lightXtens 2-1000

The ideal extensometer for high-extension, highly elastic and contact-sensitive materials

The lightXtens extensometer is ideal for safe, reliable, accurate measurements during tensile tests on high-extension, highly elastic and contact-sensitive materials.

Ideal for specimens displaying high fracture energy and prone to whipping at break and therefore likely to damage mechanical, contact-type measuring systems.
lightXtens' robustness during testing and ease of operation make it an attractive alternative to video or laser-based extensometers.
Satisfies the requirements of Accuracy Class 1 to ISO 9513 from 3 mm.

lightXtens is a non-contact extensometer for standardized testing situations. It is extremely easy to operate, with a fully automatic test sequence.

Typical applications

Tensile tests on high-extension, highly elastic materials: rubber and elastomers (e.g. to ISO 37, ASTM D412, DIN 53504), natural rubber (latex), films (e.g. to ISO 527- 3, ASTM D882, ASTM D532), textiles (especially ropes, belts, industrial textiles).
Tensile tests on specimens with large initial gage-length, e.g. wire ropes, litz wire.
Specimens with high fracture energy and prone to whipping at break, which might damage mechanical, contact-type measuring systems.

Advantages & features

Function description

The specimen is provided with two marks spaced as the desired initial gauge length.

Once the testing system has applied the pre-load to the specimen, lightXtens measures the actual present gauge length (the distance between the marks under pre-load) as required. The first measurement carriage moves to the two marks on the specimen and determines their separation, the initial gauge length L₀. The second measurement carriage positions itself on the remaining unoccupied mark. The test then proceeds automatically. During the test the two optical measurement carriages track the marks applied to the specimen.

The displacement difference between the two optical measurement carriages corresponds to the change in length. It is recorded digitally via an encoder using mechanical differentiation and transmitted to the testControl machine electronics via EtherCat interface.

Non-contact, simple, fully automatic

Non-contact, simple, fully automatic

The lightXtens extensometer measures without making contact. It is extremely easy to operate and requires no special knowledge. There is no need to adjust or configure the lenses. The test sequence is completely automatic:

Automatic determination of initial gauge-length, with transmission to the testXpert testing software
Reliable, automatic identification of gauge marks
Tracking of gauge marks and transmission of all data to the testXpert testing software
Return to start position

Specimens are marked beforehand with dots or strips made of a special film. Various marking systems are available for this purpose. The force-displacement acquisition is synchronized.

Robust, resistant, reliable

Robust, resistant, reliable

lightXtens is a robust and highly reliable system, even in harsh environments. It is resistant to external influences such as light variations, extraneous light and air currents. lightXtens is also wear-free in operation.

Use in an extended temperature range

lightXtens is also suitable for use in an extended temperature range in conjunction with temperature chambers - no special set-up procedure is required for lightXtens.

Technical overview

lightXtens 2-1000 can be mounted on an AllroundLine materials testing machine, (not for zwickiLine)
ProLine lightXtens 2-1000 can be mounted on a ProLine materials testing machine, (not for zwickiLine)

Type	lightXtens 2-1000	ProLine lightXtens 2-1000
Item No.	1074413	1074415
Initial gauge length L₀	10 ... 900	10 ... 900	mm
Measurement travel	1000	1000	mm - L₀
Resolution	1.5	3	µm
Accuracy to EN ISO 9513	Class 1 from 3	Class 1 from 3	mm
Positioning speed	1800	1800	mm/min
Tracking speed, max.	1000	1000	mm/min
Measurement carriage optical range in horizontal and vertical directions	±3	≤ ± 3	mm
Distance carriages - specimen	500 ± 5	500 ± 5	mm
Power input specifications
Power supply	100 ... 240	100 ... 240	V, 1Ph/N/PE
Permissible voltage fluctuation	±10	±10	%
Power consumption (full load), approx.	70	70	W
Power frequency	50/60	50/60	Hz
Ambient temperature	-40 ... +120	+10 ... +35	°C
Weight, approx.	43	43	kg
Minimum version	testXpert II V3.61 or testXpert III