Systems Normal

A steady green 'System Normal' LED indicates:

• the system is powered on,

• all components are operating normally,

• gas levels, if detected, are equal to or below 50 percent of the LEL.

It is good practice to verify the system LED is green before entering the vehicle. Though the panel is designed to be read when sitting inside the cab, the green light can clearly be seen through the back windows of the cab. It is also visible when standing next to the B-pillar and looking up through the side windows.