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4/5/2016 | 1 MINUTE READ

TESTING: HDT & Vicat Testers Have Increased Efficiency

Originally titled 'TESTING: More Efficient HDT & Vicat Testers'
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Instron's new HV Series is designed to reduce workload and boost efficiency.

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The new HV Series of HDT (heat distortion temperature) and Vicat (softetning point) testing systems for thermoplastics from Instron, Norwood, Mass., are said to significantly reduce workload and boost efficiency in the testing lab. The series includes the entirely manually-operated HV3S with two testing stations plus two systems with larger bath size and higher automation level—HV6M and HV6X—for up to six testing systems. All three units use advanced electronics that automatically zero the position of the LVDT measuring sensors before starting a test, reducing test time and human error.

The HV3S is ideal for testing labs that perform HDT or Vicat tests at a low volume, and its compact size makes it ideal for busy labs with a lot of testing equipment. Where HDT or Vicat testing is part of the daily activity, the HV6M features manual weight application on up to six stations with a motorized lifting mechanism designed to significantly reduce operators’ efforts. Where time is absolutely crucial, the HV6X system offers both motorized lifting station and weights application on all of its up to six testing stations, making it suitable for labs with a continuous backlog of specimens. Its interlocked cover shield restricts access during testing, protecting the used from moving parts.

The intuitive design of weights—which are stackable and allow the user to handle them with confidence--is said to eliminate the risk of selection mistakes. A wider range of stress values can be achieved without the need for any additional tools. All three units use silicone oil as heat transfer medium—2.4 USA gal for HV3S, 4.2 USA gal for HV6M and HV6X—to cover a temperature range from 20-to-300 C (68-to-572 F).



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