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LakewoodModel 140 -Cooling Tower Controller

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he 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.  Cooling Tower Water Treatment Controller W/Sensor and Flow Switch Plumbing on a Mounting Plate

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FEATURES

  • 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.

  • LED indicators for power, alarm and relay status.

BENEFITS

  • Easy to program with the Lakewood plain English, intuitive, and user friendly menu interface.
  • 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.

SPECIFICATIONS

Conductivity range 0-10,000 μS Output Signal One 4 – 20 mA, isolated or

Conductivity sensor 2 electrode non-isolated optionally

Conductivity Resolution ± 10 μS powered

Temperature comp. 500 ohm NTC Output relays 2 selectable use, 1 blowdown

Accuracy & repeatability ± 1.0% Relay ratings 3A each, 10A total

Deadband/Setpoint Adjustable Power 120/240 VAC 50/60 Hz

Auto/Manual outputs Menu selectable Ambient 32° - 120°F (0 - 49°C)

Keypad 16 tactile push-buttons Enclosure N E M A 4X, ETL

Display 16 X 2 Character

Water meter input Contact head, paddle wheel

or turbine Sensors/Plumbing Cooling Tower

Timer Max. blowdown time exceeded, Max Pressure 140 psi (9.65 bar)@ 100 °F

relay time exceeded Max Temp 140°F (60°C)

Min flow 1 gpm (3.785 Lpm)