Ship and yacht building

 
 

Shipbuilding

Ship position and draught

Level measurements for the control of draught, trim and list

Application

Among the most important measurements on board ships are those for determining draught, trim and list. In general, one measuring point is placed on the bow and another is used in the aft. On larger ships, two additional measuring points are installed on both the port and on the starboard. Accurate level measurements are required to determine the exact values of ship position and draught.

Your benefit

Reliable
Stable ship positioning through precise level measurement
Cost effective
Universal sensor for a variety of level measuring tasks on board
User friendly
Simple installation and maintenance-free operation

Process data

Measuring task:
Level measurement
Measuring point:
Pipe
Measuring range up to:
10 m
Medium:
Water
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Ship approvals, saltwater, submersion of the sensors

Cargo tank

Measurement of level, point level and pressure in the cargo tanks on board

Application

The levels in storage tanks, especially those on board chemical tankers must be continuously measured. This is especially important to monitor during loading and unloading operations, because of strict safety and environmental requirements. Any overfilling or product discharge on deck or into the sea could have devastating consequences for human life as well as the wider environment. Also, to prevent damage to the tanks caused via external temperature fluctuations, or overpressure and underpressure created by charging and discharging procedures, the internal tank pressures require continuous monitoring.

Your benefit

Reliable
Precise measurement regardless of the medium
Cost effective
Multi-sensor flange reduces costs in planning and commissioning
User friendly
Simple installation of the radar, pressure and high level alarm sensors in one multi-sensor flange

Process data

Measuring task:
Level measurement, point level detection, pressure measurement
Measuring point:
Tank
Measuring range up to:
15 m
Medium:
Chemicals, oil, concentrate
Process temperature:
+10 … +60 °C
Process pressure:
0 … +1 bar
Special challenges:
Changing media, aggressive chemicals, tank

Ballast water tanks

Level measurement in the forepeak, wing and double bottom tanks with ballast water

Application

The ballast water measurements in the wing and double bottom tanks go directly into the control system for the ship trim, draught and list. Since these measuring points are virtually inaccessible during operation on board, reliability and stability are an absolute must. Pressure shocks, abrasive sand particles and seawater place additional heavy demands on the instrumentation.

Your benefit

Reliable
Exact level measurement in abrasive and aggressive seawater
Cost effective
Low installation and integration costs
User friendly
Maintenance-free operation due to seawater resistant materials

Process data

Measuring task:
Level measurement
Measuring point:
Forepeak, wing and double bottom tank
Measuring range up to:
15 m
Medium:
Salt/fresh water
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Pressure surges, abrasion, aggressive saltwater, ship approvals

HFO settling and service tank

Level measurement in the settling and service tank in the engine room

Application

To ensure fuel feed to the main engine, heavy fuel oil (HFO) is separated though first being pumped into a settling (buffer) tank. The following service tank or day tank, which is filled via a continuous overflow from the settling tank, directly supplies fuel into the main engine. Heating coils in both of these tanks maintain an even temperature between +75° C and +90° C. A reliable level measurement in these tanks guarantees continuous manoeuvrability of the ships.

Your benefit

Reliable
Maximum safety for humans and the environment
Cost effective
Precise measurement in all the settling and service tanks
User friendly
Maintenance-free and reliable operation

Process data

Measuring task:
Level measurement
Measuring point:
Tank
Measuring range up to:
10 m
Medium:
Heavy fuel oil (HFO)
Process temperature:
+75 … +90°C
Process pressure:
0 … 0 bar
Special challenges:
Temperature, ship approval, aggressive medium, Ex zone

Bilges

Point level detection for bilge and leakage monitoring

Application

Every ship has ‘bilges’ – this is space at the lowest point of the vessel between the floor of the engine room and the bottom of the ship. A water/oil mixture collects in this bilge area, where the mixture is pumped out and recovered and separated into water and oil by an on-board skimmer and demulsifying unit. The bilge de-oiling equipment is normally controlled by level switches. The oil sumps of the main engine and any auxiliary systems must also be monitored continuously for safety and environmental reasons.

