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Dwyer Series 647 Wet/Wet Differential Pressure Transmitter

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 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.  Dimensional Information
 
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).
Agency Approvals: CE.
 
Popular Models:
Model Number Range
 647-0 0-1" w.c.
 647-1 0-3" w.c.
 647-2 0-25" w.c.
 647-3 0-5" w.c.
 647-4 0-10" w.c.
 647-5 0-1 psid
 647-6 0-5 psid
 647-7 0-15 psid
 647-8 0-30 psid
 
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