The MAMAC Systems PR-275-R3-MA is a versatile, field-configurable low differential pressure sensor engineered for demanding HVAC building automation and air monitoring applications. Featuring six field selectable pressure ranges and a reliable 4-20mA two-wire output signal, this sensor delivers accurate, repeatable performance in a rugged panel mount chassis.
Field Selectable Pressure Ranges
- 0 to 5″ w.c.
- 0 to 2.5″ w.c.
- 0 to 1.25″ w.c.
- -2.5″ to +2.5″ w.c. (bidirectional)
- -1.25″ to +1.25″ w.c. (bidirectional)
- -0.625″ to +0.625″ w.c. (bidirectional)
Electrical Specifications
- Output Signal: 4-20mA, 2-wire
- Supply Voltage: 12–40 Vdc
Mounting & Enclosure
- Panel Mount Chassis for secure, professional installation
- Compact design suitable for control panels and BAS enclosures
Key Features & Benefits
- Six field selectable pressure ranges eliminate the need for multiple sensor SKUs on the job
- 4-20mA 2-wire output provides noise-immune signal transmission over long cable runs
- Wide 12–40 Vdc supply voltage range ensures compatibility with a broad range of control systems and power supplies
- Bidirectional range options support both positive and negative differential pressure measurement
- Panel mount chassis allows clean, organized integration into existing control enclosures
- Ideal for duct static pressure, filter differential pressure, and room pressure monitoring in commercial HVAC systems
Typical Applications
- Duct static pressure monitoring
- Filter differential pressure measurement
- Clean room and critical environment pressure control
- VAV system pressure sensing
- Building automation and DDC systems
