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Below you will find our answers to frequently asked questions. If you still can’t find what you are looking for, please email us at


What does MRT stand for

MRT stands for “Magnetic Rope Testing”, THE non destructive rope testing method (NDT)

What does LF and LMA mean?

LF means “Local Defects

LMA stands for “Loss of Metallic Area”.

While the LF measurement represents a relative measurement, the LMA channel represents an absolute measurement. Both channel types are important for the statement about the rope condition and complement each other with their respective strengths. All ROPESYS sensors have all channels as standard.


What kind of ropes can be magnetically inspected?

In principle, all types of steel wire ropes can be tested using the magnetic method.

Can all wires of the rope, i.e. also inside, be tested?

Yes. Due to the high magnetization (>1.9T), all wires of the rope are fully tested.

Können bei der magnetischen Seilprüfung auch einzelne Drahtbrüche erkannt werden?

Ja. Die Prüfgeräte können Veränderungen im metallischen Seilquerschnitt ab 0,5% Querschnittsanteil sicher detektieren.


What is the difference between devices of the R and U series?

Devices of the R-series are closed, circularly symmetrical devices (Round). The magnets are arranged circularly symmetrical around the rope, which results in a very homogeneous magnetization and minimal external magnetic forces. For most applications (hoisting ropes, conveyor ropes, ziplines, hauling ropes etc.) devices of the R-series are ideally suited.


U-series devices, on the other hand, have a U-shaped design that is open on one side. Thus, these devices (often in conjunction with a pneumatic opening and lifting device) are suitable for traversing obstacles such as rope riders and support shoes of cable cars, which is why they are ideally suited for testing suspension ropes.

In which standard sizes are the ROPESYS MRT devices offered?

The ROPESYS MRT devices are offered in three standard sizes:

  • Size 28 for ropes from   6 – 28 mm rope diameter
  • Size 58 for ropes from 18 – 58 mm rope diameter
  • Size 83 for ropes from 38 – 83 mm rope diameter

What makes the ROPESYS rope testers so unique?

ROPESYS rope inspection devices are based on decades of experience of renowned rope inspectors.

In addition to classic induction coils, a large number of magnetic field sensors are arranged around the rope circumference, enabling three-dimensional localization of damage. Among other things, this can provide information about the location of the defect in the rope cross-section.

How many channels have the ROPESYS rope inspection devices?

The ROPESYS rope testers output different channels:

  • Speed
  • LF coil channel 1 & 2 (redundant)
  • LMA channel
  • Hall channel (up to 64 separate) channels, individually readable, display in 3D heat map)
How long can I measure with a fully charged battery?

You can work for over 10 hours with a fully charged, as-new battery. We guarantee a full measuring time of over 5 hours. If this is not sufficient for you, you have several options:

  1. Charge the battery during the measurement in the instrument using the supplied power supply unit.
  2. Continue to operate the tester with the power supply unit.
  3. Change the battery.
May the battery be transported in the aircraft?

The built-in Li-ion battery is fully approved and has a nominal energy <100 Wh. It is therefore approved for transport in aircraft (also in hand-luggage).

Should you require information or a data sheet on the battery, please contact our service department at

Can the battery be changed?

Yes, the supplied rechargeable battery can be changed. It can be charged both in the tester using the supplied power supply unit and on an external charging cradle (optionally available).

Do the devices run on guiding blocks or rollers?

For a compact design and smooth running, the contact of the testing device to the rope is made by means of exchangeable plastic guiding blocks. Steplessly adjustable roller trolleys are available as an option, which can be adapted to all testing devices.

Sind die magnetischen Seilprüfgeräte für temporäre oder permanente Messungen einsetzbar?

Die ROPESYS Seilprüfgeräte sind in zwei Varianten verfügbar:

  • mobile Geräte für den temporären Einsatz (“Expert”)
  • permanent installierte Geräte zur permanenten Überwachung von Seilen (“SMART”)
What is the minimum configuration for a test system?

The following components are required as minimum equipment:

  • 1 rope tester (R28 / R58 / R83 / U28 / U58 / U83)
  • 1 pair of sensors
  • 1 pair of suitable guide jaws
  • 1 measuring wheel
  • 1 notebook for displaying the measurement and for evaluation
Why are guide rails and sensors exchangeable?

Guide rails and sensors are exchangeable to ensure optimum centering of the tester around the rope. Basically, the closer the sensor to the rope, the better the signal quality

Software & Electronics

Where can I start and view the live measurement?

Communication with the inspection device itself can take place via nearly any Wi-Fi enabled device (cell phone, tablet, notebook…).

How is the rope inspection device connected to the notebook?

The connection between notebook and rope tester is realized via a local WiFi connection, which is established automatically.

What happens if the WiFi connection is interrupted during the measurement?

In this case, the measurement continues without restrictions and all measurement data is recorded in full. The associated tablet / notebook serves only as a display device, the measurement data recording takes place in the instrument itself.

Is there a minimum speed required? What is the maximum speed?

For the classic induction coil channels, a minimum speed of 0.3 m/s (60ft/min) is required. Thanks to the Hall sensor channels integrated as standard, measurement is already possible from the minimum speed.

Depending on the application, the maximum test speed of an Expert device can be up to 4 m/s. Contact-free installed Smart devices can run up to 10 m/s and more.

At the moment I need guides and sensors for only one rope diameter. Can I add more sizes later?

Yes. In principle, sensors can be replaced or added at any time.


I have no experience with ropes or magnetic rope testing. Can you advise me to the side?

Our experienced experts will be happy to support you in building up knowledge on the subject of rope & rope testing.

In my special application no standard tester fits. Is there a possibility to get a customized special design?

We will gladly take care of your application and design a rope tester to suit your requirements. And that already from a quantity of 1.

Are the rope testers calibrated?

All our rope testers are calibrated according to EN 12927 and are only delivered fully calibrated with certificate. According to EN 12927 a new calibration has to be carried out after 3 years. For this purpose we offer you our calibration service.


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