Generalities
Determining optimum twist can have a critical effect on the physical characteristics of yarns. Yarns with a low twist count are capable or producing a yarn with increased softness for knitting and warmth. Increasing twist count can provide additional tensile strength. However, maximum tensile strength can decrease if the twist angle is greater than the desired amount.
The model ETT Electronic Twist Tester by Brustio meets applicable International Standards for measuring both the untwist/retwist method and yarn twist method by direct rotational counting. ETT instrument software allows the selection of both twist methods, in addition the software reports sample statistics including average, standard deviation, maximum and minimum. Result data can also be printed or sent to a PC.
The ETT Electronic Twist Tester is a motorized unit consisting of two clamps. One clamp is adjustable for varying sample length before and during a test and a second clamp is rotated in either direction to measure counts.
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Technical characteristic
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Speed rotation:
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0 - 2200 r.p.m.
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Display:
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Back-light LCD
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Output:
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RS232 for the printer or PC
(only S version)
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Clamp distance:
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1-50 cm (0.5-20 inc)
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Elongation indicator:
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0-100 mm
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Pre-tension weights:
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1,2,3,5,10,15,30 (Standard)
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Power supply:
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single phase specify tension and frequency
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Power consumption:
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25 Watt
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Dimensions:
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106 x 23 x 23 cm (41.7 x 9 x 9 in) |
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Weight:
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16 Kg.
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Models
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ETT/
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Electonic Twist Tester |
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ETTS/
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Electonic Twist Tester with the printer at 20 columns
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Accessories and spare parts
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TPESI/
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Additional pre-tension weights
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LENTEB4003
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Magnification lens 3x
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BELTCARTA
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Paper for printer
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BELTNAST/
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Tape for printer
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Rules
ASTM D 1422-1423
BS 2085
DIN 53832/1
IWTO 25-70/E
UNI EN ISO 2061
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Printout
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