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NG # 0722603‑HW‑LI‑0603
Model 140 Cooling Tower TDS Controller provides simple and reliable automation for cooling tower water management. With three output relays, conductivity monitoring, and inputs for a flow switch and water meter, it enables efficient bleed and chemical feed control. Its user-friendly programming and durable NEMA 4X enclosure simplify installation and operation.
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Custom Pricing
Get A QuoteModel 140 Cooling Tower TDS Controller offers dependable conductivity and chemical feed control for cooling tower systems. It features three output relays for bleed and chemical dosing, along with inputs for conductivity, a water meter, and a flow switch. The controller supports setpoint-based blowdown, biocide feed scheduling, and relay programming for alarms or automated feeds. With an easy menu setup, 4-20 mA output, and a durable NEMA 4X enclosure, it ensures reliable and efficient cooling tower automation.
Type: Model 140
Includes: Optional sensor and plumbing configurations
Output Relays: 2 selectable use and 1 blowdown relay
Flow Switch: Flow switch input
Water Meter: 1 water meter (contact head, paddle wheel or turbine) input
Output Signal: 1 isolated or non-isolated optionally powered 4-20 mA output
Mounting plate: Optional mounting plate
Conductivity Range: 0 – 10,000 μS
Temperature Compensation: 500 ohm NTC
Ambient Temperature: 32° – 120° F (0° – 49° C)
Sensor Type: 2 electrode conductivity sensor
Conductivity Resolution: ± 10 μS
Accuracy & Repeatability: ± 1.0%
Deadband/Setpoint: Adjustable
Enclosure: NEMA 4X, ETL
Timer: Max. blowdown time exceeded, relay runtime exceeded
Power: 120/240 VAC 50/60 Hz
Relay Ratings: 3A each, 10A total
Usage: Water treatment conductivity control
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