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The stationary Combi Package plus consists of the following products for determining density index.

Using the stationary Density Tester 3VT plus which has the added advantage of a crucible pre-heating chamber, two melt samples are poured for comparison purposes. One of the samples is poured at a defined vacuum of 80 mbar and the other at atmospheric pressure. The electronic balance MK 3000 is then used to determine the density index automatically on the basis of the principle of Archimedes. The density index represents the percentage difference in density of the two samples. The lower the density index the cleaner the aluminium melt.

Special features:

  • Long life span due to design based on the special requirements of the foundry
  • User-friendly design
  • Process reliability through fully electronic control:
  • - fully automatic control of vacuum to 80 mbar
    - leakage indicator
    - low voltage indicator
    - cycle counter
  • Fewer incorrect readings and greater accuracy of measurement through use of crucible pre-heating chamber
  • Exact calculation of density to four decimal places (0,0000 g/cm³)
  • Interface for transferring density index results to:
  • - the PC Software provided
    - the optional Memory Box
  • Capable of 100% calibration
  • CE conformity
  • Tested to DGUV standard

The PC Software supplied with the unit permits:

  • Saving of measurements
  • Use of statistical process control (SPC)
  • Analysis and assessment of data by means of various filters for the density index results
  • Printable reports
  • Export of results to MS Excel


12 month warranty within Europe.

6 month warranty outside Europe.

Scope of delivery

  • 1 Ladle, 500 mm
  • 1 Crucible tong
  • 2 Crucibles
  • 1 Coating, 200 ml
  • 1 Insulation brick
  • 1 Power supply
  • 1 Data transfer cable
  • 1 Plastic set-up
  • 1 Water beaker
  • 1 PC Software

Technical data

Vacuum Density Tester 3VT plus

Design: stationary tabletop device, robust powder-coated steel housing, with two carrying handles on the sides
Dimensions: W 590 x D 570 x H 480 mm
Weight: approx. 42 kg
Power connection: power cable with plug, 230 V, 1400 W, 6,3A, 50-60 Hz, (115 V available on request)
Power consumption: 1400 VA
Vacuum pump: oil-lubricated vacuum pump
Timer: electric short-period timer (1-99 min. or endless) 00 integrated in display
Vacuum chamber upper part: incl. safety inspection glass
Heating: fixed temperature 200°C ± 10°C

Electronic Density Index Balance MK 3000:

Design: Powder-coated aluminium die-cast housing incl. plastic set-up
Dimensions: W 230 x D 350 x H 230 mm (incl. plastic set-up)
Weight: approx. 5,5 kg
Plastic set-up: of impact-proof plastic
Weighing range: 3.000 g
Resolution: 0,01 g
Reproducibility: 0,01 g
Stabilising time: 3 sec.
Ambient temperature: 10-50°C
Mains voltage: 100-240 VAC, 50-60 Hz
Power consumption: 10 VA