Meriam M1 – Series Pressure Calibrator - Manual (Page 15)

M1 Series – PC Instruction Manual 9R000035-IR
E.O. 6409 JAN 2008
www.meriam.com
Page 15 of 18
Certification/Safety/Warnings
The following defines the certification of the M1 Series pressure instrument.
Note the following WARNINGS and requirements:
•
User must use bulkhead fitting hex surface when attaching user’s 1/8”
NPT fitting. When making mechanical connections, DO NOT apply
torque to bulkhead fitting that causes the fitting to turn or twist with
respect to plastic enclosure. To do so, will damage the product and void
the warranty.
Changing the Batteries
The M1 is powered by three, 1.5 volt AA size batteries. When the output of
the batteries drop below a normal level, the display will activate the “BAT”
icon, indicating a low battery condition. A low battery condition may affect
performance, and therefore, the unit should not be used to measure pressure.
All three batteries should be replaced.
To replace the battery locate the battery compartment in the bottom rear of the
M1. Remove the two screws located at the top center and bottom center of the
battery cover by turning them counterclockwise until they are 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!