647 Wet/Wet Differential Pressure Transmitters

Temperature compensated units, provides a 4 - 20 mA output signal which can be interfaced with chart recorders, data loggers, and more

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$742.00 CAD
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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 - 20 mA output signal which can be interfaced with chart recorders, data loggers and computerized monitoring and control systems.

• 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


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 32F - 122F (0C - 50C)
Pressure Limits Ranges 1 in 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 VDC - 30 VDC
Output Signal 4 - 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 in female NPT
Housing Gasketed steel epoxy painted, NEMA 4 (IP56)
Weight 14 oz (397 g)

• Flow
• Process control
• HVAC automation
• Pneumatic systems