MeshGuard LEL IR & CO2 IR User’s Guide 
 
52 
 
 External Battery Replacement 
 
External battery replacement 
1.  Unplug the battery connector  
2.  Loosen the safety screw holding the battery 
3.  Mount a new battery on the mounting bracket 
4.  Tighten the safety screw 
5.  Connect the MeshGuard LEL IR to the battery. 
6.  Switch on the instrument. 
Note: Always recalibrate the instrument after service.  
 
 
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