Dwyer 616W Differential Pressure Transmitter – NEMA 4X, High-Range

Dwyer 616W Differential Pressure Transmitter – NEMA 4X, High-Range


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Item # 616WHR-DWYER AKA # Array Brand: Dwyer Instruments


NEMA 4X Enclosure, 0.25% FS Accuracy.

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  • Description
  • Additional information


Positive, negative and differential pressures can be measured within a full span accuracy of +/- 0.25 with the 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 display allows local indication of pressure.


  • Electrical Connections: 3-wire removable European style terminal block for 16 to 26 AWG
  • Mounting Style: Any position
  • Temp Rating: 14 – 185 F
  • Process Connections: Barbed, dual size to fit 1/8″ and 3/16″ ID tubing
  • Zero and Span Adjustments: Push buttons
  • Current Consumption: 40 mA max

Applications: Dust collection; Outdoor HVAC; Roof-top equipment.

Additional information

Weight N/A

Dwyer Instruments

Item Type



NEMA 4X (IP66)



Range in w.c.

0-100", 0-20", 0-200", 0-40"

Pressure Rating

15 psig, 20 psig, 45 psig


Within 0.25%

Output signal

4 to 20 mA (2-wire) / 0-5 or 0-10 VDC (3-wire)



616W-4-LCDRange in w.c.: 0-20"Pressure Rating: 20 psig
616W-5-LCDRange in w.c.: 0-40"Pressure Rating: 20 psig
616W-6-LCDRange in w.c.: 0-100"Pressure Rating: 15 psig
616W-7-LCDRange in w.c.: 0-200"Pressure Rating: 45 psig
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