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1575E Microprocessor Based Cooling Tower Conductivity Controller


1000 in stock

  • Removable power cord and receptacles for simple conduit installations.
  • Scheduled feed, which can use three relays for biocides or other chemicals.
  • 2 water meter inputs, 2 drum switch inputs, conductivity input, a flow switch input, a 4-20 mA output, and a 4-20 mA input are all standard features.
  • The 4-20 mA input can be used with a transmitter for one of the following: remote conductivity, makeup conductivity, pH, ORP, percent, pressure, milliamps, flow rates, or traced chemistry control. This transmitter can be added in the field.
  • Designed with a single circuit board for better reliability and lower cost.
  • Large open shallow enclosure for easy wiring.
  • Ball valve delay feature allows accurate control of motorized ball valves.
  • Heavy-duty stainless steel domed numeric keypad and illuminated graphical display allow for quick and easy programming. Steel domed switches improve the tactile sensing and life expectancy of the keypad.
  • LED indicators for power, alarm and relay status.


  • Easy to program with the Lakewood plain English, intuitive, and user-friendly menu interface.
  • 1575e Controller can be used in boiler, cooling tower, or condensate applications when used with the appropriate conductivity sensor.
  • Single circuit board design improves reliability.
  • No add-on options. 4-20 mA output and feed schedule clock features are standard.
  • Type: Model 1575e
  • Includes: Optional sensor and plumbing configurations
  • Output Relays: 3 selectable use and 1 blowdown relay
  • Flow Switch: Flow switch input
  • Water Meter: 2 water meter (contact head, paddle wheel or turbine) inputs
  • Analog Input: 1 non-isolated internally powered 4-20 mA input
  • Output Signal: 1 isolated or non-isolated optionally powered 4-20 mA output for conductivity
  • Mounting plate: Optional mounting plate
  • Drum Switch: 2 digital contact drum switch inputs
  • Temperature Compensation: 500 NTC, None
  • Ambient Temperature: 32° – 120° F (0° – 49° C)
  • Sensor Type: 2 electrode conductivity sensor
  • Conductivity Resolution: ± 10 μS (conductivity <5000 μS), ±100 μS (conductivity >5000 μS)
  • Accuracy & Repeatability: ± 1.0%
  • Deadband/Setpoint: Programmable
  • Enclosure: NEMA 4X, ETL
  • Timer: Max. blowdown time exceeded, relay time exceeded
  • Power: 120/240 VAC 50/60 Hz
  • Relay Ratings: 3A each, 10A total
  • Usage: Water treatment conductivity, pH or ORP control
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