• Barometric pressure sensors measure fluctuations in the pressure exerted by the atmosphere.
  • The sensors require protection from condensing humidity, precipitation, and water ingress.
  • They are typically housed with the data logger inside an environmental enclosure.
  • If the enclosure is airtight, the sensor's pressure port must be vented to the atmosphere.
  • Optimized to mount in Campbell Scientific enclosures
  • Low power consumption
  • 500 to 1100 hPa (mBar) and 800 to 1100 hPa (mBar) versions also available by special order—contact Campbell Scientific
  • Integral switching circuit limits power consumption to measurement cycle
Measurement Description Barometric pressure
Signal Type/Output Analog voltage
-NOTE- 1 hPa = 1 mBar
Pressure Range 600 to 1100 hPa
Long-Term Stability ±0.1 hPa per year
Response Time < 100 ms
Resolution ±0.01 hPa
Excitation 9.5 to 28 Vdc
Elevation ~609.6 m (2,000 ft) below sea level (as in a mine) to 3,657.6 m (12,000 ft) above sea level
Accuracy
  • Accuracy refers to the root sum squared (RSS) of end point non-linearity, hysteresis, repeatability, and calibration uncertainty.
  • ±0.5 hPa (@ +20°C)
  • ±1.0 hPa (@ 0° to 40°C)
  • ±1.5 hPa (@ -20° to +50°C)
  • ±2.0 hPa (@ -40° to +60°C)
Linearity ±0.4 hPa
Hysteresis ±0.05 hPa
Repeatability ±0.03 hPa
Signal Output 0 to 2.5 Vdc
Warm-up Time < 1 s
External Trigger Voltage
  • 0 Vdc (sleep mode)
  • 3 to 28 Vdc (operating mode)
Current Consumption
  • < 3 mA (active)
  • < 1 µΑ (sleep mode)
Temperature Range -40° to +60°C
Cable Diameter 0.8 cm (0.3 in.)
Cable Length 0.8 m (2.5 ft)
Dimensions 9.1 x 6.1 x 2.5 cm (3.6 x 2.4 x 1.0 in.)
Weight 135 g (4.8 oz)

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