Your benefit

Reliable
Maximum safety for humans and the environment
Cost effective
Simple installation
User friendly
Maintenance-free and reliable operation

Process data

Measuring task:
Point level detection
Measuring point:
Bilge, oil pan
Measuring range up to:
Switching point
Medium:
Chemicals, oil, concentrate
Process temperature:
+10 … +75 °C
Process pressure:
0 … 0 bar
Special challenges:
Inaccessible measuring points, ship approvals

Anti-heeling system

Level measurement ad point level detection in the ballast water tanks

Application

Ship heeling caused by high winds, uneven cargo loading or the forces of sharp turns is counteracted by anti-heeling systems. To counter these conditions, ballast tanks are connected to each other by means of pipe systems. Depending on the attitude of the ship, the tanks are either blown out or flooded by means of compressed air blowers or pumps. Reliable level measurement is needed to control this system.

Your benefit

Reliable
Maximum safety for humans and the environment
Cost effective
Reliable measurement of the amount of water in all tanks
User friendly
Simple installation and maintenance-free operation

Process data

Measuring task:
Level measurement and point level detection
Measuring point:
Tank
Measuring range up to:
10 m
Medium:
Water
Process temperature:
0 … +30 °C
Process pressure:
0 … 1 bar
Special challenges:
Pressure surges, fast measurement changes, corrosive seawater, ship approvals

Cargo tank in a bitumen tanker

Level measurement and point level detection in the cargo tanks of a bitumen tanker

Application

Bitumen is transported at temperatures of around 170 °C to 190 °C. The heating is supplied via an array of multi-layered heating tubes mounted on the floor and sides of the tanks. To ensure efficient utilisation of the tanks as well as a safe ship attitude, the levels in the bitumen tanks require accurate monitoring, particularly during loading and unloading.

Your benefit

Reliable
Reliable measurement solution for adhesive media
Cost effective
Accurate measurement of the tank contents, regardless of medium and degree of contamination
 
User friendly
Maintenance-free and reliable operation

Process data

Measuring task:
Level measurement and point level detection
Measuring point:
Tank
Measuring range up to:
15 m
Medium:
Bitumen
Process temperature:
+170 … +190 °C
Process pressure:
0 … 0 bar
Special challenges:
High temperatures, chemically aggressive medium, condensation, highly viscous, heavy buildup, heating pipes at the tank bottom, ship approvals

Cargo tanks on LNG carriers

Pressure, level and point level detection in Liquefied Natural Gas (LNG) applications

Application

Liquefied gas is transported in insulated cargo tanks on LNG carriers at temperatures of -162 °C. The instrumentation used must be specially designed for these extreme temperatures. Pressure, level and point level of LNG in the cargo tanks must be reliably measured for the transport.

Your benefit

Reliable
Reliable and safe measurement in all media
Cost effective
Full utilization of the tank volume
User friendly
Simple planning and commissioning

Process data

Measuring task:
Level and pressure measurement, point level detection
Measuring point:
Tank
Measuring range up to:
40 m
Medium:
Liquefied gas
Process temperature:
-20 … -162 °C
Process pressure:
0 … 5 bar
Special challenges:
Extremely low temperatures, low dielectric constants, low density, different products, ship approvals, Ex zone

Heavy lifter

Pressure and level measurement in the ballast water tanks of heavy lifters (Flo-Flo ship)

Application

Flo-Flo (Float On/Float Off) ships are characterised by their large number of ballast water tanks. These make it possible to lower the ship until the main deck is below the waterline. This allows large floating loads to be loaded. The cargo is lifted out of the water and balanced by pumping out or blowing out the ballast water tanks. To avoid damage to the ballast water tanks from overpressure or underpressure, the internal tank pressures and levels require continuous monitoring.

