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The Series 75 controller is designed for the small commercial reverse osmosis systems. This controller incorporates relay output and dry contact inputs to either run or shutdown as necessary for proper operation. The series 75 has up to three relay outputs: inlet solenoid valve, RO pump motor, and an optional flush solenoid valve.
The controller's three inputs will monitor the inlet pressure, tank level, and pretreatment lock. An LED on the front of the controller will visually indicate the operating status of the RO unit. The Series 75 controller can operate a one horse power single phase pump motor directly with the RO pump relay output. This controller provides crucial time delays required to prevent the RO unit from false shutdowns.
All of the adjustments are made with the six position dip switch located in the center of the PCB. This controller provides the OEM a sufficient level of control at an economical price.
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