A non invasive measurement instrument

REDS consists of three components:

  • One sensor (optional 2nd sensor to measure the CAM signal)
  • Acquisition box
  • Access to the measurement data via an intelligent user friendly dashboard

Opzet REDS systeem - nieuw scherm.JPG

From signal to valuable engine information:

This short animation video illustrates how REDS turns a single signal into valuable engine information. 

Please download the REDS brochure here: REDS brochure.pdf


The sensor, placed on the fly wheel, measures the speed of the crankshaft. Within one revolution of the crankshaft deviations are signalized and mapped. The signals of the sensors are transmitted to the acquisition box. The acquisition box converts signals from the sensors into values through calculations of deviations. The highly intelligent software converts the technical data into detailed information about the severity and the location of the deviation. The information is visible online via an intelligent screen with user-friendly interface. Users can access the measured information anytime, anywhere on any device. Real-time and historically.

Further data provided by REDS

Moving Parts Clearance: Indication of the status of the moving parts of the engine, measured per cylinder over multiple revolutions.

Twist: Indication of the amplitude of twist angle of the crankshaft, expressed in degrees.

Stresses / Pulses: Indication about abnormal stress pulses in the crankshaft twist, measured in each operating cycle.

External components Indication of the status of the pump, camshaft or other external components not directly connected to the crankshaft, measured over multiple revolutions.

Ship name and engine location

Ship name and engine location of the monitored engine.


Date and time in UTC of last measurement.


The engine’s rotations per minute (rpm) and the engine status.

Mechanical health

Mechanical Health gives an overall indication of the mechanical wear of the engine, such as too high clearances in moving parts (e.g. cylinders, pistons and bearing) that need repair. This indicator is related to damages, not to the combustion process.

Thermal health

Thermal Health indicates if the power contributions of all cylinders are equal and to what extent. Therefore it is an indicator of how efficiently the engine is running. The Thermal Health is used to make adjustments to the combustion process (injector, pump index, etc.) to make the engine run more efficiently.

Spider chart

Gives a direct overview of the engine balance. The engine’s cylinders are placed in a circle ordered by the moment of firing. When the engine operates in a balanced state all cylinders produce the same amount of power. This results in a symmetric spider chart. When deviations and engine imbalance are detected the spider chart becomes asymmetric, thereby clearly showing which cylinders contribute less power and what might be the cause.

Line chart

Shows the engine’s mechanical, thermal health and rpm over a period of time.