Your benefit

Reliable
Accurate and reliable level measurement in all ballast tanks
Cost effective
Maximised operational time via maintenance-free measurement technology
User friendly
Simple installation in a service tunnel

Process data

Measuring task:
Pressure and level measurement
Measuring point:
Tank
Measuring range up to:
20 m
Medium:
Water
Process temperature:
0 … +30 °C
Process pressure:
0 … 5 bar
Special challenges:
Ship approvals, saltwater, overpressure, submersion of the sensors

Cavity tanks

Level measurement in cavity service tanks on navy and research vessels

Application

To extend the duration of stay at sea, every cubic centimetre of space on navy and research vessels is utilised. All available spaces and any inaccessible places on the ship are used as additional tanks for drinking water, diesel or aviation fuel. The tank shape and dimensions are completely different from familiar standard tanks. Depending on the type and size of the ship, they can also extend over several decks. A reliable level measurement is indispensable for the operation of these ships.

Your benefit

Reliable
Reliable and accurate measurement, independent of the medium properties
Cost effective
Common sensor type for all applications reduces spare parts stocking
User friendly
Simple, easily accessible mounting from top

Process data

Measuring task:
Level measurement
Measuring point:
Tank
Measuring range up to:
20 m
Medium:
Water, drinking water, diesel, kerosene
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Difficult tank shapes, installation from above or laterally, ship approvals

Crude oil storage tank

Level measurement and point level detection in FPSO crude oil tanks

Application

Crude oil is pumped directly into the cargo tanks on board in order to separate gas, oil and water from each other using gravity. To ensure profitable utilisation of the loading capacities as well as effective control of the pumps, the level is measured continuously and the point levels are monitored.

Your benefit

Reliable
Reliable and accurate measurement of the level
Cost effective
Maximising the loading capacity of the tanks
User friendly
Standard sensors for all tanks allow simple planning

Process data

Measuring task:
Level measurement and point level detection
Measuring point:
Tank
Measuring range up to:
35 m
Medium:
Crude oil
Process temperature:
+10 … +50 °C
Process pressure:
0 … 0 bar
Special challenges:
High ribs on the bottom, on-deck mounting, ship approvals, hazardous area

Manifold

Pressure measurement on the line interface during loading and unloading

Application

Hose connecting stations, also known as manifolds, connect the pipes and hoses that are required for cargo loading and offloading on tankers. To ensure the safety of facilities on shore and on board, and to control the pumps, the pipeline pressures need to be closely monitored on the manifold. Reliable pressure transmitters are required to ensure safe loading or unloading operations.
 

Your benefit

Reliable
Maximum safety for humans and the environment
Cost effective
Low installation costs with simple setup
User friendly
Maintenance-free, robust measurement technology

Process data

Measuring task:
Pressure measurement
Measuring point:
Pipeline
Measuring range up to:
0 … 100 bar
Medium:
Acids, oils, alkalis, concentrates
Process temperature:
0 … +100 °C
Process pressure:
0 … +100 bar
Special challenges:
Ship approvals, widely different media, cleaning, aggressive media, pressure surges, hazardous areas

Service tanks drinking water

Level measurement in tanks with drinking water

Application

Drinking water is an essential commodity on a ship. It is stored separately in dedicated tanks. Depending on the type and size of the ship, different amounts of fresh water are required for drinking, personal hygiene and cleaning. Direct electrical measuring principles are mandatory for level measurement.

Your benefit

Reliable
Reliable water volume measurement
Cost effective
Robust measuring technology ensures long, maintenance-free operation
 
User friendly
Simple installation and setup

Process data

Measuring task:
Level measurement
Measuring point:
Tank
Measuring range up to:
4 m
Medium:
Drinking water
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Suitability for drinking water in the fresh water tank, ship approval

Service tanks with grey and black water

Level measurement in tanks with grey or black water

Application

Waste water, known as grey/black water on ships, is treated on board larger vessels using ship-board clarification plants or it may be stored in special grey/black water tanks to await final disposal. Direct electrical measuring principles are mandatory for level measurement.

Your benefit

Reliable
Reliable measurement of the waste volume
Cost effective
Robust measuring technology ensures long, maintenance-free operation
User friendly
Simple installation and setup

Process data

Measuring task:
Level measurement
Measuring point:
Tank
Measuring range up to:
4 m
Medium:
Grey/black water
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Contamination and buildup in the sewage tank, ship approval

Hydraulic oil reservoir tank

Level measurement in the reservoir tank for hydraulic oil

Application

The hydraulic oil used to transmit power circulates in a closed system. However, it is gradually lost due to lubrication points and leakages in the power equipment. To ensure optimum operation of the power equipment, the level in every hydraulic oil reservoir tank must be monitored for replenishment.

