Walchem W600-CT Cooling Tower Controller

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SKU:
W600-CT
Weight:
15.00 LBS

Cooling towers are used in various industrial processes to lower temperature of water stream. There are several factors that help ensure the performance of these devices. Conductivity, level of dissolved solids, corrosion inhibitor, feed inhibitor, and biocide chemicals are a few of them. The cooling tower controllers are the devices that allow process owners to take care of these factors efficiently. There are several cooling tower controller technologies available in the market, which allow process owners to maximize the value of their investments. Walchem’s W600-CT Cooling Tower Controller is one such technology that offers a reliable and powerful control of your water treatment program. At Cannon Water Technology, Inc., this cooling tower controller is provided under SKU – W600.

Specifications of Walchem W600-CT Cooling Tower Controller
The following specifications of Walchem W600-CT cooling tower controller makes them an industry standard.

  • Power: 100-240 VAC, 50 or 60 Hz, and 7A max
  • Fuse: 6.3 Amp
  • Enclosure: Polycarbonate Resin, NEMA 4X, lockable hinged door.

Digital Input Signals
Inputs


Sensor Input Signals (0, 1 or 2 depending on model code)

Contacting Conductivity

0.01, 0.1, 1.0, or 10.0 cell constant   OR

Electrodeless Conductivity

OR

Disinfection

OR

Amplified pH or ORP

Requires a preamplified signal. Walchem WEL or WDS series recommended.
±5VDC power available for external preamps.

 

Each sensor input card contains a temperature input

Temperature

100 or 1000 ohm RTD, 10K or 100K Thermistor

Analog (4-20 mA) Sensor Input (0, 2 or 4 depending on model code)

Capability

2-wire loop powered and self-powered transmitters supported
3-wire and 4-wire transmitters supported

Each dual sensor input board has two channels

Channel 1, 130 ohm input resistance and Channel 2, 280 ohm input resistance. The combination input board has one channel, 280 ohm input resistance.

Available Power

One independent isolated 24 VDC ±15% supply per channel. 1.5 W maximum for each channel. 2W (83 mA at 24 VDC) total power consumption for all channels (four total channels possible if two dual boards are installed; 2W is equivalent to 2 Little Dipper sensors)

Digital Input Signals

State-Type Digital Inputs

Electrical

Optically isolated and providing an electrically isolated 9V power with a nominal 2.3mA current when the digital input switch is closed.

Typical response time

< 2 seconds

Devices supported

Any isolated dry contact (i.e. relay, reed switch)

Types

Interlock

Low Speed Counter-Type Digital Inputs

Electrical

Optically isolated and providing an electrically isolated 9V power with a nominal 2.3mA current when the digital input switch is closed, 0-10 Hz, 50 msec minimum width.

Devices supported

Any device with isolated open drain, open collector, transistor or reed switch.

Types

Contacting Flowmeter

High Speed Counter-Type Digital Inputs

Electrical

Optically isolated and providing an electrically isolated 9V power with a nominal 2.3mA current when the digital input switch is closed, 0-500 Hz, 1.00 msec minimum width.

Devices supported

Any device with isolated open drain, open collector, transistor or reed switch.

Types

Paddlewheel Flowmeter

Outputs

Powered Mechanical Relays (0 or 6 model code dependent)

  • Pre-powered on circuit board switching line voltage
  • All relays are fused together as one group, total current must not exceed 6A (resistive), 1/8 HP (93W)

Dry Contact Mechanical Relays (0, 2 or 4 model code dependent)

  • 6 A (resistive), 1/8 HP (93W)
  • Dry contact relays are not fuse protected

Pulse Outputs (0, 2 or 4 model code dependent)

  • Opto-isolated, solid-state relay, 200mA, 40V DC
  • VLOWMAX = 0.05V @ 18mA

4 - 20 mA (0 or 2 model code dependent)

  • Internally powered, Fully isolated
  • 600 Ohm max resistive load, Resolution 0.0015% of span
  • Accuracy ± 0.5% of reading

Mechanical Controller


Enclosure Material

Polycarbonate

Enclosure Rating

NEMA 4X (IP65)

Dimensions

9.5 x 8 x 4” (241 x 203 x 102 mm)

Display

320 x 240 pixel monochrome backlit display with touchscreen

Ambient Temperature

-4 to 131°F (-20 to 55°C)

Storage Temperature

-4 to 176°F (-20 to 80°C)

Key Features of Walchem W600-CT Cooling Tower Controller
The following are the key features of dual cooling tower controller. These features have immensely contributed to their acceptance in the industry.

  • Easy Setup: There is a touchscreen display which is large and equipped with icon based programming. In addition to this, multiple language support is offered during the set up.  All these features make it easy to set up, and extremely user-friendly.  
  • Flexibility: The flexibility is brought by a universal sensor. The controller is compatible with all types of sensors. Analog input board and combination sensor input adds to the flexibility of the device. In addition to these, a complete flexibility is guaranteed with each relay. They include:
    • Timer-based activation
    • On/off Setpoint
    • Pulse Proportional Control and PID Control (available on 4-20 mA or pulse solid state opto outputs)
    • Time Proportional Control
    • Out-of-Range or In-Range Activation
    • Timer-based Activation
    • Probe Wash
    • Timed Activation Triggered by a Paddlewheel flow meter’s total flow or a Water Contactor
    • Activation as a Percent of Another Output’s On-time
    • Activation on the Basis of a Contact Closure
    • Spike Set Point
    • Boiler Blowdown on Conductivity Using Intermittent Sampling and Biocide Timer for Boiler and Cooler Applications.
  • Excellent Control: The device offers lead lag control up to 6 relays. Datalogging is also provided by the device. It can email alarm messages, system summary reports, and datalog reports, thereby informing a user of necessary steps to be taken for proper functioning of the cooler tower.
  • Certifications
    The dual cooling tower controller possesses the following certifications:

    Safety

    UL 61010-1:2012, 3rd Edition
    CSA C22.2 No.61010-1:2012, 3rd Edition
    IEC 61010-1:2010 3rd Edition
    EN 61010-1:2010 3rd Edition

    EMC

    IEC 61326-1:2012
    EN 61326-1:2013

    To know more about Walchem W600-CT cooling tower controller or any other cooling tower controllers, please contact our team today.

    Know more about the products through PDF :-

    Walchem W600 Controller Manual

    Walchem W600 W900 Controller Modbus Manual

    Water Treatment Controller Brochure

    Water Treatment Controller Instruction Manual