DIL 502 Expedis by NETZSCH, a precise instrument designed for thermal analysis and measurements in material testing.
DILATOMETRY

DIL 502 Expedis® Classic

The Work Horse for your everyday work

Highlights

The DIL 502 Expedis®Classic Offers State-of-the-Art Dilatometer Technology at Best Price/Performance Ratio

Wide Temperature Range
Seamlessly operates from room temperature up to 1600°C and can handle even the most challenging materials.

Exceptional Measurement Range and Resolution
The NanoEye optoelectronic displacement system delivers exceptional linearity and nanometer-level resolution, capturing even the slightest dimensional changes.

Consistent and reliable results every time
Automatic Specimen Length Detection eliminates manual measurement errors by automatically detecting the specimen’s initial length before testing.

High Throughput Capability
Optional dual furnace and dual measuring system configurations enable you to test multiple samples simultaneously, accelerating your workflow.

Maintenance-free operation
Engineered for maximum uptime with minimal maintenance to boost your lab’s operational efficiency.

Achieve consistent and reliable results every time
Automatic Specimen Length Detection eliminates manual measurement errors by automatically detecting the specimen’s initial length before testing.

MultiTouch Technology Provides Stable Sample Positioning: Achieve stabilized, repeatable specimen placement with MultiTouch's unique, tail-like motion, which optimizes positioning and enhances measurement reliability.

Compact All-in-One Design
Eliminates the need for additional chillers or power units, creating a clutter-free workspace that is ideal for high-pressure industrial environments.

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Our Quality Promise:

NETZSCH’s Unlimited Warranty

At NETZSCH, our commitment to quality goes beyond the instruments themselves. We understand that your investment in advanced technology is a long-term one, and and that’s why we offer something truly unique – our Unlimited Warranty.

Method

The Method for Determination of Dimensional Changes

Pushrod dilatometry is a technique used to measure how the size of a material changes as it is heated or cooled over time. During the test, the sample is placed in a furnace where the temperature is carefully controlled according to a set program. As the temperature changes, the sample either expands or contracts.

A pushrod in contact with the sample moves to follow these changes in size. The movement of the pushrod is measured very precisely to track how much the length of the sample changes.

This allows for the characterization of various fundamental phenomena like:

This information helps scientists and engineers understand the material's behavior at different temperatures, which is important for designing products that will perform well in real-world conditions.

Cross-sectional view of the DIL 502 Expedis furnace, highlighting the sample holder and displacement system for thermal analysis.
View inside the DIL 502 Expedis® furnace
NETZSCH TCT 716 *Lambda* Guarded Heat Flow Meter for precise contract testing of thermal conductivity in materials.

Discover the revolutionary precision of the NanoEye displacement system

With traditional dilatometry, improving resolution typically requires sacrificing measurement range, and vice versa. However, the revolutionary NanoEye system eliminates this trade-off.

The NanoEye system delivers ultra-high resolution and an exceptionally wide measurement range, setting a new standard in thermal expansion analysis. 

At the heart of the DIL 502 Expedis® is the revolutionary optoelectrical NanoEye displacement system. Its cutting-edge technology ensures perfect linearity in every measurement, outperforming conventional dilatometry systems. A linear encoder translates position into a digital signal with consistent accuracy, regardless of temperature or sample length.

Maximize Lab Efficiency with the Energy-Smart DIL 502 Expedis®

Today, global attention towards saving and efficiently using energy has never been higher. Industries and academia worldwide are actively researching ways to conserve energy and utilize alternative resources. 

The DIL 502 Expedis® is at the forefront of optimizing energy use. It eliminates the need for energy-intensive water-cycle thermostats, instead using advanced electronic temperature control to maintain exceptional stability. This allows you to obtain accurate thermal expansion measurements while significantly reducing energy consumption and heat waste in your lab.

Additionally, the instrument features customizable Idle and Eco modes. These modes intelligently manage power when the instrument is idle. This reduces CO₂ emissions, helping to keep your lab green without compromising performance or usability.

