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How does a 8501XO pnematic timer or XTE timer attachment operate?

When the timer is energized the ambient air starts to flow through a bellows chamber. Setting the time will determine how wide the chamber will open and sets the time for the air to pass. When all of the air has passed through the chamber the contacts will then change back to the original state. The timing mode will determine when the output contacts will open and close.

CTA-ID : 2023972
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