X002102

All visual indicators in the air cleaner assembly show whether the preset differential pressure has been exceeded at any time – even after the system has been shut down. When the factory set differential pressure is exceeded, the red button pops up and remains until the manual reset.

When the differential pressure decreases, the shift spring returns the piston assembly to its normal position; however, the gap between the magnet and the now extended indicating button is too large for the magnetic force to overcome the button spring force. As a result, the button remains in the extended position until the differential pressure decreases and is manually reset.