Technical Specifications:

Operating Voltage: 5 VDC

Operating Current: less than 10 mA

Operating Temperature: -25 °C to 70 °C (non-freezing)

Make-up Water Flow Rate: Manual mode at 1 bar: greater than 5 L/min Automatic mode at 1 bar: greater than 2.5 L/min

Flow Frequency: F1 = 8.1Q − 3

                  F2 = 13Q − 6.5 (where F is frequency in Hz, Q is flow rate in L/min)