Dwyer Series 616W

Series 616W Differential Pressure Transmitter

NEMA 4X Enclosure, 0.25% FS Accuracy

Positive, negative and differential pressures can be measured within a full span accuracy of ±0.25 with the Dwyer Series 616W Differential Pressure Transmitter. Units are enclosed in a polycarbonate case, rated NEMA 4X (IP66) and operate by sensing the pressure of air and compatible gases then sending a standard 4-20 mA output signal.

Design enables operation in 2-wire current loops. A wide range of models are available factory calibrated to specific ranges. The span and zero controls are for use when checking calibration. They are not intended for re-ranging to a significantly different span. The LCD (as shown to the left) allows local indication of pressure.

Specifications

• Service:Air and non-combustible, compatible gases.
• Wetted Materials:Consult factory.
• Accuracy:±0.25% F.S., display accuracy ±0.5%.Stability:±1% F.S./yr.
• Temperature Limits:0 to 140°F (-17.8 to 60°C).
• Compensated Temperature Limits:20 to 120°F (-6.67 to 48.9°C).
• Pressure Limits:See Ordering page.
• Thermal Effect:±0.02% F.S./°F (0.0012% F.S./°C).
• Power Requirements:10-35 VDC (2-wire).
• Output Signal:4 to 20 mA.
• Zero and Span Adjustments: Potentiometers for zero and span.
• Loop Resistance:DC; 0-1250 ohms maximum.
• Current Consumption:DC; 38 mA maximum.
• Electrical Connections:Screw-type terminal block.
• Process Connections:Barbed, dual size to fit 1/8″ and 3/16″ (3.12 mm and 4.76 mm) I.D. rubber or vinyl tubing.
• Enclosure Rating: NEMA 4X.
• Mounting Orientation:Vertical, consult factory for other position orientations.
• Weight:Without LCD 8.8 oz (249 g); with LCD 9.6 oz (272 g).
• Agency Approvals:CE.