Dwyer

645 Wet/Wet Differential Pressure Transmitter

Quick response capacitance sensor delivers a 4 - 20 mA output signal and 0.25% accuracy

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$819.00 CAD
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Series 645 Wet/Wet Differential Pressure Transmitters are designed for use with compatible gases and liquids which can be applied to both the pressure and reference ports. Quick response capacitance sensor delivers a 4 - 20 mA output signal proportional to differential pressure with ± 0.25% accuracy. The Series 645 transmitters are ideal for process control, filter condition monitoring, refrigeration equipment, pump speed control, HVAC equipment, and liquid level measurement.

• Versatile, high-accuracy device for liquid or gas supports designs requiring more precise measurements in support of application

Service Compatible gases or liquids on both pressure and reference sides
Wetted MAterials 17-4 PH stainless steel, 300 Series stainless steel, fluoroelastomer and silicone O-rings and bleed screw seals
Accuracy 0.25% FS (RSS)
Temperature Limits Operating: 0F - 175F (-22C - 80C);
Storage: -65F - 260F (-54C - 126C)
Pressure Limits (High Side) 1 PSI - 5 PSI: 20 x FS, 10 PSI - 25 PSI: 10 x FS, 50 PSI: 5 x FS, 100 PSI: 2.5 x FS;
(Low Side) 2.5 x FS
Thermal Effects (Includes zero and span) 0.02% FS/F, 30F - 150F (-1C - 65C)
Power Requirements 11 VDC - 30 VDC
Output Signal 4 - 20 mA, 2-wire
Zero and Span Adjustments Adjustable, 1 mA, non-interactive
Response Time 30 ms - 50 ms
Loop Resistance 0 Ω - 1000 Ω
Electrical Connection Barrier strip terminal block with conduit enclosure and 0.875 in (22 mm) diameter conduit opening
Process Connection 1/4 in - 18 female NPT
Housing Stainless steel/aluminum, NEMA 4X (IP56)
Weight 14.4 oz (0.4 kg)
Agency Approvals CE

• Process control
• Filter monitoring
• Refrigeration equipment
• Pump speed control
• HVAC equipment
• Liquid level measurement