When a pneumatically operated pump such as the AutoPump has filled, it triggers itself “On” to start its discharge cycle. This allows air to flow to the pump until a certain volume of fluid has discharged. The air stops; the pump fills; then the cycle continues to repeat.

The Cycle Counter is mounted between a filter/regulator and a pump. The Cycle Counter senses air flow to the pump.

In a piston-like action, the internally located magnet shuttle moves forward (in the direction of air flow) during the “On” cycle and returns to a seated position in the “Off” cycle.

The digital display senses the completion of the magnet shuttle movement and records the cycle, increasing the number one digit that is shown in the clear plastic display.

This process repeats itself for each pump cycle.