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FAQ

Any questions? We are pleased to answer them!

Below you will find our answers to frequently asked questions. If you still can’t find what you’re looking for, email us at info@ropesys.com.

General

What means MRT?

MRT stands for “Magnetic Rope Testing”.

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What does LF and LMA mean?

LF means „local fault“

LMA stands for “Loss of Metallic Area”, which means a decrease in the metallic cross-sectional 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 tested?

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.

Can individual wire breaks also be detected during magnetic rope testing?

Yes. The test equipment can reliably detect changes in the metallic rope cross-section from 0.5% cross-sectional area.

Hardware

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

R-series devices are closed, circularly symmetrical devices (Round). The magnets are arranged circularly symmetrically 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.), R-series devices 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 combination with a pneumatic opening and lifting device) are suitable for traversing obstacles such as rope riders and support shoes of ropeways, which makes them ideal for testing suspension ropes.

In which standard sizes are the ROPESYS MRT devices offered?

The ROPESYS MRI 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 testing devices are based on decades of experience of renowned rope experts.

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

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.

How many channels do the ROPESYS rope testers have?

The ROPESYS rope testers output different channels:

  • speed
  • LF Coil channel 1 & 2 (redundant)
  • LMA-channel
  • Hall-channel

How long can I measure with a fully charged battery?

You can work for over 10 hours with a fully charged, like-new battery. We guarantee a full measurement time of over 5 hours. If this is not enough 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 battery.

Is the battery allowed to be transported in the airplane?

The built-in Li-Ion battery is fully approved and has a nominal energy <100 Wh. Thus, it is approved for transportation in the aircraft.

Should you require information or a data sheet on the battery, please contact our service department at info@ropesys.com

Is the battery exchangeable?

Yes, the included battery is replaceable. It can be charged in the tester using the supplied power supply or on an external charging cradle (available as an option).

Do the devices run on sliding guides or rollers?

For a compact design and smooth running, the contact of the tester to the rope is made by means of exchangeable plastic sliding guides. Steplessly adjustable roller carriages are available as an option, which can be adapted to all test equipment.

Can the magnetic rope testers be used for temporary or permanent measurements?

The ROPESYS rope testers are available in two versions:

  • mobile devices for temporary use (“Expert”)
  • permanently installed devices for permanent monitoring of ropes (“SMART”)

What is the minimum equipment 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 matching guiding blocks
1 Measuring wheel
1 Notebook for displaying the measurement and for evaluation

Why are slideways and sensors interchangeable?

Sliding guides and sensors are interchangeable 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 tester itself can take place via virtually any WLAN-capable terminal (cell phone, tablet, notebook…).

How is the rope tester connected to the notebook?

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

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

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

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

For the classic induction coil channels, a minimum speed of 0.3 m/s is required. Thanks to the Hall sensor channels installed as standard, measurement is possible even from the very minimum speed.

Depending on the application, the maximum test speed can be up to 4 m/s.

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

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

Service

I have no experience with ropes or magnetic rope testing. Can you give me some advice?

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 Construction?

We will be pleased to consider your application and design a rope tester to suit your requirements. And that already from quantity 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 must be carried out after 3 years. For this purpose we offer you our calibration service.

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