The Bar02 Ultra-High Resolution 10m Depth/Pressure Sensor is a low-pressure, high resolution, high accuracy version of our Bar30 sensor. Using the MS5837-02BA sensor from Measurement Specialties, this device can measure up to 10 meter depth (2 bar absolute pressure) with a water depth resolution of just 0.16mm! It can also measure altitude in air using air pressure with a resolution of 13cm.

One of the key features of this version of the sensor compared to the Bar30 sensor is the very high accuracy. According to the datasheet, the worst case accuracy is about +/- 4 mbar (4 cm water depth).

The sensor communicates over I2C. It operates on 3.3V I2C voltage but can accept power input up to 5.5V. It includes four solder pads for ground, 3.3V-5.5V power, and 3.3V I2C lines.

This sensor includes a temperature sensor accurate to ±2°C, with data also accessible through I2C. If you need something with more temperature accuracy, please check out the Celsius Temperature Sensor.

The electrical schematic and board layout are open-source and the design files are available in the Technical Details tab. Feel free to adapt for your own needs. 








BlueRobotics
Sensors and Sonars
PCB for Bar02 Ultra High Resolution 10m Depth/Pressure Sensor - Marine Thinking
  • SKU: BAR02-SENSOR-PCB-BR

PCB for Bar02 Ultra High Resolution 10m Depth/Pressure Sensor

$78.99
This pressure sensor can measure up to 2 bar absolute pressure (10m depth) with a depth resolution of 0.16mm and an in-air altitude resolution of 13cm. This board-level version can be tightly integrated into projects.

    The Bar02 Ultra-High Resolution 10m Depth/Pressure Sensor is a low-pressure, high resolution, high accuracy version of our Bar30 sensor. Using the MS5837-02BA sensor from Measurement Specialties, this device can measure up to 10 meter depth (2 bar absolute pressure) with a water depth resolution of just 0.16mm! It can also measure altitude in air using air pressure with a resolution of 13cm.

    One of the key features of this version of the sensor compared to the Bar30 sensor is the very high accuracy. According to the datasheet, the worst case accuracy is about +/- 4 mbar (4 cm water depth).

    The sensor communicates over I2C. It operates on 3.3V I2C voltage but can accept power input up to 5.5V. It includes four solder pads for ground, 3.3V-5.5V power, and 3.3V I2C lines.

    This sensor includes a temperature sensor accurate to ±2°C, with data also accessible through I2C. If you need something with more temperature accuracy, please check out the Celsius Temperature Sensor.

    The electrical schematic and board layout are open-source and the design files are available in the Technical Details tab. Feel free to adapt for your own needs. 








     

    Parameter

    Value

    Electrical

    Supply Voltage

    2.5-5.5 volts

    I 2 C Logic Voltage (SDA and SCL)

    2.5 - 3.6 volts

    Peak Current

    1.25 mA

    Pressure

    Maximum Mechanical Pressure

    10 bar

    145 psi

    Standard Operating Pressure

    0.3-1.2 bar

    4-17 psi

    Standard Operating Pressure

    0-2 bar

    29 psi

    Operating Depth

    10m

    33 ft

    Relative Accuracy (-20-85°C)

    +/- 4 mbar (4 cm in freshwater)

    +/- .004 psi (1.5 inches in freshwater)

    Temperature

    Operating Temperature

    -20 to +85°C

    -4 to 185°F

    Storage Temperature

    -40 to +85°C

    -40 to 185°F

    Absolute Accuracy

    +/- 2°C (when used between -20 to +85°C)

    +/- 3.6°F


    Documents

     MS5837-02BA Data Sheet (PDF)

     Bar30/Bar02 Schematic (PDF)



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