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Dwyer 642 Series Pressure Transmitter, 0.1% Accuracy, SS Wetted Parts


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Series 642 Pressure Transmitter

Ranges to 100 PSI

0.1% Full Span Accuracy, 4-20 Ma Signal



The Series 642 Pressure Transmitter uses high end ASIC technology to compensate for both linearity and thermal errors, providing an output with an accuracy of 0.1% of F.S. The 642 is therefore well suited for applications where precision measurement and control is an absolute must. Units are constructed of 316 and 316L SS wetted parts for superior compatibility. Zero and span are independently adjustable.

The 642 Series Pressure Transmitter is ideal for use in harsh environments!




  • Service: Liquid, Gas or vapor

  • Process Connection: Dual-size 3/8" male NPT, 1/8" female NPT

  • Wetted Material: Types 316, 316L SS

  • Accuracy: ±0.1% FS

  • Temperature Limits: -40 to 150°F

  • Pressure Limits: 2X Maximum range

  • Supply Voltage: 10 to 30 VDC

  • Output: 4 to 20 ma 2-wire

  • Zero and Span Adjustment: Adjustable

  • Enclosure: Stainless Steel and Valox

  • Conduit Connection: 1/4" - 18 Knockout

  • Designed to meet NEMA 4



The 642 Series  Pressure Transmitter

Popular Models.

Model Number Pressure Range
 642-1 0-15 psig (0-1.03 bar)
 642-2 0-30 psig (0-2.07 bar)
 642-3 0-50 psig (0-3.45 bar)
 642-4 0-100 psig (0-6.90 bar)



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