Electronic Twist-tester 61

Electronic Twist-tester Branca 61S measures the Twistings number of monofilament yarns, plied yarns, multi-level yarns, Open End yarns and others according to International Standard

It is designed to determine the twists per meter (TPM) or twists per inches (TPI) of various types of yarns as e.g. single, double, multi-level and Open End and others.

Electronic twist-tester 61S is designed in compliance with Standard UNI 9069, UNI EN ISO 2060, ISO 2061, ASTM D-1423, ASTM D-1422

The reading resolutio has been enforced by the highest measure accuracy at +/- 0,1 twist and yarn sample can be set at different lenghts from 0 to 50 cm in standard models or until 1 or 2 m for special versions commonly used for tyre cord applications.

The electronic twist tester 61S is easy to use thanks to the user interface with HMI Touch Screen that allows to select the standard test method for different yarn types:

• SINGLE YARN TEST, untwist-retwist method suitable for single yarn;
• DIRECT COUNTING METHOD, only yarn untwist as per ASTM Standards;
• DUAL YARN TEST, for double plied yarns;
• SCHUTZ METHOD, for Open End yarns according to the 2nd Appendix New “double test check” worked out by Messrs. M.KUENY, H.LE CHATELIER and R.A. SCHUTZ;
• MANUAL MOTOR CONTROL, motor control commanded by the operator with twistings reading on real time;

AUXILIARY test methods are implemented only in PRO version:

• SLIPPAGE METHOD, to determine when yarn fiber slip off applying different pretension weight;
• MULTI-LEVEL YARN TEST, suitable to determine the turns no. of plied yarns up to 5 yarn levels;
• GUIDED ANALYSES, operator led by the indications on the screen and test indexing, can perform multiple analysis on Single, Direct Counting, Dual, Multi-level yarns following instructions shown on display step by step;

The test report is printed with ASCII printer supplied on request, where the operator can input data and notes as additional data, e.g.:

• Company;
• Apparel ID
• Tension applied to yarn in grams;
• Notes;

Test report includes supplementary information about:

• Yarn twist direction: S or Z;
• Yarn length, expressed in cm or inches;
• Saved memory up to 20 results per test method;

Statistical evaluations:

• Minimum;
• Maximum;
• Average;
• Delta (Max-min);
• Coefficient of Variation (CV%);
• Standard Deviation (ST.Dev%);

Saved results are expressed both in TPM (twist per meter) or in TPI (twist per inch).

The measure unit are shown on test report.

During the test the HMI touch screen shows data and evaluation data, e.g.:

• Motor speed in rpm;
• Number of twist on real time;
• Test index (1..20);
• Direction of twist (S/Z or Z/S);
• Operation commands e.g. start, stop, repeat, etc.);

TWIST4.0: the application software for PC through USB serial communication allows to do automatic statistical evaluations on test results, generation of trend graphs, macro plugins and math formulas;

• Manual twist tester 18
• Electric twist tester 17