Determination of heat deflection temperature (HDT)
The Vicat testing instrument consists of a bath with an option to mount measuring heads. A built-in thermostat controls the bath temperature. The thermostat ensures a constant increase of the temperature with the standardized gradient over the entire test sequence.
Not only Vicat but also HDT tests can be performed with the measuring heads by simple mechanical conversion. The measuring heads accept the specimen and measure the puncture by the Vicat needle during Vicat tests or deflection of specimens during HDT tests via the installed digital measuring transducer.
In this configuration the Vicat testing instrument can be operated as a manual testing instrument. This means that you have to record the values of the digital measuring transducer and the temperature sequence manually.
We recommend the PC expansion as an accessory. It includes an interface box, the current testXpert software and the respective communication leads. The PC expansion enables fully automatic evaluation of the test job, printout of a test report as well as operation of the Vicat testing instrument via a PC. Temperature and travel values are recorded and saved together with the test parameters.
Technical Overview
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 |
display accuracy | ±0.01 | mm |
Connection: | ||
mains voltage | 230/240 | V |
mains frequency | 50/60 | Hz |
power rating | 3460 | W |
water supply, max. | 10 | bar |
PC interfaces required |
| |
Specimen data | ||
VST specimen dimensions, max. | 10 x 6.5 x 10 | mm |
HDT specimen dimensions, max. | 13 x 15 x 130 | mm |
HDT spans | 64, 100 and 101.6 | mm |
Type | HDT/Vicat 3-300 S | HDT/Vicat 6-300 S | |
Item No. | 32603012 | 32603612 | |
Measuring stations, equipped | 3 | 6 | |
Measuring stations, possible | 3 | 6 | |
Dimensions | |||
Height | 500 | 500 | mm |
Width | 440 | 710 | mm |
Depth | 600 | 600 | mm |
- Water supply required
- The instruments are supplied without heat transfer fluid as standard. Order the corresponding amount from the accessories.