The RTM can be used in applications where accurate measurement in preloaded wire ropes is required. Such applications can be stay ropes, suspension ropes, catenary ropes, etc. The RTM is applied direct to the rope and the measured tension value is presented digitally.

Range of Application Function Safety Technical Data

The RTM (Rope Tension Meter) was designed to swiftly and accurately measure the tension in fixed or stationary ropes or cables, i.e., guy wires for masts and/or towers or other guyed constructions.

The RTM will also be very useful in determining the tension in overhead suspension ropes for railways catenarys.

The RTM can be used to measure tension forces up to 44000 lb. (20 metric tons) and for wire rope with a diameter of up to 1-33/64″ (38 mm).

Thanks to the use of microprocessor technology the RTM can be calibrated on up to 10 different wire rope dimensions/types. The digital readout display will clearly show the tension of the wire rope selected. No calibration tables are required.


The RTM is very simple and handy to use. Simply hold and “clip” it to the rope to be tested and use the large hand screw to deflect the rope to a fixed angle.

The resultant force will then affect the load cell and measure the tension in the wire rope. The resultant signal is then digitally processed and displayed in a graduation selected and preprogrammed.

The RTM can be graduated in kN, klbs, or in tons.


The RTM is a delicate testing instrument for swift, handy and accurate testing of pretensioned stationary ropes.

Thanks to the design of the instrument it can temporarily be overloaded up to 100% of its nominal capacity without affecting the accuracy of the instrument.

Thanks to tempered outer rope supports and centre clamping jaw will give the instrument a long service life for accurate measurements.

The RTM is delivered in a robust and light weight transport case (760 x 400 x 170 mm) for easy handling and protection of instrument.


Capacities in Lbs. and (Metric Tons) 2750 lbs. (1250 kg) 1.25 Ton

4400 lbs. (2000 kg) 2 Ton

6600 lbs. (5000 kg) 5 Ton

22000 lbs. (10000 kg) 10 Ton

44000 lbs. (20000 kg) 20 Ton

Rope Diameters From 1/4 – 1-33/64″ (6 – 38 mm)
Number of Ropes to be Stored Up to 10 (factory programmed)
Weight 13.6 lbs. (6.2 kg)
Material Corrosion and weather resistant,
side plates of anodized aluminum
Working Temperatures -4°F to 140°F (-20°C to +60°C)
Battery 9 V, standard. 6LR61 or equivalent
Display Digits 12 mm, LCD, 0-19999
Operating Time 25 Hours
Accuracy 2-6% of max. capacity (dependent
on wire rope type and characteristics)
International Protection Specification Class Conforms to IP 65 according to IEC 529
Transportation 135 x 380 x 685* mm. * For RTM 1.25 ton this measure is 390 mm
Dimension 135 x 380 x 685* mm.* For RTM 1.25 ton this measure is 390 mm