Barometer (BAR-BTA)

Specifications and User Guide

Troubleshooting

• Primary Test: The Barometer measures pressure in a very small range around sea level atmospheric pressure. Make sure that the Barometer is not in a situation where the pressure is greater or lower than the range of the device. (Maximum elevation is approximately 7000 feet.)
• Secondary Test: If the Barometer readings do not compare with the barometric pressure reported by a local airport or television station, then it is because the broadcast pressure is a corrected value. If you want your Barometer to read sea-level pressure (to compare with a weather report), perform a single-point calibration using the reported pressure for your elevation.

Additional Troubleshooting

• Why doesn't my Barometer show the same pressure as the weather report?

Specifications

• Sensing Element: SenSym SDX15A4
• Pressure Range (as shipped): 77.98 kPa to 105.29 kPa
  (~0.77 to 1.04 atm or ~585 to 788 mm Hg)
• Maximum pressure that the sensor can tolerate without permanent damage: 310 kPa
• Typical Resolution: 0.00830 kPa
• Combined Linearity and Hysteresis: ±0.5% full scale
• Response Time: 100 microseconds
• Temperature Range: -25 to 85°C

Calibration

Calibrate? No. Each Barometer is calibrated before shipping, so it should not require calibration. If you wish to calibrate the Barometer so that it matches the weather reports, you can perform a one-point calibration using the reported barometric pressure at your elevation.

Related Products

• Gas Pressure Sensor (GPS-BTA)
• Go Direct^® Gas Pressure Sensor (GDX-GP)
• Go Direct^® Weather System (GDX-WTHR)