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New Signal Controllers Complete the Loop

Posted: Tuesday 8th July 2008

A new range of electronic controllers has been introduced by chemical metering pump specialist, Signal Pumps. Designed expressly to provide advanced electronic control of chemical dosing for the water treatment, wastewater and process industries, their many options include remote monitoring and control from a mobile phone or laptop computer.

Used in conjunction with Signalís range of dosing pumps, these new controllers provide a compact, wall or alternatively panel-mounted system that completes the loop, giving an integrated controller and pump package.

There is a choice of sixteen models in the new Signal range of controllers, giving various progressions of control options. In terms of sophistication, they cover a range of needs from single function to multi parameter control. All data is graphically presented on the controllerís display panel in clear alphanumeric form.

The system controls the set dosing levels, with adjustable hysteresis and alarm set points, with both a minimum/maximum alarm window and a time delay function for each set point, enabling the system to function after a prescribed time delay of up to 255 seconds.

Among other features offered is unique password access, effectively giving the user the power the lock the system to prevent unauthorised tampering.

Another feature offered by Signal is the option of remote control via a mobile telephone or laptop computer.

As a company, Signal is a division of Birmingham-based Gee & Company, one of the UKís largest designers and manufacturers of chemical dosing systems. These are used extensively within many industries, including the process, potable water, effluent treatment and power generation industries. Many of its systems are also maintained by Gee under bespoke service contracts.

Based on this experience, Signal also offers a support and maintenance capability for users of its controller and pump combinations. One off the available options offered is a contract through which the Signal controller monitors dosing performance and feeds alarm and other data back to the Signal office, which is manned 24 hours a day, seven days a week. This allows the controller and related equipment to be housed safely under lock and key and for operational decisions to be made and implemented remotely.

Obviously, to complete the loop, these controllers have to be integrated with and connected to the dosing pump. The range of metering pumps marketed by Signal is equally as extensive as its range of controllers. Smaller models within the S100 and S200 ranges can be wall or tank mounted in conjunction with the controller. They can incorporate their own instrumentation features, which can include the facility to receive 4-20mA analogue control inputs, pneumatic or electrical servo control.

Operationally, these pumps are also widely used within the water, wastewater and process industries, and are noted for their simplicity of design and minimum of moving parts, which gives them their exceptional reliability record over prolonged periods of duty.

Further information from: Signal Metering Pumps, Gee Business Centre, Holborn Hill, Birmingham B7 5JR.
Tel. 0121 326 1700

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