5 Best Pressure Sensors and Transmitters for Marine System Application

Pressure Sensors and Transmitters for Marine System Application

A ship is any watercraft you can sail or dock for transportation or business purposes. It is equipped with a massive control system that regulates everything from the engines to the rudders to the fridge to the marine starting system, the radar, the launchers, and more.

Pressure and level measurement needs vary depending on the application. It is especially true of control systems, marine low- and high-pressure air compressors, underwater equipment, and fire water pipe levels.

Shipbuilding pressure sensors are dependable tools for gauging the internal pressure and volume of storage containers at sea. Typically, they are loaded with water, fuel oil, diesel, or freshwater to act as ballast.

Every pressure transmitter and pressure sensor’s precise readings give the input and output required by systems seeking to maximize productivity, reduce power usage, and pinpoint their exact locations. Furthermore, basic data is provided through pressure measurements to back up the dependability and breakdown rate of the ship systems.

Use of Marine-Based Systems

There are two main types of applications for MicroSensor’s pressure sensors and transmitters in marine systems:

Power system measurements

Ship engines, interior control systems, refrigeration, and desalinization systems are all examples of ship power systems that you can measure.

Assessment of the Water Table

One of the most important features is the ability to monitor the water level of the diving gear in use. Following the measurement and evaluation of the water depth, the crew can carry out further control and related tasks.

Ship-Use Product Pressure Gauges

Using equipment like pressure transmitters in maritime settings comes with its issues. The combination of salty sea air and water is among the most corrosive environments to conduct scientific experiments. In a marine setting, the consequences of a sensor failure are severe for humans and the environment.

Ships and offshore buildings can’t employ pressure transmitters or comparable equipment without receiving DNV-GL certification.

MPM4700 intelligent digital liquid level transmitter 

MPM4700 Intelligent Level Transmitter can send a digital RS485 signal and an analog 4-20mA DC signal, making it ideal for digital communications projects. Besides its excellent precision (often 0.1%FS), other notable features include RoHS certification, an intrinsically safe version, and approval for deployment on marine vessels. Modbus allows remote management, adjustment, and monitoring of process variables via software or communicator.

DNV has certified this model as acceptable for use in explosive atmospheres (EX) thanks to its ex-proof construction and electronics. The MPM4700 liquid level sensor is protected by IP68, meaning it may be submerged underwater for lengthy measurements thanks to the level transmitter’s water-proof and oil-proof wire and fully-sealed stainless-steel structure.

MPM489 ATEX Pressure Transmitter 

The piezoresistive pressure sensor technology provides excellent accuracy, repeatability, and hysteresis. Its sturdy circuit layout made it resistant to electromagnetic interference (EMI) and shielded against sudden high pressure and surge interference from things like thunder, noise, sharp pulses, etc.

A universal pressure transmitter, the MPM489, can be used in various manufacturing settings. A sturdy stainless-steel casing is a piezoresistive sensing element that is both very stable and reliable, as well as a specialized circuit. With its precise measuring capabilities, integrated design, standard outputs, and diverse process and electrical connections, this product is a great fit for automation control applications. Product use is not limited to less-than-ideal settings since it is also suitable for potentially dangerous or extreme conditions.


It can be used in various industrial settings for pressure monitoring and measuring purposes.

The M20 pressure transmitter is designed to work in various manufacturing settings. You can choose between gauge, absolute, and positive/negative pressure. Since it comes with various adapters and settings, you can use it to gauge the density of air, water, oils, or any other fluid compatible with its wetted components.

MDM3051S-DP intelligent pressure transmitter

This type has a high accuracy of 0.075 %FS. It’s commonly used in oil and gas to measure liquid, gas, and steam levels, densities, pressures, and flows. It has a measurement range of 0mbar1mbar…30bar and can send a signal in the 4-20mA and HART formats. The MDM3051S-DP intelligent pressure transmitter has a diaphragm made of Hast-alloy C and stainless steel 316L to prevent corrosion in liquid environments.

The smart differential pressure transmitter is also appropriate for EX zones due to its ex-proof structure and electronics. The MDM3051S-DP is a smart pressure transmitter that allows for remote management, adjustments, and monitoring in addition to a local LCD and configuration through key-press.

MFE600E Intelligent Electromagnetic Flowmeter

The electromagnetic flowmeter has output signals include 4mA20mA DC, HART, and RS485. High precision and reliability are maintained through a water tower of up to 37 meters in height to stabilize pressure during actual flow calibration.

MFE600E flowmeter can be widely used in applications in the oil and gas industry as well as the chemical and metallurgical sectors, the water supply and drainage sector; the steel and coal sectors; the paper and textile sectors; the food and beverage sector; the environmental protection sector; and the water conservancy construction sector, among others.


The pressure sensors and transmitters should be certified by numerous domestic and international marine sectors, including the CCS (China Classification Society) and the DNV (Det Norske Veritas).

There are many satisfied clients and working examples of Micro Sensor’s marine sector applications. In addition, the undersea equipment industry has a long-term bulk source of model projects dating back over 15 years, many of which have received high praise.


In terms of military strategy, the maritime field is crucial. Its technological advancement is also indicative of forward movement. The reliability of ocean sensors is crucial to the advancement of marine equipment technology and the efficiency of marine machinery. Investing in research and development of sensor technologies is key to enhancing ship performance.

Micro Sensor has been conducting studies and designing projects in the marine and deep ocean domains for quite some time. To further the goal of positively impacting the maritime sector, they want to increase their investment in pressure transmitters for ships in the coming years.

Get in Touch

Almost no pressure transmitter manufacturers provide products that can be tested and certified in line with the DNV-GL approval classes for heat, cold, vibration, electromagnetic compatibility, and enclosure. The minimal safety and operating standards for the marine environment are met by ensuring that the pressure transmitter design and the materials used to construct the device meet these requirements.

Pressure sensors and transmitters in the maritime sector require a situation-specific approach. The technical staff will advise you on the optimal product options for your field conditions.

The views expressed in this article are those of the authors and do not necessarily reflect the views or policies of The World Financial Review.