Vaisala HUMICAP HMI41, Руководство по эксплуатации, Страница: 12 / 74

HMI41 AND HMP42
Operating Manual
M210317EN-A
8
4. HOW TO USE THE HMI41 INDICATOR AND HMP42 PROBE
4.1 Turning the indicator on
To start the measurements with the HMI41, just press the ON/OFF button and
the following text appears:
RH
set min max hyst hold Lo bat Hi
P Pa h g/m
T
Td
°C °F
°C °F
%
After a few seconds, the software version and probe type indication appear:
If the software version does not appear, it is smaller than 1.02 and the HMI41
cannot be used with the HMP42. Contact Vaisala or a Vaisala representative
for further information.
Make sure that you can see the text 42.46 on the display. If not, the indicator
is of a previous version and does not recognize the probe type automatically.
Give the probe type setting manually (see Chapter 8).
After a couple of seconds, the battery voltage appears on the display with an
indication of the battery charge (high or low):
bat Hi
If the battery voltage is higher than 4.75 V, the text on the lower righthand
corner is “bat HI” and after a few seconds, the HMI41 automatically displays
the RH and T readings. If the voltage is 4.65...4.75 V, the text is “Lo bat” and
the batteries should be replaced (see Chapter 3.1). If the voltage is lower than
4.65 V, the indicator turns itself off to prevent erroneous measurements and
readings. Should this happen, replace the batteries.