Measurement and Control Solutions for the Shipbuilding Industry

JUMO offers comprehensive measurement and control solutions for the shipbuilding industry, covering six key application areas: heating and cooling systems, engines, separators, oil and gas storage tanks, water and wastewater treatment, and ballast water management systems. **Heating and Cooling Systems** Heat exchangers are technical devices that transfer heat from one medium to another. Water is typically used as the medium, though other liquids or even solids may be employed. Their primary function is to maintain thermal balance during ventilation or refrigeration processes and to recycle heat between engines and exhaust gases. Some models mix two different liquids, while others feature partition grids to prevent mixing. Wall-mounted finned heat exchangers increase surface area for heat exchange while reducing flow resistance. Efficiency is optimized by maximizing the heat exchange surface and minimizing fluid flow resistance; JUMO temperature and pressure sensors monitor and control this process effectively. **Engines** Ship engines and compressors can generate extreme loads and temperatures during operation, requiring real-time monitoring of mechanical components to prevent damage. JUMO's reliable measurement technology ensures precise monitoring of temperature and pressure within these systems. Engine rooms in diesel-powered vessels house multiple engines with specific functions. The main propulsion engine drives the propeller to move the vessel through water, typically running on diesel, heavy fuel oil, or a combination of both. Propulsion systems also include multi-engine setups, propellers, and gearboxes. The robust JUMO VIBROtemp screwed-in RTD provides precise temperature readings for engines, lubricants, and control systems. Air or gas compression falls into two categories: positive displacement and dynamic compression. Positive displacement compressors include reciprocating (piston), scroll, and various rotary types (screw, rolling piston, vane). Temperature and pressure parameters are critical for compressor operation. The JUMO Pt100 temperature sensor ensures safe operation by detecting overheating or overcooling and signaling the control system if issues arise. The JUMO MIDAS pressure transmitter series is ideal for pressure control systems; its sensing element acts like a diaphragm, converting mechanical signals into 4~20mA or 0~5V electrical signals. **Separators** Separators are vital components of high-efficiency heavy fuel oil purification systems on ships. Untreated fuel is heated to an optimal temperature in the separator, causing impurities to settle. A centrifuge then extracts pure oil, while sludge and water accumulate at the periphery. At the clean oil outlet, a water sensor detects changes in water flow resistance and sends signals to the control unit. During discharge, the control unit opens drainage valves or directs water through outlets to flush out sediment based on sludge content. **Oil and Gas Storage Tanks** Natural gas can be liquefied at low temperatures and approximately 10 bar pressure. Due to these conditions, tank materials are made of special stainless steel and are isolated from the ship's hull. Spherical tanks are typically positioned mid-deck to facilitate transport. Since liquefaction depends heavily on internal pressure, real-time monitoring is essential. To measure pressure in extremely cold media, the medium must first be heated to its boiling point of approximately -40°C before reaching the pressure transmitter. The JUMO dTRANS p20 is designed to handle this demanding task. **Water and Wastewater Treatment** Freshwater is indispensable on board. Ships obtain it either through pre-storage or water treatment processes, sometimes extracting it from seawater. JUMO pH, conductivity, pressure, and level sensors support water treatment processes, ensuring consistent water quality. In seawater desalination plants, the core component is the Reverse Osmosis (RO) membrane. During RO, seawater is pushed under high pressure through a semi-permeable membrane that allows only specific ions and molecules to pass. Due to high salinity, pressures ranging from 60 bar to 80 bar are required. Monitoring pressure prior to the RO stage is critical for safety. The JUMO MIDAS C18 SW pressure transmitter is suitable for this application. Wastewater management varies by vessel size, involving either onboard storage followed by discharge via reception facilities at port, or direct processing using membranes or biological technologies. Both methods require level measurement equipment to prevent overflow. pH and conductivity sensors detect water quality before and after treatment. Throughout the water and wastewater process, JUMO devices perform all necessary tasks: measurement, control, recording, and display. The solution utilizes the JUMO digiLine intelligent bus system for digital sensors. This data bus connects water analysis digital sensors and includes connectors and display units. digiLine simplifies the creation of star and tree network topologies using a single shared signal line for communication with controllers or other devices. This approach enables simultaneous multi-parameter measurement at various locations and streamlines wiring. Connection Option 1: The multi-channel measurement device AQUIS touch series is specifically designed for water analysis. It serves as a platform for displaying and further processing measurement data. Up to 6 digital sensors can connect to the device module, and with interface and input modules, up to 25 sensors can be utilized. Additionally, four independent control loops can be executed. Measured values are recorded on paperless recorders with tamper-proof functionality. Connection Option 2: digiLine sensors can also connect to general-purpose measurement, control, and automation systems like the JUMO mTRON T, allowing integration into full automation schemes or independent operation. Compact PLCs typically integrate up to 62 digital sensors. The digiLine system measures multiple parameters including pH, temperature, oxidation-reduction potential, conductivity, dissolved oxygen, turbidity, and disinfectant levels. It is ideal for process applications in food, pharmaceutical, and water treatment industries. Features include secure digital transmission for process monitoring, modular design for independent measurement and network building, AQUIS touch transmitters supporting quick connections