PCB for Bar30 High-Resolution 300m Depth/Pressure Sensor

PCB for Bar30 High-Resolution 300m Depth/Pressure Sensor

£49.99
This pressure sensor can measure up to 30 Bar (300m depth) with a depth resolution of 2mm. This board-level version can be tightly integrated into projects.
£49.99

Product Description

The Bar30 pressure sensor is a high-pressure, high-resolution pressure sensor. With 0.2 bar resolution, it has an amazing depth measurement resolution of 2mm in the water column! It can also be use in air to measure altitude.

The sensor is the Measurement Specialties MS5837-30BA, which can measure up to 30 bar (300m depth) and 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 ±1°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 below. Feel free to adapt for your own needs.

Technical Specifications

ParameterValue
Electrical
Supply Voltage2.5-5.5 volts
I 2 C Logic Voltage (SDA and SCL)2.5 - 3.6 volts
Peak Current1.25 mA
Pressure
Maximum Mechanical Pressure50 bar725 psi
Operating Pressure0-30 bar435 psi
Operating Depth300m990 ft
Absolute Accuracy (0-40°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

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