A, use
The instrument used to measure all kinds of yarn twist.
B, the major technical indicators
1, the test range: all kinds of yarn yarn tension: a group of weight can be adjusted according to the type of yarn.
2, chuck speed: 2000r / min, 800r / min, slow jog.
3, the test length: 25, 50, 100, 200, 250, 500 mm
4, testing methods:. A direct counting method b a c untwisting twisting method of secondary untwisting twisting method d three untwisting twisting method.
5, the test data output: (test number: less than 99 times)
a display output value every twist Xi; twist batch average value Xe; trials Nn; mean twist of the following occurs
b printout number Ni; mean square S; unevenness H; coefficient of variation CV value; twist factor 〆.
6, power supply, power: 220V ± 10%, 50Hz ,, (host) is less than 25W
7, the use of environmental requirements: humidity 20 ± 10 ℃
C, applicable standards
ISO2061 "Textiles - Determination of twist in yarns - Direct counting method"
FJ547 "qualities of cotton yarn spinning test"
FZ / T10001 "measuring airflow yarn twist - untwisting twisting Law"