Provide low cost flow verification on the suction side of the E-Series pumps.
Installation on the suction side insulates it from varying discharge parameters such as high or inconsistent pressures.
Use the moving liquid during the suction stroke to sense that the pump is metering chemical.
Validates flow, providing a pulse output for each verified flow pulse.
Can be used with a controller to totalize chemical and will sense when there is an air-lock condition (no output pulses).
Flowrates down to 0.1mL/stroke can be accurately monitored.
Operate with a 5-24VDC-power source, drawing a maximum of only 8mA.
Output is an NPN open collector dry contact closure.