Description
The MAMAC Systems PR-274-R4-MA is a versatile low pressure sensor engineered for demanding HVAC and building automation applications. Featuring six field selectable pressure ranges and a rugged NEMA 4 enclosure, this sensor delivers reliable, accurate pressure measurement in a wide range of commercial and industrial environments.
Field Selectable Pressure Ranges
- 0 to 30″ w.c.
- 0 to 15″ w.c.
- 0 to 7.5″ w.c.
- -15″ to +15″ w.c. (bidirectional)
- -7.5″ to +7.5″ w.c. (bidirectional)
- -3.75″ to +3.75″ w.c. (bidirectional)
Electrical Specifications
- Output Signal: 4–20mA, 2-wire
- Supply Voltage: 12–40Vdc
Enclosure & Construction
- NEMA 4 rated enclosure for protection against splashing water, windblown dust, and rain
- Suitable for indoor and outdoor installations
Key Features & Benefits
- Six field selectable pressure ranges eliminate the need for multiple sensor SKUs on the job
- 4–20mA 2-wire output ensures long-distance signal transmission with minimal noise interference
- Wide supply voltage range (12–40Vdc) for compatibility with a broad range of control systems and BAS platforms
- NEMA 4 enclosure provides durability in harsh or wet environments
- Supports both unidirectional and bidirectional (differential) pressure measurement
- Ideal for duct static pressure, filter differential pressure, and room pressure monitoring applications
Typical Applications
- HVAC duct static pressure monitoring
- Filter differential pressure measurement
- Clean room and laboratory pressure control
- Building automation and energy management systems
- VAV system pressure sensing
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