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The water electrical conductivity controller for cooling towers should be simple and easy to operate. The key parameter to control is the concentration of dissolved solids, which we do through the control of the water conductivity. The water electrical conductivity controller for cooling towers Lakewood model 140 is a simple as that. Simplicity drives reliability and easy operation. Connect a water flow meter and now you can feed the chemicals based on water reposition or blowdown flow. Blowdown valve, water meter, and pumps are sold separately.
"Install a water cooling tower controller to automatically control blowdown. Work with a specialist to determine the maximum cycles of concentration the cooling tower system can safely achieve and the resulting conductivity (typically measured as micro Siemens per centimeter, µS/cm). A water cooling tower or, conductivity, controller can continuously measure the conductivity of the cooling tower water and discharge water only when the conductivity set point is exceeded. "
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1239594 - Water Cooling Tower Controller Only. (No Sensor or Plumbing).
1239595 - Water Cooling Tower Controller, Including Sensor Tee and Conductivity Sensor.
1239596 - Water Cooling Tower Controller, Including Left Exit Flow Switch Plumbing and Conductivity Sensor.
1269226 - Water Cooling Tower Controller, Including Right Exit Flow Switch Plumbing and Conductivity Sensor.
1239597 - Water Cooling Tower Controller, Including Left Exit Flow Switch Plumbing and Conductivity Sensor on a Mounting Plate (12 X 21).
1269418 - Water Cooling Tower Controller, Including Right Exit Flow Switch Plumbing and Conductivity Sensor on a Mounting Plate (12 X 21).
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)
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WE have installed other brands of contrrollers. We found this one very easy to operate and instal. Gets the job done and after 2 years is still working without a glitch. Best cooling tower conductivity controllers we have ever used.
We have used Lakewood Instruments in the past. The units are very reliable so we only had to replace previous unit after 20 years of service. The new unit was simple to install and easy to configure.