6 selecting the probe type, Selecting the probe type – Vaisala HMP42 User Manual
Page 44

HMI41 AND HMP42
Operating Manual
M210317EN-A
40
8.5
Setting the pressure for mixing ratio and wet bulb temperature
calculations
set
P
Pa
h
The pressure is changed (in steps of 0.25 hPa) with buttons ▲ (number up)
and ▼ (number down). Acknowledge the pressure setting with ENTER and a
text similar to the following appears:
set
or
set
Indicators marked with letters ID have the automatic probe recognition as
default (
AUT PROBE
) and previous versions the probe type 1. If the indicator
does not recognize the probe type automatically, set the type manually to 2
(see below) when using the HMP42.
8.6
Selecting the probe type
set
Change the setting with buttons ▲ (number up) and ▼ (number down). You
have now completed the setup procedure; turn your indicator off.
NOTE
The HMI41 setup contains further settings (start, baud,
seri and calib) that appear after probe type setting when
pressing ENTER. Start setting is changed only when
using the HMP44/44L probes (
START
5, see the HM44
Operating Manual). For calib, see Chapter 5. Other
settings are meant for the HMI41 used as a field
calibrator for other Vaisala humidity transmitters. It is
recommended that these settings are not changed.