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Model 140 Series Cooling Tower Controller

The Model 140 uses the latest in microprocessor capability, giving the user a high level of application flexibility. Multiple inputs and very easy setup characterize this new technology. Water meters, sensors and plumbing assemblies are purchased separately.

  • Use this Controller for Cooling towers.
  • Removable power cord and receptacles for simple conduit installations.
  • Scheduled feed, which can use two relays for biocides or other chemicals.
  • One (1) water meter input, conductivity input, flow switch input, and 4-20 mA output are all standard features.
  • Designed with a single circuit board for better reliability and lower cost.
  • Large open shallow enclosure for easy wiring.
  • The enclosure is rated NEMA 4X.
  • Power selector switch for 115 or 230 vac operation.
  • 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.
  • Easy to program, the Model 140 Controller menu is just like the Lakewood model 1575e controller.
  • Single circuit board design improves reliability.
  • No add-on options. 4-20 mA output and biocide features are standard.
  • Multiple methods of chemical feed for application flexibility.
  • Conductivity range 0-10,000 mS
  • Conductivity sensor 2 electrode
  • Conductivity Resolution ± 10 µS
  • Temperature comp. 500 ohm NTC
  • Accuracy & repeatability ± 1.0%
  • Deadband/Setpoint Adjustable
  • Auto/Manual outputs Menu selectable
  • Keypad 16 tactile push-buttons
  • Display 16 X 2 Character
  • Water meter input Contact head, paddle wheel or turbine
  • Timer Max. blowdown time exceeded, relay time exceeded
  • Output Signal One 4 – 20 mA, non-isolated powered output
  • Output relays 2 selectable use, 1 blowdown
  • Relay ratings 3A each, 10A total
  • Power 120/240 VAC 50/60 Hz
  • Ambient 32° – 120°F (0 – 49°C)
  • Water temperature 32°- 140°F (0 – 49°C)
  • Pressure 140 psi
  • Enclosure NEMA 4X
Controller Options

1239594 Controller Model 140 controller only

1229595 Controller Model 140, w/sensor and plumbing tee

1229596 Controller Model 140, w/sensor and flow switch plumbing

1229597 Controller Model 140, w/sensor and flow switch plumbing on a mounting plate

Cooling Tower Options
Cooling Tower Flow Switch Plumbing w/Sensor
Cooling Tower Sensor Tee and Conductivity Sensor

1167158 Cooling Tower sensor with 20 ft of cable.

1169440 Plumbing Tee.

1107003 Flow Switch Plumbing.