A. Brand/Model: Blue-White / CFS-2 CHEM-FEED Duplex Skid System or approved substitute. The following meter pump and skid auxiliary components shall be in place and complete as a unit. B. Multi-Diaphragm Metering Pump: 1. Brand/Model: Blue-White / MD3 CHEM-FEED Multi-Diaphragm metering pumps or approved substitute. 2. Quantity: Two (2). 3. Type: Variable Speed Dual Diaphragm. 4. Power Requirement: 120 Vac. 60 Hz, Single Phase. 5. Discrete Input Signals (Per Pump): Run command. 6. Discrete Output Signals (Per Pump): Run feedback. Fault signal. Device Run (Hand). Device Stop (Off). Device Auto (Auto). 7. 4-20mA Analog Input Signals (Per Pump): Dose rate setpoint in Gallons Per Hour (“GPH”). 8. 4-20mA Analog Output Signals (Per Pump): Flow rate in GPH. Can be a separate flow meter or a calculated signal, cannot be the input repeated back.
