Description

Series 616WL Differential Pressure Transmitter

Low Ranges Down to 0.25″ w.c. (60 Pa), NEMA 4X Housing

 

The DWYER Series 616WL Differential Pressure Transmitter senses very low pressures of air and non-combustible, compatible gases and sends a standard 4-20 mA output signal. All models, including those featuring the 3 digit LCD digital read-out, are factory calibrated to specific ranges as listed in the chart below.Positive, negative and differential pressures can be measured within a full span accuracy of ±0.50%. This DWYER Series 616WL Differential Pressure Transmitter weatherproof unit is enclosed in a polycarbonate case, designed to meet (IP66/NEMA 4X). Internal digital push button zero and span allow for quick and simple field calibration.

 

Features

• NEMA 4X rated enclosure provides protection in harsh environments permitting outdoor monitoring or in areas where dust and particulate matter exists
• Easy to read LCD display provides immediate local alerts allowing corrective action to be taken quicker to eliminate the problem from becoming widespread
• Zero and span controls provides easy calibration checks and shorter installation time to get device running and monitoring
• High precision accuracy at low pressure ranges provides exceptional accuracy for insuring tight-control and minimizing costly out of specification conditions

 

Specifications

• Service: Air and non-combustible, compatible gases.
• Wetted Materials: Consult factory.
• Accuracy: ±0.50% 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 Catalog page.
• Thermal Effect: ±0.02% F.S./°F (0.036% F.S./°C).
• Power Requirements: 12 to 30 VDC (2-wire).
• Output Signal: 4 to 20 mA.
• Zero and Span Adjustments: Digital, Push Button Adj.
• Loop Resistance: DC; 0 to 900 Ω 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 and 4.76 mm) I.D. rubber or vinyl tubing.
• Enclosure Rating: NEMA 4X (IP66).
• Mounting Orientation: Vertical, consult factory for other position orientations.
• Weight: Without LCD 17 oz (482 g); with LCD 18 oz (510 g).
• Agency Approvals: CE.

 

Models & Ordering

With LCD

Model	Description
616WL-12-LCD	Differential pressure transmitter, range 0.25-0-0.25″ w.c., NEMA 4X housing, with LCD display.
616WL-14-LCD	Differential pressure transmitter, range 1-0-1″ w.c., NEMA 4X housing, with LCD display.
616WL-2-LCD	Differential pressure transmitter, range 0-.25″ w.c., NEMA 4X housing, with LCD display.
616WL-22-LCD	Differential pressure transmitter, range 0-60 Pa, NEMA 4X housing, with LCD display.
616WL-25-LCD	Differential pressure transmitter, range 0-250 Pa, NEMA 4X housing, with LCD display.
616WL-32-LCD	Differential pressure transmitter, range 60-0-60 Pa, NEMA 4X housing, with LCD display.
616WL-35-LCD	Differential pressure transmitter, range 250-0-250 Pa, NEMA 4X housing, with LCD display.
616WL-4-LCD	Differential pressure transmitter, range 0-1″ w.c., NEMA 4X housing, with LCD display.

 

Without LCD

Model	Description
616WL-12	Differential pressure transmitter, range .25-0-.25″ w.c., with NEMA 4X housing.
616WL-14	Differential pressure transmitter, range 1-0-1″ w.c., with NEMA 4X housing.
616WL-2	Differential pressure transmitter, range 0-.25″ w.c., with NEMA 4X housing.
616WL-22	Differential pressure transmitter, range 0-60 Pa, with NEMA 4X housing.
616WL-25	Differential pressure transmitter, range 0-250 Pa, with NEMA 4X housing.
616WL-32	Differential pressure transmitter, range 60-0-60 Pa, NEMA 4X housing
616WL-35	Differential pressure transmitter, range 250-0-250 Pa, with NEMA 4X housing.
616WL-4	Differential pressure transmitter, range 0-1″ w.c., with NEMA 4X housing.