LW64

The Pulsatron Series CW pump was designed to control conductivity and feed inhibitor in an open-air cooling tower. Chemical feed is initiated and controlled by input from a water meter. The Series CW combines everything you need to control conductivity and feed inhibit into one unique, compact package to create a simple and cost effective metering control system.
The Series CW includes a solenoid actuated metering pump, conductivity sensor, bleed relay and a dry contact input for water meter control. At set-up, the operator sets the conductivity set point, differential (or dead-band), the pump stroke frequency and run time. When conductivity reaches the set point, the system activates the bleed relay.
As make-up water passes through the water meter, it generates a series of pulses based on volume of flow. The pump counts the pulses until the total reaches the Count set point. The pump runs at the frequency and run-time specified at set-up and the count is reset.

Features:

• 120 VAC or 250 VAC @50/60 Hz, 5A max
• 4-electrode conductivity input
• 0-6000 µS/cm ±1% temperature compensated
• Relay rated at 5A at 240 VAC
• Isolated dry contact flow switch input
• Isolated dry contact water meter input
• 4 Digit LED, 9 key membrane keypad
• Single-button function keys
• Set, Differential, Calibration, Pulse Timer, and Count functions
• Stroke rate adjusts 0-100% in 1% increments, turndown ratio 100:1.