140 Microprocessor Based Cooling Tower Conductivity Controller

$1,175.00

Availability: 999 in stock

Lakewood Instruments Model [ 140 ] Cooling Tower Controllers include (3) output relays and (1) water meter input, (1) conductivity input, (1) flow switch input, and (1) 4-20mA output. Control cooling tower conductivity with setpoint and scheduled feed via (2) chemical feed pumps and (1) blowdown valve

 

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.
  • Conductivity range: 0-10,000 µS
  • 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, isolated or non-isolated optionally powered
  • 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)
  • Enclosure: NEMA 4X, ETL
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