Meriam M4 Series Precision Calibrator Data Logger Manual - Manual (Page 27)

ZM4 Instruction Manual 9R87-B June 2012
27
Changing Batteries
Loosen the two screws in the battery cover and lift off cover. Remove the
batteries by gently applying pressure to the positive side and pull upward. To
install batteries (Four (4) AA 1.5 volt alkaline batteries) insert the negative
side against the spring and gently apply pressure to lock in the positive side.
The positive (+) and negative (-) battery polarity markings are located in the
bottom of the case for the lower batteries and on the top of case for the
upper batteries, as shown in the illustration. Once the batteries are secured
in the battery compartment, replace battery cover and tighten the two flat
head screws. The battery door is universal and can be installed in either
direction.
Figure 22: Changing Batteries
Warning – To avoid erratic readings replace batteries when
warning message appears.