Device used to accurately measure the length of yarn samples taken from woven or knitted fabrics under known tension.
It works according to the principle of correcting the applied tension.
Tension can display digitally. Correction Tension is provided by a manual moving clamping jaw.
Intended amount of pre-tension can applied on the sample yarn.(0 to 500g).
At the end of the process, the initial length of the sample and the length after pretensioning are displayed digitally on the screen.(max 1250 mm)
Values can display on PC or printed with RS323 mini-printer.
I014B : PROWHITE CRIMP TESTER with PC
I014D : PROWHITE CRIMP TESTER DIGITAL
ISO 72-11-5, ISO 7211-3, ASTM D3883