- Ship automation
- Monitoring of hydraulic power packs on cranes
Monitoring of hydraulic power packs on cranes
Usually, hydraulic drive systems are used to lift heavy loads and operate knuckle boom cranes and telescopic booms. A hydraulic power pack is the heart of a hydraulic system and provides energy for the operation of hydraulic cylinders: the most important drive elements in hydraulics.

ifm sensors ensure reliable, uninterrupted low maintenance operation of the hydraulic system.
Level sensors are used to continuously monitor the level in the reservoir and make an important contribution to environmental protection by guaranteeing reliable overflow protection.
Pressure sensors monitor the system pressure. Temperature sensors monitor the temperature of the hydraulic oil.
IO-Link modules collect the sensor signals on the hydraulic power pack and transmit them to a controller. This reduces wiring costs and makes complex cable trees obsolete.
Solutions
Pressure, level and temperature under control
Pressure transmitters of type PT with DNV Approval supply data on the system pressure in the hydraulic circuit needed to control the valves. Temperature transmitter of type TA with DNV Approval measure the hydraulic oil temperature and guarantee a high precision across the entire temperature measurement range.
A level sensor of type LMC with DNV approval protects pumps against run dry by early detection of low level.
Oil quality monitoring
The contamination as well as the water concentration are indicators for the oil quality and gives the operator the opportunity for an oil change at the right time to prevent damages and repair costs on the hydraulic system.
The oil particle sensor LDP monitors the degree of cleanliness - or the level of contamination - in hydraulic oils.
Water is generally not wanted in hydraulic liquids and lubricants. High concentrations of water can seriously affect operation or even cause damage.
The oil humidity sensor LDH measures the relative moisture in the hydraulic oil.