LIQUITRON™ DC4500 Series, Conductivity Controller



Control Cooling Tower Water Treatment with Confidence

The LIQUITRON DC4500 Series Conductivity Controller is a microprocessor-based control system that will operate in a variety of water treatment applications. The DC4500 controller provides a set point and relay for conductivity control with a variety of timer functions to control chemical addition, including dual biocides. Pumps may be controlled in either ON/OFF or external trigger mode.

Controller programming is intuitive and requires only three keys. The backlit LCD display provides a visual indication of operating conditions and equipment status to give you the most control over your water treatment process.


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  • Benefits
  • Specifications
  • Downloads
  • 0-20,000 µS control range
  • Display units in µS or in PPM/TDS
  • Temperature display in °C or °F
  • High and low alarm with output relay
  • Water meter totalizer (gallons/liters)
  • 4-20 mA recorder output (standard)
  • Flow switch compatible (N.O. or N.C.)

  • Pulse (External trigger)
    1-999 seconds run-time, 1-100 count
  • % of Time
    1-100 minute cycle, 1%-100% on-time
  • Limit (Feed and Bleed)
    1-999 minute limit
  • % of Bleed (Feed after Bleed)
    1%-100% of bleed time
  • With limit of
    1-999 minute limit


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