My Q Micro Controller Based Digital Twist Tester , has been designed specially to measure the TPM (Twist per meter) or TPI (Twist per inch) of the twisted yarn. This model is a motor driven fully automatic instrument with auto stop facility for motor with built in sensor.
The instrument has facility of both untwist or untwist/twist method for measurement of TPM of twisted yarn. 16 –character LCD display unit gives TPM/TPI values with S or Z type of twist.
Yarn Test Length : 50 mm to 500 mm adjustable (metric unit) or 2” to 200” adjustable (imperial unit.) test length adjustment is by slider mechanism &feeding set length on the display using keyboard. : the test length is automatically taken into account for calculation and final reading is display directly in TPM/TPI.
Suitable for S/Z type of twisted yarns.
Range : up to 9999 TPM or 99.99 TPI.
Resolution : 1 TPM or 0.01 TPI.
Elongation Range : +110mm or 4 Inch. with tolerance of -15 mm or 0.6 Inch for movement in other direction.
Motor Speed : Up to 1500 RPM. Manual control of rotation is possible by hand.