Barometric Pressure Sensor (CS100)

Introduction to Sensor

The CS100 is a precision barometric pressure sensor designed to measure pressures from 600 to 1100 hPa (mBar), covering altitudes from below sea level, such as mines, up to 12,000 feet above sea level. Optimized for environmental applications, it is fully compatible with all Campbell Scientific data loggers and can be easily mounted in their enclosures. With low power consumption and robust construction, the CS100 provides reliable pressure measurements for long-term monitoring. Special versions with ranges of 500–1100 hPa or 800–1100 hPa are available upon request.

Specifications

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)