and touchscreen operation for easy replacement and calibration, continued converter availability even if a sensor fails, and convenient point management via PC or JUMO DSM software. **Ballast Water Management** After discharging wastewater or unloading cargo, yachts, large tankers, and bulk carriers often take on significant amounts of water for ballast, sourced from coastal waters. However, this ballast water is discharged at subsequent ports where cargo loading occurs. Ballast water contains animals, viruses, and microorganisms, including non-native invasive species that can disrupt aquatic ecosystems and cause economic losses. Ballast water discharge has been confirmed as a vector for invasive species in U.S. waters, leading to public health risks, environmental pollution, and economic damage to industries such as fisheries, agriculture, and tourism. JUMO provides reliable measurement assurance for ballast water treatment. Tank management can utilize JUMO level and temperature sensors for comprehensive control and monitoring, suitable for all vessel types and offshore installation. The JUMO MIDAS C18 SW pressure transmitter monitors levels on tankers, bulk carriers, passenger ships, supply vessels, and offshore drilling platforms. Control systems like the JUMO mTRON monitor independent parameters (level, pressure, temperature, flow) or trigger alarms. These systems control valves, pumps, actuators, motors, and other equipment. User interfaces can be customized for any application. JUMO also offers conductivity and residual chlorine sensors for measuring ballast water quality. **HVAC Systems** Heating, Ventilation, and Air Conditioning (HVAC), also known as climate control systems, are fundamental to ship operations, ensuring indoor comfort. HVAC systems adjust temperature, humidity, and airflow to keep conditions within acceptable human limits. JUMO high-quality measurement equipment supports these applications. Heating is crucial for maintaining appropriate temperatures, especially in cold weather. Options include local heating and central heating, with the latter being more common due to cost-effectiveness. Heating systems generally consist of furnaces or boilers, heat pumps, and radiators. Ventilation manages air circulation to remove carbon dioxide and supply oxygen, ensuring breathable air. Stagnant air can spread diseases (via airborne pathogens) and trigger allergies, making continuous air circulation essential, particularly in ship attics. Poor ventilation increases humidity, promoting bacterial and fungal growth (e.g., mold). Air conditioning controls indoor temperature and ventilation equally important. It can be implemented via separate subsystems or centralized remote control. Regardless of the method, ventilation ducts must be regularly cleaned to prevent pathogen buildup from accumulated dirt. Recirculated air is also susceptible to contamination from chemicals, microorganisms, and radiation. **Services and Support** Our services cover manufacturing, documentation and training, product services, and maintenance and calibration. *Manufacturing Services:* We offer customized sensor technologies tailored to client needs, including RTDs, pressure transmitters, conductivity electrodes, pH, and redox electrodes. Our capabilities extend to electronic modules and metalworking, featuring stamping, soft metal sheet fabrication, float glass production, welding and assembly, surface finishing, tool manufacturing, and premium material management. We provide end-to-end service from R&D and testing (using extensive equipment and combining expertise with practical application) to material management, production, logistics, and after-sales support. *Documentation and Training:* Access seminars, online learning videos on measurement and control technologies, technical literature for beginners and professionals, and downloads for the latest software and technical documents via the JUMO website. *Product Services:* With global distribution channels, we provide consulting, product selection guidance, and engineering optimization advice. Our hotline offers rapid responses, and we provide fast repairs along with 24-hour spare parts service. *Maintenance and Calibration:* Maintenance services ensure equipment and facilities operate smoothly, preventing breakdowns and downtime. We collaborate on future-oriented maintenance concepts and draft necessary reports, documents, and agreements. Calibration services are available on-site or at DAkkS-accredited laboratories, with test results documented on certificates according to EN 10204 standards. **About JUMO** Founded in 1948, JUMO Group is a global manufacturer of industrial sensors and automation technology. As a German family-owned enterprise, we employ over 2500 people worldwide across 14 production sites and 25 branch offices. Our portfolio includes sensors for temperature, pressure, flow, level, humidity, and water quality analysis, alongside comprehensive automation solutions. In 1997, JUMO established a wholly-owned subsidiary in Dalian, China: JUMO Automation (Dalian) Co., Ltd., featuring sales, production operations, product management, customer service, and quality departments. We also maintain sales offices in Beijing, Shanghai, Guangzhou, Qingdao, and Chengdu. On 2015 10 15, we celebrated the opening of our Asia-Pacific headquarters in Dalian. The JUMO China factory, serving as the manufacturing center for temperature sensors, houses a CNAS-certified laboratory and a municipal-level R&D center, holding high-tech enterprise qualifications. We have achieved ISO 9001:2015 Quality Management System certification, ISO 14001:2015 Environmental Management System certification, ISO 45001:2018 Occupational Health and Safety Management System certification, ISO/IEC 17025:2017 (CNAS) Test Laboratory accreditation, High-Tech Enterprise Certification, and MID European Metrology Instrument Regulation certification. Our products serve diverse industries including environmental protection and energy saving, clean energy, HVAC, food machinery, pharmaceutical machinery, petrochemicals, power generation, and rail transit.

Use Cases:Suitable for bulk carriers, tankers, passenger ships, supply vessels, yachts, offshore drilling platforms, and shipyards. Includes engine room heating and cooling systems, main engine and compressor monitoring, heavy fuel oil separators, LNG spherical tanks, seawater desalination and wastewater treatment, ballast water management systems, and marine HVAC systems.