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New GE Pressure Transmitter For Wet Well Level Control
Groby, England – August 7, 2007.
The robust and easy-to-install PTX 1290 submersible
pressure transmitter from GE Sensing has been specially designed for the efficient control of pumps in sewage lift stations. The transmitter has already been field-proven in the United States but its recent ATEX certification now fits it for use in EU installations and in those areas of the world which recognise the ATEX certification for equipment intended for use in potentially hazardous environments.
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The new transmitter is of all Titanium construction to ensure excellent life in the most hostile of environments, including immersion in wastewaters containing corrosive and hazardous chemicals. A flush, PTFE-coated elastomeric diaphragm provides for continuous operation in situations where particulates and biosolids could normally clog the pressure sensor, while the silicone grease pressure transfer medium maintains its elasticity between -40ºC and 121ºC, to give a sensor operating range of -20ºC to 60ºC. Allied to the transmitter’s fully-isolated, waterproof design, this allows the transmitter to operate in water that freezes and thaws.
The control of level by hydrostatic pressure in sewage lift stations, or wet wells, offers significant advantages over ultrasonic level control. For example, there are no problems with establishing line of sight between the transmitter and the water level, and there is no possibility that foaming, installation hardware or floating objects can disrupt readings. Pressure transmitters are not subject to flood damage and, being submerged, they are protected from vandalism.
The PTX 1290 is currently the only submersible pressure transmitter for this demanding application which carries ATEX certification in a Titanium construction. It uses GE Sensing’s advanced, micro-machined silicon piezo-resistive pressure sensing technology, which provides the sensor with high stability, shock- and vibration-resistance and an accuracy of <±0.25% of full scale. It has an operating depth range of 1.75mH2O to 15mH2O and an output of 4 to 20mA.
About GE Sensing
GE Sensing is a leading innovator in advanced measurement and sensor-based technology solutions. GE Sensing designs and produces precision instruments and systems that measure temperature, pressure, liquid level, humidity, gas concentration, and flow rate for the most demanding customer applications. GE Sensing serves customers around the world in the aerospace, healthcare, transportation, process and industrial businesses.
Druck, General Eastern, Kaye, NovaSensor, Panametrics, Telaire, Thermometrics and Ruska are now part of one team, under one name: GE Sensing. For more information, visit: www.gesensing.com
Media contact:
Lindsay Theile
GE Sensing
Tel: +1 978 437 1410
Email: lindsay.theile@ge.com
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