Kistler Instruments introduces a range of precision piezoresistive pressure sensors

Three new ranges of pressure sensors from Kistler Instruments are exceptionally precise and stable even under harsh operating conditions where extremes of temperature, vibration and shock are present. Typical applications include R&D, industrial, automotive and aerospace component and system testing. The high performance has been achieved by using a new, patented double lip sealing method that eliminates the need for an O-ring seal. Contained in a high integrity housing, the oil filled, piezoresistive sensing element is isolated from the pressure media by a welded 316L stainless steel or HastelloyTM diaphragm. Integrated surface mount electronics provide signal conditioning and temperature compensation. The sensors will withstand more than 300% overpressure, a major cause of sensor failure, and have better than 0.05% full-scale repeatability over the full operating temperature range of minus 40 to plus 120 degrees Celsius The three ranges consist of absolute (Type 4260A), gauge (Type 4262A) and differential (4264A) with an accuracy of up to 0.05% FS and long-term stability of 0.1% FS per year. Every sensor is fully tested over both pressure and temperature ranges to ensure compliance with the appropriate specification. This calibration data, traceable to ISO 17025, is available on request. A wide range of electrical and pressure connections are available and ATEX zoned hazardous area types can be supplied to order. Pressure ranges from 1 to 350 barA for the 4260A, 0 to 35 barG for the 4262A and 0.1 to 10 barD for the uni-directional 4264A and ±0.1 to ±1 barD for the bi-directional 4264D. All have EMC, reverse polarity, power supply regulation and short circuit protection as standard and display exceptional linearity, hysteresis and repeatability characteristics. These new piezoresistive pressure sensors are part of the wide range of precision pressure, force and torque sensors manufactured by the Kistler Group.