Lakewood Instruments Model 1575e Cooling Tower Water Treatment Conductivity Controller

The Model 1575e is a microprocessor based, menu driven, water treatment controller designed for use in cooling towers, chill loops, boilers and condensate systems. The Model 1575e provides for conductivity tracking and control, flow monitoring and chemical injection. The Model 1575e includes a 4-20mA input that can be used for remote conductivity, or pH, or traced chemistry control, or makeup conductivity for cycles of concentration control, or as one of several other different inputs. The Model 1575e can be operated with or without the use of the conductivity input. The Model 1575e is ETL approved.
The Model 1575e uses the latest in microprocessor capability, giving the user a high level of application flexibility. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. 
Security features allow full access to programming features or restrict access to viewing only. An operator password can help ensure that only authorized personnel will operate the system.
The Model 1575e is user-friendly with a graphical screen, numeric keypad, LEDs for power, alarm and relay status. It accepts multiple inputs and is easily configured. It’s a combination of reliability, accuracy, security and simplicity. 

Specifications

• Type: Model 1575e
• Includes: Optional sensor and plumbing configurations
• Output Relays: 3 selectable use and 1 blowdown relay
• Flow Switch: Flow switch input
• Water Meter: 2 water meter (contact head, paddle wheel or turbine) inputs
• Analog Input: 1 non-isolated internally powered 4-20 mA input
• Output Signal: 1 isolated or non-isolated optionally powered 4-20 mA output for conductivity
• Mounting plate: Optional mounting plate
• Drum Switch: 2 digital contact drum switch inputs
• Temperature Compensation: 500 NTC, None
• Ambient Temperature: 32° – 120° F (0° – 49° C)
• Sensor Type: 2 electrode conductivity sensor
• Conductivity Resolution: ± 10 μS (conductivity <5000 μS), ±100 μS (conductivity >5000 μS)
• Accuracy & Repeatability: ± 1.0%
• Deadband/Setpoint: Programmable
• Enclosure: NEMA 4X, ETL
• Timer: Max. blowdown time exceeded, relay time exceeded
• Power: 120/240 VAC 50/60 Hz
• Relay Ratings: 3A each, 10A total
• Usage: Water treatment conductivity, pH or ORP control

Features

• Removable power cord and receptacles for simple conduit installations.
• Scheduled feed, which can use three relays for biocides or other chemicals.
• 2 water meter inputs, 2 drum switch inputs, conductivity input, a flow switch input, a 4-20 mA output, and a 4-20 mA input are all standard features.
• The 4-20 mA input can be used with a transmitter for one of the following: remote conductivity, makeup conductivity, pH, ORP, percent, pressure, milliamps, flow rates, or traced chemistry control. This transmitter can be added in the field.
• Designed with a single circuit board for better reliability and lower cost.
• Large open shallow enclosure for easy wiring.
• Ball valve delay feature allows accurate control of motorized ball valves.
• 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.
• 1575e Controller can be used in boiler, cooling tower, or condensate applications when used with the appropriate conductivity sensor.
• Single circuit board design improves reliability.
• No add-on options. 4-20 mA output and feed schedule clock features are standard.

Plumbing

Downloads

• Quick Start Guide: Model 1575e Cooling Tower
• Product Manual: Model 1575e Cooling Tower
• Cutsheet: Model 1575e Cooling Tower
• Quick Start Guide: Model 1575e with Make-Up Conductivity Transmitter
• Quick Start Guide: Model 1575e with pH Transmitter