Setra 217 Ultra High Purity Pressure Transducer

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Product Highlights

  • Superior Stability Avoids Downtime
  • Available with C-Seal or W-Seal Pressure Port
  • EMI/RFI Immunity Prevents False Shutdown
  • Sturdy Design Allows Trouble-Free Installations
  • Optional UL 1604 and ATEX 94/9/EC Approval Available for 4 to 20mA Output Units

Description

Setra’s Model 217 designed for panels and modular “Block” gas sticks. Setra 217 is ideal for pressure measurement applications that require exceptional insensitivity to environmental extremes, example the temperature transients resulting from the flow of cold gas. The Model 217, available with a C-Seal or W-seal down-mount pressure port, the small swept sensor chamber for easy to purge. 316L VIM/VAR stainless steel is the standard material for all wetted parts. Passivated to 5 Ra (7 Ra. max.) finish, which eliminates surface irregularities and provides the proper surface chemistry for corrosion resistance, assuring contaminant-free gas distribution. Every sensor is mass spectrometer helium leak tested to 1 x 10-9 atm.cc/sec. The top external zero and span adjustments complete this unique design for all UHP down-mount applications. Setra’s patented variable capacitance sensor features a 316L stainless steel diaphragm and an insulated electrode plate. A variable capacitor formed between the electrode plate and the sensor body. The increase in pressure makes a slight rounding of the diaphragm, while reduces the capacitance. The capacitance change is detected and converted to a highly accurate linear DC electric signal by Setra’s unique custom integrated circuit, utilizing a patented charge balance principle. The entire Ultra-High Purity series of Setra based on Setra’s proven capacitive sensing technology with highly precise and stable voltage or current output signals hence virtually EMI/RFI immune.

Brand

Setra

Setra Systems, Inc. was founded in an age of transducer innovation. Our founders, Dr. Y.T. Li and Dr. S.Y. Lee were professors of engineering at the Massachusetts Institute of Technology and co-developers of the variable capacitance transduction principle. Building on this heritage of innovation, Setra has designed and developed the most comprehensive product lines of sensing devices in the world. Setra has been innovating test & measurement sensor designs for over 50 years and has become a leader in the pressure transducer market.
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Downloads

Data Sheet: Setra_Model_217_Data_Sheet User Manual: Setra_Model_217_Operating_Instructions

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