Bullet Sensors & Transducers e-Digest, Vol. 57, Issue 7, July 2005: Product News

    (ISSN 1726- 5479)


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Pressure Sensor Built For Hazardous Areas Offers Zero and Span Adjustability


Landing, NJ, American Sensor Technologies, Inc. offers the AST4310 Pressure Sensor for measurement of gases and liquids in extremely harsh environments. This stainless steel, media isolated pressure sensor is approved to UL 1604 (CSA 213) Class 1 Div 2, Groups A, B, C, and D for use in hazardous locations. The AST4310 also holds a CE Approval of EN 61326. This high accuracy adjustable pressure sensor is suitable for applications in oil patch regions, refineries, water treatment plants, pulp and paper processing, natural gas compressors and pharmaceutical applications.


Manufactured with customer convenience in mind, the AST4310 Pressure Sensor offers trouble-free access to zero and span potentiometers for quick tweaking in the field. Zero and span adjustments can be made up to 5% for fine-tuning of the measurement loop, which is important for precise set up or maintenance calibration.


AST also utilizes its own-patented Krystal Bond Technology to further enhance sensor performance by reducing long-term drift to just 0.25% per year. The use of Krystal Bond technology, coupled with a unique one-piece sensing element design, offers many advantages over other technologies including high-temperature operation, high cyclic life and high overload and burst pressure capabilities.


The AST4310 Pressure Sensor is offered in a range of wetted materials such as stainless steel 316L low carbon steel (hydrogen service), Inconel 718 (sea water and oil and gas field instrumentation) and titanium (medical products/chemicals) to provide safe operation and high productivity in a variety of media. For example, in hydrogen applications, AST 4310 Pressure Sensors employ wetted parts made from 316 L stainless steel to promote long life and resistance to media corrosion.


Measurements are available in gauge and sealed gauge pressure covering ranges up to 10,000 PSI (700 bar). Operating temperature range is -40 to 85C (-40 to 185F). Available in outputs of 10mV/V, 0.5-4.5 V ratiometric, 1-5V, 1-6V, .25-5V, or 4-20mA, units offer <+0.25% BFSL accuracy at 25 C (77F).


AST4310 pressure sensor





Karmjit S. Sidhu

American Sensor Technologies

Tel.: 973-398-9900

E-mail: kssidhu@astsensors.com



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