Technical data

Getting started
43
EN
4 Getting started
The meter is powered by either 4 AA batteries or a DC adaptor 9 V.
4.1 Installing the bat-
teries
 Install 4 AA batteries into the battery com-
partment on the rear and make sure that they
are in correct polarity and good contact.
Fig. 3: Display with low battery indicator
When battery voltage gets low, a low battery indi-
cator will appear on the LCD.
ATTENTION!
The CO
2
sensor cannot work normally under low
voltage.
Replace with fresh batteries or connect with the
DC adaptor.
4.2 Working with the
DC adaptor
 Connect the meter to the power outlet via the
DC adaptor 9 V (not included in the delivery,
see accessories) see fig. 1, part 2.
When the adaptor is used, the power supply from
the batteries is cut off automatically.
ATTENTION!
The adaptor cannot be used as a battery charger.
WARNING!
Risk of electrical shock!
Never touch the power supply with wet hands!
Protect the power supply against water and mois-
ture!
Do not unplug the recharger by pulling the cable!
Do not use the power supply when the voltage
requirements of the recharger and the supply do
not match!