Short description
Wet Elongation Tester NDT 100 for the determination of the wet elongation of paper according to Fenchel
- Non-contact measured value acquisition via laser sensor excludes peripheral influences such as friction or counterforces of the transducer.
- Variable test time from 1 - 900 sec.
- Separation of measuring time and immersion time possible (optional)
- Digital measurement accuracy 0.01
- Automatic zero adjustment and compensation of clamping errors
- Integrated climate sensor (optional)
- The course of the measurement is displayed graphically
- The calibration status can be checked with the calibration standards supplied with the instrument.
- RS 232 interface
- Measurements according to 3 standards (fennel - 1 g, 1 N in CD and 4 N in MD).
Structure and mode of operation
Fenchel wet tensile testers with a load of 1 g per mm specimen width have been known in the paper industry for many years. With the NDT 100 wet strain tester, the measurement has been automated and equipped with an electronic control system that brings considerable advantages over the original instrument in terms of measured value acquisition, measurement cycle and operation.
Usually, strip widths of 15 or 50 mm with an effective specimen length of 100 mm are used to determine the wet elongation of paper. The device is operated menu-driven. The measurement is automatic. By simply placing or removing load weights, tests are realized according to the following standards.
- Fennel standard with load of 1 g per mm sample width
- Mytek standard CD with load of 1 N on 60 mm specimen width
- Mytek-Standard MD with load of 4 N on 60 mm specimen width
