DID, Digital compact water treatment measuring system

Overview

Overview

The DID system with bypass flow cell is intended for monitoring and control of disinfectants, pH, ORP, conductivity and temperature. The system is preassembled on a common backplate and includes a control unit CU382, the water parameter sensor(s) with cable(s) to the control unit and the hydraulic assembly.

CU 382 control unit:

  • Intuitive plain-text operation
  • Data logger functionality (settings, calibration data and measured values)
  • Up to 3 controller outputs, freely assignable
  • Modbus (slave)
  • Modbus sensor interface
  • Data interchange with USB stick
  • Wide-range power supply

Water parameter sensors:

  • Modbus interface to CU 382 control unit
  • Onboard storage of calibration data
  • Temperature measurement and compensation included for all sensors
  • Pre-calibrated (pH, ORP, conductivity sensor)
  • Diaphragm-covered amperometric sensor principle for disinfectant sensors
  • Low pH dependency for free-chlorine sensors

Flow cell and hydraulic assembly:

  • Max. pressure at inlet: 3 bar Inlet/outlet hose connections suitable for hose sizes: 4/6mm, 6/9mm, 6/12mm, 9/12mm, xx/1/4", 1/4" x 3/8", 3/8" x 1/2"
  • Shut-off valve
  • Flow restrictor (limits to max. approx. 60l/h)
  • Flow switch (activated at approx. 30l/h)
  • Flow cell with sample water withdrawal assembly
  • Max. pressure on outlet: 0,5 bar

This configuration includes:

SensorsFree Chlorine, Total Chlorine, PAA, Hydrogen peroxide, Ph, Redox, Conductivity
SensortypeSensor(s) with plug
Cable length1,0 m, plugs on both ends
Allowable liquid temperature range5-45 °C
Voltage indications100-240 V
Power consumption max.)33 VA
Protection level of control unit / sensor(s)65/67

The controller CU 382

The control unit CU 382 is intended for monitoring and control of disinfectants, pH, ORP, conductivity and temperature.  

  • Intuitive plain-text operation
  • Data logger functionality (settings, calibration data and measured values)
  • Up to 3 controller outputs, freely assignable
  • Modbus (slave)
  • Modbus sensor interface
  • Data interchange with USB stick
  • Wide-range power supply
  • Multiple languages

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Replacement

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