WTR PRO: TECHNICAL FEATURES WTR 004 Power Supply: 230VAC (+/-10%) 50/60Hz 12V DC Protection: IP65 Working Temperature: 0 -45ºC Relative Humidity max: 95% (without Condensation) Inputs: -Flow: Pulses Input optically insulated for highFrequency Flow Meters (padlewheel or electromagnetic) - PH: Input optically insulated for connecting a pH sensor. Temperature compensated - REDOX: Input optically insulated for connecting a Redox sensor. - Temperature: Pt100 Outputs: -2 analogue Outputs 4-20mA for Dosing Pumps. Control output with PI adjustment -2 analogue Outputs 4-20mA for register flow, pH or Redox - Flow Alarm Output: Relay Output NO. 24 VAC -1A max. - PH Alarm Output: Relay Output NO. 24 VAC -1A max. - REDOX Alarm Output: Relay Output NO. 24 VAC -1A max. Communications: - Serial port :RS485 DATA SHEET