SETRA Barometic Pressure Transducer

Setra Systems has been a technology leader in environmental pressure measurement for over three decades. The Model 276 is an extremely accurate and stable transducer based on the proven SetraceramT sensing element. The glass fused ceramic capacitive sensing capsule is the heart of Setra's environmental pressure transducers because of its inherent thermal stability, low hysteresis and fundamentally simple design.

Another major feature of the 276 is Setra's custom Application Specific Integrated Circuit (ASIC). The ASIC works hand-in-hand with the Setraceram sensor to achieve long-term stability and high accuracy, unmatched by other manufacturers – even at much higher cost. The ASIC allows the 276 to operate with an excitation as low as 5 VDC for remote battery or solar powered applications.

The Setra barometer needs to be installed in a sheltered location, such as a Nomad® shelter box or Nomad 2 enclosure. The mounting shelf for the 12V rechargeable battery in the Nomad 2 has a mounting location designed for the Setra barometer. The installation also requires a supplemental battery or solar charging system to supply 12V power.

Model 276 Specifications
Excitation/ Output	12 VDC (9.0 to 14.50) / 0.1 to 5.1 VDC 24 VDC (21.6 to 26.0) / 0.1 to 5.1 VDC 5 VDC (4.9 to 7.1) / 0.5 to 4.5 VDC
Accuracy (RSS Method)	±0.25% Full Scale
Type of Pressure	Barometric Absolute
Pressure Ranges	600 to 1100 hPa/mb 800 to 1100 hPa/mb 0 to 20 psia
Thermal Effects	Compensated Range °F (°C): 30 to 130 (0 to 55) %FS/100°F(100°C)max.zero: ±1.0 (±1.8) %FS/100°F(100°C)max.span: ±1.0 (±1.8)
Media	Non-condensing air or gas compatible with stainless steel, alumina ceramics, gold, and elastomer sealant.