Dwyer Instruments Inc. has released its NEW Series QPC Quadraplex Pump Controller. The controller is used where 4 pumps need to alternate to provide equal run time on each. By offering 5 inputs, controller allows 4 outputs to operate properly even if one input fails to open or close. It has 4 LED indicators that show load energized by SPST output contacts and is available in sequence-on-simultaneous-off and first-on-first-off configurations. In either, lead load position is advanced to equalize run time on each pump.
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