STW has developed the SMX.pt-ma1, a pressure sensor for harsh environments in mobile machinery and industrial applications. The pressure transmitter features a completely redesigned measuring cell using thin-film technology and a revised system design for particularly economical production.
The SMX.pt-ma1 pressure sensor is based on a newly developed measuring cell design from STW’s sister company KMW. The basis of this pressure sensor is a thin-film measuring cell welded to the pressure transducer, which guarantees high media compatibility. The SMX.pt-ma1 offers a modular design that makes it easy to implement individual manufacturer requirements. Thanks to the new system architecture, particularly economical production in high quantities is possible despite the high degree of assembly, as Andreas Huster, head of sensors and measurement technology at STW, explains: “The production and testing process is optimized for large series. The SMX.pt-ma1 is produced, checked and tested in batches of several hundred units. This enables us to offer the sensor at a very competitive price, which benefits our customers in the market.”
The CE-compliant SMX.pt-ma1 measures pressure in ranges from 0 to 100, 250, 400, 600 or 800 bar. The overload pressure is at least twice the maximum value, and the burst pressure is at least four times the maximum value. The operating temperature range is from -40 to +125 °C, and the IP protection class rating is IP67. The shock resistance is 100 g, and the SMX.pt-ma1 can withstand vibrations of up to 20 g on a continuous basis. A wide range of mounting threads and electrical interfaces are supported.