Meriam M1 – Series Digital Manometer - Manual (Page 15)

M1 Series - DM Instruction Manual 9R000034-IR
E.O. 6409 JAN 2008
www.meriam.com
Page 15 of 17
Remove the two screws located at the top center and bottom center
of the battery cover by turning them counterclockwise until the
fully disengaged from the M1 base. Lift the cover from the back of
the unit. Do not remove the pink antistatic foam that is
attached to the inside of the battery cover. This foam is
necessary to properly secure the batteries under specified
shock and vibration conditions!
Remove the batteries by pulling the positive side first straight out
of the battery compartment. Note the positive (+) and negative (-)
battery polarity markings at the bottom of the compartment, as
shown here.
Install the three batteries by sliding them into the bottom of the
battery slots, making sure the polarity markings on the batteries
align with the markings shown in the battery compartment. The
battery compartment has stand offs molded into the side of the
compartment. When a battery is installed with the polarity
reversed, the stand offs prevent the negative battery terminal from
contacting the positive terminal in the battery compartment. The
unit will not power up when a battery is installed this way. Should
this happen, simply reverse the battery to correct the polarity.
With the batteries secured in the battery compartment, replace the
compartment cover. The cover has only one orientation for correct
alignment. The “WARNING
DO NOT OPEN IN EXPLOSIVE
ATMOSPHERE ” statement on the battery cover must be visible and
aligned in the approximate middle of the M1 case. To secure the
cover, torque the screws clockwise to 1.6 in-lbs. Do not over
tighten.