CJMCU-5837 MS5837-02BA01 Water Pressure Sensor Measurement Module I2C, 3-5V, 0 TO 30 Bar
Water Pressure Sensor Measurement Module
Overview
This pressure sensor uses the MS5837-30BA which is a new generation of high resolution pressure sensors with I2C bus interface for depth measurement systems with a water depth resolution of 2 mm. The sensor module includes a high linearity pressure sensor and an ultra-low power 24 bit ΔΣ ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation in depth measurement systems and thermometer function without any additional sensor. The MS5837-30BA can be interfaced to virtually any microcontroller. The communication protocol is simple, without the need of programming internal registers in the device. The gel protection and antimagnetic stainless steel cap make the module water resistant. This new sensor module generation is based on leading MEMS technology and latest benefits from MEAS Switzerland proven experience and know-how in high volume manufacturing, which has been widely used for over a decade.
Features
High-Resolution Depth Tracking: Delivers an RMS resolution of 0.2 mbar, allowing microcontrollers to resolve water depth changes down to 2 mm.
Deep Water Capability: Measures absolute pressure from 0 to 30 bar, enabling deployment at depths up to 300 metres underwater.
24-bit Digital Output: Features an on-board ∆∑ ADC that feeds factory-calibrated, uncompensated 24-bit pressure and temperature data directly over I2C
Ruggedized and Waterproof: Protected by an anti-magnetic stainless steel cap and a specialized dielectric gel fill to shield the internal MEMS elements from water and moisture.
Specifications
Power: 3-5V
Communication: I2C
High-resolution module 0.2 mbar
Fast conversion down to 0.5 ms
Low power, 0.6 µA (standby < 0.1 µA at 25°C)
Operating range: 0 to 30 bar, -20 to +85°C
Operational Notes
Calibration Data: Every individual module contains 6 factory-calibrated coefficients stored inside its internal PROM. Your microcontroller software must pull these coefficients during initialization to accurately calculate compensated temperature and depth values.
Submersion Constraints: While water-resistant, it is highly recommended to design an external mechanical enclosure with an O-ring (typically 1.8mm x 0.8mm) to safeguard the electrical traces on the CJMCU breakout board itself.
Drying Cycles:, Gel-covered pressure sensors should ideally be allowed to dry periodically out of water to prevent long-term saturation drift.
These sensors use gel-covered sensing elements that must be dried for at least 2 hours each day to maintain accuracy. Long-term submersion may damage the sensor.
Additional Information
Device
Sensor Measurement Module
Discover the BDD CJMCU5837 Water Pressure Sensor, your ideal solution for precise water depth measurement up to 300 meters. With its 24-bit digital output and ultra-low power consumption, this rugged and waterproof module ensures reliable performance in any environment. Perfect for microcontroller integration, it delivers accurate pressure and temperature data with ease, making it a must-have for depth tracking applications.
