Meriam M202 Precision Absolute Manometer User Manual
Page 34

M2 Series
Instruction Manual 9R68-A
Mar, 2008
www.meriam.com
page 34 of 36
 
Changing the Batteries 
 
Adherence to the Specifications and Certification/Safety/Warnings 
sections of this manual shall be enforced when changing batteries. 
 
The manometer 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 power may affect performance. The unit should 
not be used to measure pressure in this condition. All four batteries 
should be replaced. 
 
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 the fully disengaged from the 
manometer base. Lift the cover from the back of the unit. 
 
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. 
