HDT/Vicat Allround – the All-Rounder for Convenient Testing

Zwick's HDT/Vicat Allround instruments are designed to enable convenient testing in research and development, 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 testing stations according to requirements. Test-sequence parameterization and display of measured values are conveniently handled via Zwick Roell testing software.

3-300-A1_+FO

Key Advantages and Features

  • Measuring station lowered automatically
  • Optionally available automatic test-weight lowering
  • Optional internal re-cooling device for rapid attainment of starting temperature
  • Testing to ISO 306, ASTM D1525, ISO 75 and ASTM D648.

Applications

  • Determination of heat deflection temperature (HDT)
  • as per ISO 75, Parts 1 to 3, and ASTM D648, Method 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

Functions, elements and interfaces

  • Built-in programmable logic controller (PLC) for temperature control and measured-value acquisition
  • Re-cooling controlled by solenoid valve
  • Motorized lowering of measuring stations
  • Safety thermostat
  • Electronic level-monitoring
  • Test control and data acquisition via PC with Zwick Roell testing software (RS232 interface in PC required)
  • Integrated compensation for heat expansion

Automatic test sequence

As soon as the heat-transfer fluid has reached the starting temperature, the specimens are inserted into the measuring stations and lowered (motor-driven) into the oil bath. In the next step the test weight specified in the standards is applied to type A1 instrument manually and to type A3 by motor drive and the test sequence is started by the PC software.

On completion of pre-heating under the influence of force, the displacement signals are zeroed (program-controlled) and the heating of the heat-transfer liquid at the previously 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 automatically via a solenoid valve. The specimens can afterwards be removed.

Recooling the heat-transfer liquid

Cooling for Type A1 HDT/Vicat instruments is by means of a cooling coil located in the oil-bath. Coolant can be pumped in via a connection located on the left-hand side of the instrument. Cooling is started automatically via a solenoid valve, however only at 130° or above. For faster re-cooling a connection for an external re-cooling unit is available (option).

Technical Overview

Integrated recooling unit

HDT/Vicat Allround with integral re-cooling unit and motorized test-weight application

Item no.

326042[1] [2]

326046[1] [2]

325985[1] [2]

Type

HDT/Vicat 3-300 A3

HDT/Vicat 4-300 A3

HDT/Vicat 6-300 A3

No. of measuring stations

3

4[3]

6

Temperature range

+20 to +300

+20 to +300

+20 to +300

°C

Application of test weights

motorized

motorized

motorized

Oil capacity, approx.

12.5

18.6

18.6

l

Height x width x depth

900 x 1080 x 750

900 x 1330 x 750

900 x 1330 x 750

mm

Weight (without accessories), approx.

140

160

160

kg

  1. Water supply required
  1. Instruments are supplied without heat transfer liquid as standard. The required amount can be ordered from accessories.
  1. Can be increased to 6 measuring stations via retrofit

Optional recooling unit

HDT/Vicat Allround with coolant (water) supply connection

Item no.

326038[1] [2]

326100[1] [2]

326096[1] [2]

Type

HDT/Vicat 3-300 A1

HDT/Vicat 4-300 A1

HDT/Vicat 6-300 A1

No. of measuring stations

3

4[3]

6

Temperature range

+20 to +300

+20 to +300

+20 to +300

°C

Application of test weights

manual

manual

manual

Oil capacity, approx.

11.8

16.8

16.8

l

Height x width x depth

460 x 560 x 700

460 x 780 x 700

460 x 780 x 700

mm

Weight (without accessories), approx.

70

90

90

kg

  1. Water supply required
  1. Instruments are supplied without heat transfer liquid as standard. The required amount can be ordered from accessories.
  1. Can be increased to 6 measuring stations via retrofit

General technical data

Description

Value

General technical data for HDT/Vicat Allround instruments

Display accuracy at 250 °C

±0.5

°C

Spatial temperature gradient

±0.2

°C

Temperature measurement resolution

0.1

°C

Temperature sensor

Oil-bath temperature is measured by 1 temperature sensor. In addition 1 sensor is located adjacent to the specimen at each measuring station

Heating rate

50, 120 or freely adjustable

K/h

Displacement measurement with inductive LVDT measuring transducers

displacement measurement range

15

mm

display accuracy

±0.01

mm

Connections:

mains voltage

230

V

mains frequency

50/60

Hz

power rating

3000

W

water supply, max.

10

bar

PC interfaces required

RS232 interface

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

Testing Software testXpert III, intuitive and workflow-based

testXpert II Testing Software

Intuitive and Workflow-Based Right from the Start!

testXpert III is the result of close cooperation with software users in the materials testing industry and the experience of over 30,000 successful testXpert installations. From the very start, testXpert III uses a workflow that is based on your lab processes to guide you step by step through your test.

Getting started is easy!

Our workflow-based software keeps training time to a minimum and makes testing efficient and reliable. The intuitive interface is identical for all Zwick materials testing machines and instruments— enabling efficient testing, from simple standard-based tests to demanding tests in research and development.
The clear, logically structured workflow guides the operator the whole way, through test preparation, execution, and results analysis, establishing a clearly identifiable visual association of all related content, ensuring fast, easy navigation. A newly structured user interface with large, expressive icons helps you navigate through the software easily so you can start testing quickly.

Top