Coriolis Mass Flowmeters

The function of our mass flowmeters is based on the coriolis principle. They allow for a direct measurement of mass flow, density and temperature of liquids. Calculation of volumetric flow and mass or volume concentration is made with a single device. The OPTIMASS picks up the flow quickly and accurately even with quick changes in the medium, such as temperature shifts.


  • Best price-performance ratio
  • High accuracy: 0.2% of actual flow
  • Twin straight measuring tubes with optimized flow divider for minimum pressure loss


  • Temperature range from -200°C to +400°
  • High accuracy: 0.1% of actual flow
  • Twin V-tube design with optimised flow divider for minimum pressure loss


  • For bunkering applications
  • High accuracy: 0.1% of actual flow
  • Twin straight measuring tubes with optimized flow divider for minimum pressure loss
  • Direct measurement of fuel mass flow, density and temperature
  • High accuracy: 0.1% of actual flow
  • Easy installation – patented straight tube designed flow meter
  • Maintenance free, fully welded measuring tubes with no moving parts
  • Twin straight measuring tubes with optimized flow splitter for minimum pressure loss
  • Bi-directional flow measurement – can be used for loading and delivery
  • Multiproduct capabilities – measurement of residual and heavy fuel oil in same pipe

Inert Gas Recorder

Replace old paper chart recorder with new generation of Paperless Recorders, to enable visualization, monitoring and archiving of the data.

Level Measurement

Typical applications are:
▪ Level measurement in Ballast tanks, HFO tanks, water tanks, etc.
▪ Pressure measurement on ballast pumps
▪ Measurement of level and oil / water interface

Explosion Proof Solutions

Mobile computing

  • Tablets
  • Reader
  • Scanner
  • Imager
  • Beacons
  • Remote BT Devices
  • Notebooks
  • PDA
  • Smartphones
  • Digital Cameras


  • Flashlights
  • Handlamps
  • Headlamps

Marine Calibration Temperature and Pressure

  • Temperature -40° to 650°C – specify range
  • Pressure -0,8 to 1000bar – specify range
  • Electrical, current, voltage, ohm etc.
  • Gas detectors
  • Calibration certificate and DNV-GL class approval included

Skids-spools construction

Manufacturing activities according to approved OEM/customer design by Semac Group in our own facilities


Fuel Consumption System (FCS) is a complete fuel monitoring system that comprises 2x positive displacement meters coupled with an flow instrument for accurate measurement of fuel consumption rates and total fuel consumption. The FCS can accurately measure fuel consumption on combustion engines by correcting for temperature differences from the inlet to outlet of the engine.

Oxygen Analyzers

  • Oxygen analyzers for exact.
  • Quick and durable.
  • Combustion control.

High Quality, Reliable Drives certified by nine class authorities

If a vessel doesn’t sail it doesn’t make money. This is why performance, reliability and efficiency are all part of the DNA of a drive from Semac Automation SA. Optimised for years of trouble free operation in marine environments, resistant against electrical interference and suitable for insulated power grids . The drives are built with IP55/IP66 enclosure ratings for durability and performance in 50º C engine room temperature.

Equipment areas of interest in connection with the marine segment are:

  • Marine engines
  • Propulsion
  • Marine air compressors
  • Boilers
  • Fuel treatment
  • Oil seperators
  • Pump systems Incinerators
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