Pressure sensors for harsh environments
Three new ranges of pressure sensors from Kistler Instruments use a new, patented double lip sealing method designed to eliminate the need for an O-ring seal. This helps ensure accuracy where extremely high temperature, vibration and shock are likely.
The piezoresistive sensing element is isolated from the pressure media by a welded 316L stainless steel or Hastelloy diaphragm. Integrated surface mount electronics provide signal conditioning and temperature compensation.
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 tested over both pressure and temperature ranges to ensure compliance with the appropriate specification. This calibration data, traceable to ISO 17025, is available.
A 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.
The new piezoresistive pressure sensors have been designed to withstand harsh operating conditions where extremes of temperature, vibration and shock are likely to be present. Typical applications include R&D, industrial, automotive and aerospace component and system testing.
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