Your benefit

Reliable
Reliable measurement unaffected by medium
Cost effective
Continuous operation of the power equipment is assured
User friendly
Simple installation

Process data

Measuring task:
Level measurement
Measuring point:
Tank
Measuring range up to:
2 m
Medium:
Hydraulic oil
Process temperature:
0 … +50 °C
Process pressure:
0 … 0 bar
Special challenges:
Changing composition of the hydraulic oil

Yacht building

Fresh water and pool water tanks

Level measurement in fresh water and pool water tanks

Application

Every yacht has different tanks on board for storing hot water, pool water and drinking water. For drinking water, an especially hygienic measuring system is required.
 

Your benefit

Reliable
Reliable measurement ensured even in chlorinated water
Cost effective
Accurate detection of water in all tanks
 
User friendly
Simple mounting and maintenance-free operation

Process data

Measuring task:
Level measurement
Measuring point:
Tank
Measuring range up to:
2 m
Medium:
Drinking water, swimming pool water
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Suitability as drinking water, ship certification, resistance to chlorinated water in swimming pool

Fuel tanks

Level measurement and point level detection in fuel tanks

Application

The fuel tanks are some of the most important on board. They store a variety of fuels; diesel for the main engine and power generators, petrol for jet skis and dinghies, even aviation fuel for the helicopter. Level measurement ensures optimum availability of fuel at all times. An additional overfill protection system also ensures maximum safety for the environment.
 

Your benefit

Reliable
Maximum safety for humans and the environment
Cost effective
Precise measurement in all fuel tanks
User friendly
Maintenance-free, reliable operation

Process data

Measuring task:
Level measurement and point level detection
Measuring point:
Tank
Measuring range up to:
5 m
Medium:
Fuel (diesel / petrol)
Process temperature:
0 … +40 °C
Process pressure:
0 … 0 bar
Special challenges:
Geometry of the tank

Bilges

Point level detection for bilge and leakage monitoring

Application

Every ship has ‘bilges’ – this is space at the lowest point of the vessel between the floor of the engine room and the bottom of the ship. A water/oil mixture collects in this bilge area, where the mixture is pumped out and recovered and separated into water and oil by an on-board skimmer and demulsifying unit. The bilge de-oiling equipment is normally controlled by level switches. The oil sumps of the main engine and any auxiliary systems must also be monitored continuously for safety and environmental reasons.
 

Your benefit

Reliable
Maximum safety for humans and the environment
Cost effective
Simple installation
User friendly
Maintenance-free and reliable operation

Process data

Measuring task:
Point level detection
Measuring point:
Bilge, oil pan
Measuring range up to:
Switching point
Medium:
Oil/oil-water mixture
Process temperature:
+10 … +75 °C
Process pressure:
0 … 0 bar
Special challenges:
Inaccessible measuring points, ship approvals

Grey water and black water tanks

Level measurement and point level detection in grey and black water tanks

Application

Wastewater accumulated on board is stored in grey or black water tanks up until its final disposal on land. The tanks are equipped with continuous level monitoring as well as point level detection to avoid overfilling.

Your benefit

Reliable
Precise level measurement in abrasive and adhesive media
Cost effective
Low installation and integration costs
 
User friendly
Maintenance-free operation

Process data

Measuring task:
Level measurement and point level detection
Measuring point:
Tank
Measuring range up to:
3 m
Medium:
Grey/black water
Process temperature:
0 … +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Different types of solid materials in the medium

Beer tank

Application

During the brewing process, a thick layer of foam is always present in the beer tanks. Therefore usually two pressure transmitters are used for level measurement. One transmitter measures the head pressure, while the other at the bottom measures the total pressure. The level is precisely calculated from the differential between these two pressures. Hygienic process fittings are absolutely necessary for these sensors.

Your benefit

Reliable Certified materials according to FDA and EC 1935/2004 regulations Cost effective plics® concept: short delivery time and standardized operation User friendly One measuring system, three measured values: level, pressure, temperature