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Last Updates: 05/12/2020

Dwyer Series 647 Wet/Wet Differential Pressure Transmitter

Monitor differential pressure in air/liquid flow systems, HVAC automation, pneumatic systems and process control with the Series 647 Wet/Wet Differential Pressure Transmitter. Units are temperature compensated and provide a 4 to 20 mA output signal which can be interfaced with chart recorders, data loggers and computerized monitoring and control systems.

California Residents:  Click Here for Proposition 65 WARNING.

Product Applications

  • Flow
  • Process control
  • HVAC automation
  • Pneumatic systems

Service : Compatible gases or liquids on both pressure and reference sides.

Wetted Materials : Brass, vinyl, glass-filled polyester, silicon, and florosilicone.

Accuracy : ±1.0% FS.

Stability : ±1.5% FS output/year.

Temperature Limits : 32 to 122°F (0 to 50°C).

Pressure Limits : Ranges 1″ w.c. to 5 psi; 20 psi, 15 psi range; 45 psi, 30 psi range; 60 psi.

Thermal Effects : Zero: ±0.05% FS/°F, Span: ±0.05% rdg/°F.

Power Requirements : 18 to 30 VDC.

Output Signal : 4 to 20 mA, 2-wire.

Zero and Span Adjustments : Adjustable, ±10%.

Loop Resistance : 400 Ω @ 18 VDC, 600 Ω @ 24 VDC, 1000 Ω @ 30 VDC.

Electrical Connection : Screw terminals, reverse polarity protected.

Process Connections : Two 1/8″ female NPT.

Housing : Gasketed steel epoxy painted, NEMA 4 (IP56).

Weight : 14 oz (397 g).

  • Versatile for liquid or gas supports designs requiring more precise measurements in support of application
  • Temperature compensated improves performance of device for accurate measurement under different operating environments
  • Output signal provides capability to interface with automation systems to centralize monitoring

Product Literature

Manual

Catalog Pages

 

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