DIL 402 Expedis Classic

DIL 402 Expedis Classic

Dilatometry Redefined.

The dilatometer DIL 402 Expedis Classic offers state-of-the-art dilatometer technology and is designed for sophisticated applications. Like all instruments of the DIL Expedis series, the Classic version features the revolutionary NanoEye measuring cell; a new dimension in measuring range and accuracy.



Every Nanometer Counts.

A New Dimension in Measuring Range and Accuracy

In classical dilatometry, the two parameters measurement range and resolutionmostly seem diametrically opposed. If the resolution goes up, the measuring range usually goes down and vice versa. NanoEye, the novel opto-electrical displacement system,  features perfect linearity and maximum resolution over a measuring range which was impossible to realize until now

Functional Principle

During a test run, if the sampleexpands, all green components in the graphics move backwards with the help of a linear guide (marked in blue). The optical encoder determines the corresponding length change directly on the appropriate scale.

Key Features

Key Features

Key Technical Data

Key Technical Data

(subject to change)

  • Heating rates
    0.001 ... 50 K/min
  • Sample holder system
    Single and dual/differential system
  • Displacement system
  • Temperature accuracy
    1 K
  • Temperature precision
    0.1 K
  • Repeatability of m. CTE
    10-8 1/K
  • Measuring range
    ± 5000 μm
  • Resolution
    2 nm (over the entire measuring range)
  • Gas control
    1-way, optional 3-way switch


Proteus® Software

The unique Proteus® 7 dilatometer software offers everything a user could ever want and need: It runs smoothly, provides reliable results, and it is fast and efficient. It provides a large range of functions, but – at the same time – offers a clearly-arranged user interface. Additionally, it is intuitive and thus easy to learn. But ... that’s not all. There are some more options inside which impress even the most experienced operators – particularly the Density Determination, the patented c-DTA® and the new, innovative Identify software features.

Density Determination

This program add-on allows determination of the density change of samples with varying consistency, i.e., solids, viscous materials such as pastes, liquids or melts as well as the volumetric expansion of isotropic materials.


The c-DTA® signal gives the opportunity for simultaneous analysis of length changes and endothermal/exothermal effects. It can also be used for temperature calibration.


The unparalleled Identify, for the identification and interpretation of DIL measurements includes several NETZSCH libraries with hundreds of entries from the ceramic, inorganic, metal, alloy, and polymer or organic fields. Additionally, user-specific libraries can be created. They can be shared with other users within a computer network.

Identify allows the identification of unknown samples from the absolute values, the slope or the shape of a measured curve. This will also open up the opportunity to compare known samples against a variety of other samples, enabling one to make a statement about material quality. Finally, all measurements can be stored in the extensive database and are always available for identification or quality comparison.

All information with one single click

of unknown measurement curves

Quality Control
via agreement between the current measurement and selected database entries

Archiving functionality
for present measurements and existing database entries







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DIL 402 Expedis Select & Supreme

The new dilatometer DIL 402 Expedis Select and Supreme offer state-of-the-art dilatometer technology and are designed for a wide range of sophisticated applications. All instruments of the DIL Expedis series feature the revolutionary NanoEye measuring cell; a new dimension in measuring range and accuracy.