Control Systems



EquipSolutions offers a variety of dedicated cooling water, boiler water, and specialized controllers



Walchem W900 Approach

The Walchem web-based controller (W900) is one of the latest additions to our equipment line. This controller is an excellent fit for the many chemical treatment applications associated with the water treatment & paper industries.

Data logging is becoming a major concern within many industries today. Accurate data logging is now generating the same level of interest as energy efficiency and operational benefits.

The W900 controller has a flexible multi- input/output platform, a wide range of analytical sensor measurement capabilities, and an extensive assortment of integrated communications and data handling features to meet the needs of the water treatment and paper industries.

The controller offered by EquipSolutions is unlike any other online industrial chemical dosing controller. It fully integrates the functions of a transmitter, PLC, data logger, and auto-dialer into a rugged, industrial. NEMA 4X package.

The controller’s local interface touch-screen is accessible on the front panel, and the waterproof USB connectors and power switch are mounted on the bottom of the controller. This enables the operator to utilize all the capabilities of the controller, even when installed in a wet or corrosive environment, without opening the door and compromising the NEMA rating.

The software has the same user-friendly look and feel as any typical web page and can be accessed using a standard web browser. The controller offers a wide range of control algorithms which include 4- 20 mA proportional control, time proportional control, set point on/off control, high speed and event triggered data logging, flexible alarm relays, one-way interlocks, and the ability to select which parameters are included on the front LCD.

The controller can be accessed in several ways including, USB, Ethernet (LAN), Internet, Wi-Fi, Modbus or Modem.

As an option, the W900 controller can be programmed to communicate directly with the plant DCS. The communication protocol will be Modbus TCP over an Ethernet Cat. 5 or Cat 6E cable. The entire EquipSolutions controller memory map can be transmitted to the plant DCS and used to populate DCS screens created by our customers. We can assist with the Modbus TCP/IP memory map addressing structure and integration process if required.


Walchem W900 Application Examples

A W900 would typically be selected for light industrial applications where a lower or fixed I/O count is required to meet the application needs such as:

– Water Treatment Applications
 (with flexible but fixed I/O)
– Cooling tower
– Boiler
– Influent & Effluent
– pH Neutralization
– Reverse Osmosis
– Dissolved Solids Removal
– Process Water
– Product Cleaning
– Defoamer
– Clean In Place


Walchem W600 application examples

A W900 would typically be selected for light industrial applications where a lower or fixed I/O count is required to meet the application needs such as:

– Water Treatment Applications
 (with flexible but limited I/O)
– Cooling tower
– Boiler
– Influent & Effluent
– Dissolved Solids Removal
– Product Cleaning
– Defoamer



Crius NA Controller Approach

The CRIUS NA controller offers more specialized sensor connections, more functionality and more flexibility with a color screen and optional built in 4G modem. The CRIUS NA controller is a great fit for diverse applications requiring very accurate process variable measurement. Optional communications packages allow Profibus, Modbus ASCII, Modbus RTU, Modbus TCP and others.

The CRIUS NA controller is equipped with the capability to connect to four sensors of any type with appropriate analog outputs and relays. If more than four sensors are required, up to three additional blind Crius units can be linked together to expand the I/O count. The three additional expansion units will share the same display and communications.

CRIUS has developed improved accuracy with sensors, electronics and accessories. Pairing amperometric sensor technology with and open flowcell, to remove pressure variations, has demonstrated success in a variety of applications including:

– Free & Total Chlorine
– Peracetic Acid
– Chlorine Dioxide
– Ozone

CRIUS has also demonstrated success in harsh envorinments, specifically fiberous and high solids waters. The Automatic Sensor Cleaning System consists of a large flow cell that automatically empties on a user selectable time basis. The repeated flushing of the housing and sensor helps prevent the build-up of solids and prolongs the life of the sensor and reduces maintenance. For waxy or fatty build-ups warm water can be used to flush the sensors.

Equipped with data-logging as standard and multiple PID loops as options, the CRIUS NA controller is very able to control complex water treatment processes at a competitive cost.

The CRIUS NA controller can provide all users with their own login credentials, and with three levels of instrument and remote access security.




CRIUS NA Application Examples

A CRIUS NA controller would typically be selected for light industrial applications requiring specialized sensors with extremely accurate process variable measurement and where a lower or fixed I/O count is required to meet the application needs such as:

– Applications requiring specialized sensor with extremely accurate measurement (with flexible but limited I/O)
– Food Processing (poultry, beef, pork)
– Food & Beverage
– Swimming Pools & Spas
– Potable Water Treatment
– Hotels & Resort
– Leather Industry
– Travel Industry
– Clean In Place