MeshGuard LEL IR & CO2 IR User’s Guide 
 
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Enter Detection Mode by turning the instrument on. Enter Programming Mode from Detection Mode 
by holding down [MODE] and [N/-] together. To enter Diagnostic Mode, start with the MeshGuard 
LEL IR turned off and hold both [Y/+] and [MODE] to start it. Once Diagnostic Mode is on, enter 
Diagnostic Programming Mode by holding [N/-] and [MODE] together. 
 
5.7.  Detection Mode 
Whenever you start MeshGuard LEL IR or MeshGuard CO2 IR by pressing and holding [MODE], it 
is automatically in Detection Mode. 
The instrument displays the current reading: 
 
 
or