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