Dwyer | Mercoid | WE Anderson | Flotect

Dwyer Series 616D

Series 616D Differential Pressure Transmitter

Dwyer Series 616D
Dwyer Series 616D

Mounts on 35 mm DIN Rail, ±0.25% Full Scale Accuracy

The Dwyer Series 616D Differential Pressure Transmitter senses the pressure of air and compatible gases and sends a standard 4-20 mA output signal. The 616D housing is specifically designed to mount on a 35 mm DIN rail in a panel. This mounting style allows for several units to be mounted closely together reducing required space. 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. Versatile circuit design enables operation in 2-wire current loops.


  • Service:Air and non-combustible, compatible gases.
  • Wetted Materials:Consult factory.Accuracy:±0.25% F.S. at 70°F.Stability:±1% F.S./yr.
  • 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:1/8″ female NPT. Accessories included are two barbed fittings for 1/8″ (3.12 mm) and 3/16″ (4.77 mm) I.D. rubber or vinyl tubing.
  • Mounting Orientation:Vertical, on a 1.378″ (35 mm) DIN rail.
  • Weight:4.8 oz (136 g).


616D-10B5-0-5" w.c.5 psigInches of w.c.
616D-20-6" w.c.5 psigInches of w.c.
616D-30-10" w.c.5 psigInches of w.c.
616D-4 0-20" w.c.11 psigInches of w.c.
616D-50-40" w.c.11 psigInches of w.c.
616D-60-100" w.c.29 psigInches of w.c.
616D-6B3-0-3" w.c.5 psigInches of w.c.
616D-7 0-200" w.c.29 psigInches of w.c.
616D-100-30 psid58 psigPSID
616D-110-50 psid150 psigPSID
616D-120-100 psid150 psigPSID
616D-80-10 psid58 psigPSID
616D-90-20 psid58 psigPSID
616D-130-12 ft w.c.29 psigFeet of w.c.
616D-140-20 ft w.c.58 psigFeet of w.c.