USB-BAR20-CAL-C

Product Description

 

USB Precision barometer – calibratable – adjusted and certified at 3 points in atmospheric pressure (at 80, 101 and 120 kPa) by an ISO17025 accredited laboratory

This USB-connected barometer allows for precise measurement of atmospheric pressure (1 kPa to 120 kPa) and altitude. Thanks to the use of a high-resolution ADC 24 bit, very small changes in atmospheric pressure can be sensed and sent to a computer over USB. If used to compute altitude, variations as small as 10 cm can be detected. Designed as a compact USB-Key form factor for easy integration even in space-constrained applications.

Specifications

Atmospheric pressure

  • Range: 1 to 120 kPa (10 to 1200 mbar)
  • Accuracy: ±0.15 kPa at 25°C (1.5 mbar)
  • Resolution: 0.0065 kPa (0.065 mbar)
  • Internal factory calibrated coefficients
  • ADC resolution: 24 bits
  • Altitude resolution: approx. 10 cm
  • Sensor IC: MS5611

Internal temperature

  • Operating range: -40°C to 85°C[1]
  • Accuracy: ±0.8°C
  • Difference int. vs ext.: +3°C at 25°C (typical)
  • Résolution: <0.01°C (typical)

Miscellaneous

  • Operating temperature range: -20°C to +70°C
  • Powered through USB
  • Communication: USB 2.0
  • Enclosure: ABS Plastic, USB-key form factor
  • Weight: 6 g
  • Étanchéité: IP60
  • Overall dimension: H 2.295″ (58 mm) X W 0.759″ (19 mm) X D 0.425″ (11 mm)

 

Dracal BAR20 – Datasheet