HMI41 AND PROBES
M210316EN-A
Operating Manual
51
2.
CALIBRATION WITH THE HMI41 SOFTWARE
This quick reference is meant for those users who already know how to use the
HMI41 indicator. The operating manual gives more detailed instructions.
NOTE: it is recommended that the calibration is done with trimmer
potentiometers of the probe. However, if only one probe is being used, the
calibration can also be done according to the following instructions.
2.1
One-point humidity calibration
RH
set min max
hyst hold
Lo bat Hi
P
Pa
h
g/m
T
Td
°C °F
°C °F
%
Turn the HMI41 indicator on. Within 1-2 seconds
press simultaneously buttons MODE and HOLD
until the text SEtUP appears.
Wait a few seconds.
set
°C
Press ENTER eight times.
set
Press MODE twice.
RH
set
Press ENTER to activate one point humidity
calibration.
RH
set
%
The reference humidity reading stored in the HMI41
memory is blinking. Change it to the correct value
(see calibration table) with buttons
▲
or
▼
. The
reading changes in steps of 0,1 %. Press ENTER.
RH
%
The indicator shows the value that the probe is
measuring. Wait at least 10 minutes for the reading
to stabilize and acknowledge it by pressing ENTER.
Press ENTER again to conclude the calibration.
Calibration was successful. If it was not succesful,
some other text appears on the display (e.g.
too
close, err offst
or
err gain
). Perform the calibration
again.
Summary of Contents for HUMICAP HMP41
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