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Pressure sensors feature an extended temperature range of -40 to +150 degrees C

Mon, 11/11/2013 - 8:36am

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Merit Sensor Systems announced its TR Series temperature-compensated pressure sensor product line. The TR Series packaged pressure sensor features Merit Sensor’s “back-side entry” approach, where the sensing media cannot come in contact with the active, top side of the pressure sensing die. With this approach, the media remains isolated from the electronic circuitry of the Silicon pressure sensing element. This technology gives customers a robust and reliable solution while minimizing the greater size and costs associated with more expensive packaging approaches. 

The TR Series features an extended temperature range of -40 to +150 degrees C, making it ideal for applications in the industrial and automotive sectors.  The product also offers design flexibility for applications in the medical and aerospace markets. The fully temperature-compensated TR Series provides users with the ability to measure absolute or gage pressure up to 300 psi with a total error band (combined linearity, hysteresis and repeatability) of +/- 2.5 % Full Scale Output (FSO) over an extended temperature range of -40 to +150 degrees C.  It operates from a single supply voltage of 4.5 to 5.5 VDC and a supply current of 10 mA and requires no external components for proper operation.  Merit Sensor offers three standard packaging options: a) standard face seal; b) standard with gel-filled polycarbonate pressure port; and c) standard with ferrule and pins; as well as the ability to customize a packaging solution based on customers’ preferences.  

The building block of the TR Series packaged pressure sensor is Merit Sensor’s HM Series MEMS sensing element (bare die), built using the company’s proprietary Sentium® process.  The TR Series is specifically designed on ceramic to take full advantage of the wide temperature range capabilities provided by the Sentium process. Specifically, the TR Series utilizes a unique and proprietary packaging strategy to eutectically solder the internally manufactured Silicon HM Series sensing element. The TR Series also includes a signal conditioning ASIC in a 0.5 x 0.4 x 0.17 inch miniaturized sensing package (for standard part. Standard option with gel-filled pressure port dimensions – 0.50 x 0.40 x 0.31. Standard option with ferrule and pins dimensions – 0.94 x 0.40 x 0.175)  This packaging approach provides extreme robustness in harsh media environments and increases the burst pressure to three- times the maximum rated pressure range up to 150 C degrees, which significantly extends its operability and reliability.

APPLICATIONS

Industrial

·  HVAC

·  Industrial Automation

·  Refrigeration

Automotive

·  Transmission Pressure

·  Oil Pressure

·  Fuel rail

·  EGR/Exhaust

Medical

PRICE AND DELIVERY

The Merit Sensor TR Series is priced at $11.75 each in 10,000 unit quantities.  Standard device options are available from stock.


www.meritsensor.com

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