____________________________________________________________________
Vaisala _________________________________________________________________________ 40
Scaling the analog outputs
Turn the internal dip switch
CALIBRATION ENABLED/DISABLED
to
ON-position before the scaling the analog outputs and return it to
OFF- position after scaling.
Szz aa.a bb.b
↵
where:
zz
= quantity (RH, T, Td, x, a, Tw, ppm, aw, RS, Ts)
aa.a
= lower limit of the quantity
bb.b
= upper limit of the quantity
Example: Scaling the relative humidity:
>SRH 0 100
↵
RH
lo
0.00
%RH
RH
hi
100.00
%RH
>
Exception:
When you have natural gas transmitter and you scale the
quantity of water content w (mg/kg or lb/mscf) give a command
SNG1.
Adjustment commands
Turn the internal dip switch
CALIBRATION ENABLED/DISABLED
to
ON-position before the calibration and return it to OFF- position after
calibration.
Note that
HMT360 for natural gas
can be checked but not adjusted
by a user.
Relative humidity adjustment
NOTE
Read also the calibrator e.g. HMK15 manual and refer to page 47 of
this manual for more detailed instructions on salt bath calibration.
CRH
↵
