Dwyer Series 647

Series 647 Wet/Wet Differential Pressure Transmitter

Dwyer Series 647
Series 647

Ranges from 0 to 1″ w.c., ±1.0% Accuracy, NEMA 4 Enclosure, 2-Wire

Monitor differential pressure in air/liquid flow systems, HVAC automation, pneumatic systems and process control with the Dwyer 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.

 

Dwyer Series 647 Specifications

  • 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).

 

Available Models

MODELDESCRIPTION
647-0Wet/wet differential pressure transmitter, range 0-1" w.c.
647-1Wet/wet differential pressure transmitter, range 0-3" w.c.
647-2Wet/wet differential pressure transmitter, range 0-25" w.c.
647-3Wet/wet differential pressure transmitter, range 0-5" w.c.
647-4Wet/wet differential pressure transmitter, range 0-10" w.c.
647-5Wet/wet differential pressure transmitter, range 0-1 psid.
647-6Wet/wet differential pressure transmitter, range 0-5 psid.
647-7Wet/wet differential pressure transmitter, range 0-15 psid.
647-8Wet/wet differential pressure transmitter, range 0-30 psid.