HDT/Vicat Standard
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HDT/Vicat Standard - 1

Zwick Materials testing Zw/ck / RoellProduct Information HDT/Vicat Standard PI 601 0317 CTA: 46266 46249 HDT/Vicat 3-300 standard with 3 measuring stations Applications Determination of heat deflection temperature (HDT) • as per ISO 75, Parts 1 to 3, and ASTM D648, Methods A and B, on thermoplastics, hard rubber and fiber-reinforced and filled thermosets. Determination of Vicat softening temperature (VST) • of thermoplastics as per ISO 306 and ASTM D1525 . Determination of creep behavior • under flexural load Function description HDT/Vicat Standard instruments are designed for use in goods inwards checks and production monitoring, as well as for educational and training purposes. The instruments are available in various versions, with up to 6 measuring stations according to requirements. Test-sequence parameterization and display of measured values are conveniently handled via Zwick Roell testing software. Test sequence As soon as the heat-transfer fluid has reached the starting temperature, the specimens are inserted into the measuring stations and lowered manually into the oil bath. In the next step the test weight specified in the standards is applied manually and the menu-driven test-sequence is started on the PC. On completion of pre-heating under the influence of force, the displacement signals are zeroed (program- Vicat flat-ended needle controlled) and the heating of the heat-transfer fluid at the pre-set rate is started. As soon as the required deflection, outer-fiber strain or penetration is attained, the heating is switched off and the test is ended. Re-cooling of the heat-transfer fluid is started manually or by the PC via a solenoid valve. Specimens can afterwards be removed. Functions, elements and interfaces • built-in microprocessor-controlled electronics for temperature control and measured-value acquisition • measured values clearly displayed • safety thermostat • electronic level-monitoring • test control and data acquisition via PC with Zwick Roell Prufsoftware (2 RS232 interfaces required in PC; 1x for temperature channel, 1x for displacement channel) • integrated compensation for heat expansion of measuring stations with PC operation • manual lowering of measuring stations • manual application of test weights. Re-cooling the heat-transfer liquid Instrument cooling is via a cooling coil located in the oil-bath. Coolant (water) can be pumped in via a connection located on the left-hand side of the instrument. Water-cooling is switched on manually, but not before 130°C at the earliest. For faster re-cooling a connection for an external re-cooling unit is available.

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HDT/Vicat Standard - 2

Zwick Materials testing Zw/ck / RoellProduct Information HDT/Vicat StandardTechnical data Description Value General technical data for HDT/Vicat Standard instruments Display accuracy at 250 °C ±0.5 °C Spatial temperature gradient ±0.1 °C Temperature measurement resolution 0.1 °C Temperature sensor Oil-bath temperature is measured by 1 temperature sensor. Heating rate 50, 120 or freely adjustable K/h Displacement measurement with digital measuring transducers: resolution 0.001 mm PC interfaces required • 1x for temperature channel (RS) • 1x for...

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HDT/Vicat Standard - 3

1) The instruments are supplied as standard without heat-transfer fluid. The appropriate quantity of fluid can be ordered from the accessory list. Please see the information for the basic instruments (oil capacity) for the required amount of heat-transfer fluid. All data at ambient temperature. We reserve the right to make technical changes in the course of ongoing development.

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HDT/Vicat Standard - 4

Zwick Materials testing Zw/ck / Roell Product Information HDT/Vicat Standard Optional accessories External re-cooling for HDT/Vicat Standard and Allround A1 Description Item number Optional re-cooling unit: external re-cooling for oil baths, manually switched 326189 Re-cooling time from 300°C to 30°C approx. 20 minutes, rating 500 W (at 12 °C coolant temperature)1) 1 A water supply is required Specimen cutters for Vicat Description Item number Vicat specimen cutters for dimensioning Vicat specimens, with stop for specimen length of 10 750485 All data at ambient temperature. We...

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