Vaisala HUMICAP HMP41, Руководство пользователя

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HMI41 AND PROBES
M210316EN-A Operating Manual
17
The correction data has now been calculated and stored in the HMI41 memory.
The HMI41 returns automatically to the selection of the display units, and can
be turned off. When the indicator is used as a standard indicator and the
correction data differs from the factory settings, an arrow in the upper
righthand corner is displayed:
RH
T
°C
%
If the message “cal pass” does not appear (instead, some other text may
appear, e.g. “too close ”, “ err offst ” or “ err gain ”), the correction has not been
stored in the memory. The error may be due to an incorrect reference value or
to measured values that are out of the range.
5.2.4 Two point temperature calibration
In two point temperature calibration, two accurate temperature references are
needed. Note that you must allow enough time for all instruments to stabilize
to the temperature equilibrium.
Start the calibration by inserting the probe to the lower reference temperature.
In setup mode, press ENTER repeatedly until the following is displayed:
set
Then press MODE five times, and the following appears:
set
T
Press ENTER to activate the two point temperature calibration mode. A
message similar to the following appears with the first line blinking: