This all-digital electric stroke controller regulates the flowrate of metering pumps in response to a 4-20-mA DC control signal. The unit also accepts 0–5 Vdc and 0–10 Vdc analog control signals or can be operated from incremental dry-contact closures. The new actuator has the same housing structure as its analog predecessor, allowing for easy upgrade of older pumps. It improves on the older design by simplifying configuration and calibration through the use of color-coded push buttons, LEDs and a single adjustment knob. Both customer calibration and factory-default settings are retained in the device’s memory, even during power failure.
Company
Neptune Chemical Pump Co.