Meriam M203 Altimeter Indicated Air Speed Tester - Manual (Page 29)

Battery Operation: > 100 hours continuous use, 1 year shelf
life, auto power off programmable at disabled, 10, 20, 30, 60
or 90 minutes
Enclosure: (6.9” x 3.8” x 2.3”) Polycarbonate, Permanently
Static Dissipative, ESD Protection
Enclosure with Boot: (7.2” x 4.2” x 2.5”)
Rating: IP40
Battery Type: 4 each AA alkaline
Changing the Batteries
Fire/Explosion Hazard. This instrument is not
intrinsically safe. DO NOT service in areas that
may contain flammable gas or vapors, combustible dusts or
ignitable fibers where an unintended spark can cause a
fire/explosion.
Electrical Arc Hazard. Failure to operate the
The product is powered by four, 1.5 volt AA size batteries. When
the output of the batteries under load drops, the display will
alternate between “LOW POWER DETECT” and “REPLACE
BATTERY”. Low battery power may affect performance. The
product should not be used to measure pressure in this condition.
All four batteries should be replaced.
product with the battery cover in place and
properly secured could result in minor or moderate injury.
To replace the battery locate the battery compartment at the
bottom rear of the manometer, as shown here.
Remove the two screws on either side of the battery cover by
turning them counterclockwise until they are fully disengaged from
the manometer base. Lift the battery cover from the back of the
product case.
Remove the batteries by pulling the positive side first straight out
of the battery compartment. Note the positive (+) and negative (-)
26