Pressure sensor handles harsh environments
An
American Sensor Technologies product story
Edited by the Engineeringtalk editorial team
Jun 30, 2005
The AST4310 pressure sensor is designed for measurement of gases and liquids in extremely harsh environments.
American Sensor Technologies 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 UL1604 (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 EN61326.
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.
Each unit is Parylene C coated for use in high humidity and H2S service.
The AST4310 also offers 100V/m of EMI/RFI protection from electrical noise commonly found in the oil and gas, compressor, and automotive industries.
Each unit is built with a 0.5in conduit for ease of installation where agency approvals are required.
AST also uses 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, AST4310 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 700bar.
Operating temperature range is -40 to +85C.
Available in outputs of 10mV/V, 0.5-4.5V ratiometric, 1-5V, 1-6V, 0.25-5V or 4-20mA, units offer better than +0.25% BFSL accuracy at 25C.
Pricing for the AST4310 starts at $350, with 100 unit pricing as low as $238.50.
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