Dwyer DM-256 DigiMag Differential Pressure Transmitter, ±250 Pa
Dwyer DM-256 DigiMag Differential Pressure Transmitter, ±250 Pa
- Model: DM-256
Senses the pressure of air and compatible gases, this differential pressure transmitter features a pressure range of ±250 Pa 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-256 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.
Features
- 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
Applications
- Differential pressure across filters
- Fan control
- Static pressures in ducts or buildings
- Room pressurization monitoring
Dwyer DM-256 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) |
What’s included with the Dwyer DM-256
- Dwyer DM-256 DigiMag Differential Pressure Transmitter, ±250 Pa
