lightXtens Extensometer

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.
  • Its robustness 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_collage_AllroundLine_ProLine_+FO

Key Advantages and Features

Advantages and features

The lightXtens extensometer features non-contact operation. It is extremely easy to operate and requires no special knowledge. There is no need to adjust or configure the lenses and the test sequence is completely automatic:

  • automatic determination of initial gage-length, with transmission to testXpert testing software
  • reliable, automatic identification of gage marks
  • tracking of gage marks and transmission of all data to 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. Connection to the testControl II electronics is via a digital bus system, with synchronized force-displacement acquisition.

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.

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.

Applications

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

  • Suitable 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.

Technical Overview

The lightXtens extensometer can be used with materials testing machines from the AllroundLine and ProLine series. 

  • lightXtens extensometer with holder for mounting on an AllroundLine testing system
  • ProLine lightXtens extensometer with holder for mounting on a ProLine testing system

Type

lightXtens

ProLine lightXtens

Item no.

031081

086056

Resolution

1.5

3

µm

Ambient temperature

+10 to +35

+10 to +35

°C

Accuracy

Class 1 from 3 mm

Class 1 from 3 mm

to EN ISO 9513

Initial gage length L0

10 to 900

10 to 900

mm

measurement path

900

900

mm - L0

Optical grab range of the carriages in horizontal and vertical directions

≤ ± 3

≤ ± 3

mm

Positioning speed

1800

1800

mm/min

Distance: measurement carriage - specimen

500 ± 5

500 ± 5

mm

Light source

Laser, red, Class 1 (no protective measures required)

Laser, red, Class 1 (no protective measures required)

Electrical supply:

Voltage

100 to 240, 1Ph/N/PE

100 to 240, 1Ph/N/PE

V

Power frequency

50/60

50/60

Hz

Power consumption

50

50

W

Dimensions (H x W x D)

1790 x 192 x 310

1790 x 192 x 310

mm

Tracking error:

At 50 mm/min sensor-head speed

0.01

0.01

mm

At 100 mm/min sensor-head speed

0.02

0.02

mm

At 250 mm/min sensor-head speed

0.03

0.03

mm

Weight, approx.

43

43

kg

testXpert II minimum version

3.1

3.1

Automatic correction of gage length L0 on attaining pre-load

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