Bar30 High-Resolution 300m Depth/Pressure Sensor - Marine Thinking
Bar30 High-Resolution 300m Depth/Pressure Sensor - Marine Thinking
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Bar30 High-Resolution 300m Depth/Pressure Sensor

Vendor
BlueRobotics
Regular price
$99.39
Sale price
$99.39
Regular price
Sold out
Unit price
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Free shipping in Canada

 

This pressure sensor can measure up to 30 Bar (300m depth) with a depth resolution of 2mm. It is waterproof and ready to install, making it an ideal choice for ROVs, AUVs, remote sensors, and underwater instrumentation.

Compatible with ArduSub on the BlueROV2 and with Arduino and Raspberry Pi devices.

Product Description
The Bar30 pressure sensor is a high-pressure, high-resolution pressure sensor that is sealed from the water and ready to install in a watertight enclosure on your ROV or AUV. With 0.2 mbar resolution, it has an amazing depth measurement resolution of 2mm in the water column!

The sensor is the Measurement Specialties MS5837-30BA, which can measure up to 30 bar (300m/1000ft depth) and communicates over I2C. It operates on 3.3V I2C voltage but can accept power input up to 5.5V. It comes standard with a 4-pin DF13 connector that is compatible with most flight controller boards including the PixHawk and others. The Bar30 sensor is supported by default in ArduPilot and ArduSub so that it can be used on any ArduSub controlled ROV like BlueROV2. We also have guides on how to use the Bar30 with Arduino and Raspberry Pi devices.

This sensor includes a temperature sensor accurate to ±1°C, with data also accessible through I2C. If you need something with more temperature accuracy, please check out the Celsius Temperature Sensor.

The anodized aluminum body was designed around the cable penetrator design and is compatible with all of the watertight enclosures.

We also have a 2 bar version of this sensor that can measure to 10m water depth and a 100 bar version that measures to 1000 m water depth. These sensors have similar design and characteristics and are useful in many applications as well.

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.

The gel-filled sensor must be completely dried once per day or the pressure and temperature readings will drift.

 

Specifications

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
Mating Connector  Hirose 4-pos DF13 available on Digi-Key
Pressure
Maximum Mechanical Pressure 50 bar 725 psi
Operating Pressure 0-30 bar 435 psi
Operating Depth 300m 990 ft
Relative Accuracy (0-45°C) +/- 200 mbar (204 cm in freshwater) +/- 2.9 psi (6.69 ft 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 +/- 1.5°C (when used between 0-60°C) +/- 2.7°F
Physical
Recommended Through Hole Size 10.2 mm 13/32"

 

Contents

  • 1 x Bar30 Pressure Sensor
  • 1 x O-ring
  • 1 x Nut

 

Distributor of Blue Robotics