Xylem HYDROVAR (HV2.1 - 3.45) - Manual (Page 30)

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Pump running signal
Fault signal
Digital input
Voltage signal input 0/2 - 10V
Current signal input 4 - 20mA
Analogue output 0 - 10V
Ground
Ground
Actual-value-signal input 4 – 20mA
+15 VDC Transducer supply
External on/off
Low Water
Motor thermoswitch or PTC
RS 485