Dwyer DM-056 DigiMag Differential Pressure Transmitter Range 250 Pa


Dwyer DM-056 DigiMag Differential Pressure Transmitter Range 250 Pa

Senses The Pressure of Air and Compatible Gases, This Differential Pressure Transmitter Features a Pressure Range of 0-250 Pa inWC and Has a 4 to 20 mA output. Fast and Easy to Set up, This Transmitter is Suitable for Fan Control, Static Pressures in ducts or buildings, room Pressurization Monitoring, and Differential Pressure Across Filters.

Dwyer DM-056 Offers

Specifically Designed to Mount in a standard Magnehelic® Gauge cutout, this pressure transmitter features a polycarbonate molded housing with integral pressure connections, reducing installation time. In addition, the digital push-button zero and span simplify calibration over typical turn-potentiometers, and a single push-button allows field selection of multiple engineering units.



  • Reduced installation time through zero and span controls that provides quick and easy calibration
  • Fast and easy setup and calibration with push-button zero and span controls
  • Immediate corrective action can be taken by local alerts via the easy-to-read LCD display
  • Reduces upgrade installation costs and simplifies field upgrade from a Magnehelic® Gauge, as both use the same diameter cutout


  • Differential Pressure Across Filters
  • Fan Control
  • Static Pressures in Ducts or Buildings
  • Room Pressurization Monitoring

Dwyer DM-056 Specifications

Service Air And Non-Combustible, Compatible Gases
Pressure Range 250 Pa
Accuracy ±1% FSO
Stability <±1%/year FSO
Limits Pressure: 3.6 psi maximum operation, 6 psi burst
Temperature: -4 to 158°F (-20 to 70°C)
Thermal Effect 0.02% FS/°F (0.036% FS/°C)
Output Signal 4 to 20 mA (2-wire)
Zero and Span Adjustments Push-button
Loop Resistance 0 to 1250 Ω maximum
Current Consumption 21 mA maximum
Connections Electrical: Screw-type terminals
Process: Male ports on side for ⅛”, 3⁄16″, ¼”, 0.2″ (5 mm), 0.23″ (6 mm) ID flexible tubing
Power Requirements 10 to 35 V DC (2-wire)
Enclosure Rating NEMA 4X (IP66)
Mounting Orientation Not sensitive to position
Agency Approvals CE
Housing Material Polycarbonate
Dimensions Ø5 x 1.9″ (Ø127 x 48.2 mm)
Weight 7.04 oz (200 g)

Click here for complete specifications on the Dwyer DM-056

What’s included with the Dwyer DM-056


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