Thin film ribbon cable thermal conductivity testing

Specifications

Temperature rangeRT to 1600°C
Furnaces
  • Fused Silica
  • Silicon Carbide (fast cooling)
Specimen dimensions

Length: Max. 52 mm

  • Ø 12 mm standard (optional Ø 19 mm max.)
  • Ø 8 mm in dual specimen holder system
Heating rate0.001 … 50 K/min
Gas flow control

1-way switch  

optional 3-way switch, MFC

Measuring range± 5000 μm
Force range (load at the sample)

10 mN … 3 N

(compressive and tensile force depending on sample holder) 

ΔL Resolution2 nm
 Force resolution0.001 N

Accessories and more:

The DIL 502 Expedis® comes with a variety of sample holders and accessories made from different materials. This allows you to optimize your dilatometer’s performance and obtain reliable, accurate data consistently. This flexibility enables you to adapt your setup to different materials and testing conditions, maximizing the precision and efficiency of each measurement.

Sample holders made of fused silica and alumina, showcasing various designs for lab applications in analytical testing.
Selection of available sample holders in fused silica and alumina

Protect your samples and equipment with our specially designed containers and protective sleeves. These are key to preserving specimen integrity and ensuring accurate results. Our versatile containers can hold powders, pastes, and materials that transition from solid to liquid, including molten salts. Built-in trays catch leaks to prevent damage. Our protective sleeves provide a barrier against contamination and are available in various materials and for various temperatures.

Collection of various cylindrical silicone rubber parts in beige, black, and clear, highlighting different sizes and shapes.

The DIL 502 Expedis® dilatometers come equipped with a range of advanced cooling options designed to perfectly match your testing requirements. Whether you need to replicate real-world conditions or specific manufacturing processes, our customizable cooling solutions deliver the most accurate and relevant data. Using compressed air cooling, the DIL 502 Expedis® drastically reduces turnaround times between tests, boosting your productivity. Enjoy superior temperature uniformity and rapid response—essential for rate-controlled SinteringSintering is a production process for forming a mechanically strong body out of a ceramic or metallic powder. sintering and analyzing materials exposed to fast temperature changes. Achieve temperatures as low as -180°C/-150°C with liquid nitrogen (LN₂) cooling, or opt for the air intracooling system (AIC 80) to reach -60°C without LN₂. Tailor your thermal testing with precision and efficiency.

FT-IR spectra comparison of gases released from pure ibuprofen and Ibu 400 akut tablet at 231°C, highlighting key functional groups.
Air Intracooler AIC 80
Customer support representative at a computer, smiling and engaged, highlighting NETZSCH's commitment to service excellence.


Proven Excellence in Service

At NETZSCH Analyzing & Testing, we offer a comprehensive range of services globally to ensure the optimal performance and longevity of your thermoanalytical equipment. With a track record of proven excellence, our services are designed to maximize the effectiveness of your devices, extend their lifespan, and minimize downtime. 

Unlock the full potential of your equipment with our tailored solutions, backed by years of industry expertise and innovation.

Software

Proteus® - Best Practice for Measurement and Evaluation

Experience the power of Proteus® dilatometer software, which is fast, reliable and incredibly user-friendly, with an intuitive interface that is easy to learn. With a comprehensive range of functions, it meets all your testing needs and impresses even the most experienced operators with advanced features such as patented c-DTA®®, DensityThe mass density is defined as the ratio between mass and volume. density determination, rate-controlled SinteringSintering is a production process for forming a mechanically strong body out of a ceramic or metallic powder. sintering and the innovative Identify software. Proteus®® is the all-in-one solution that will take your materials analysis to the next level with enhanced efficiency and precision.

Available software features:

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/ExothermicA sample transition or a reaction is exothermic if heat is generated.exothermal effects. It can also be used for temperature calibration. 

AutoEvaluation by NETZSCH is the smart software that transforms thermoanalytical data analysis into a fast, effortless experience. Say goodbye to manual setups: AutoEvaluation independently interprets your measurement curves and delivers accurate results instantly. For polymer testing, it automatically identifies key transitions like Glass Transition TemperatureThe glass transition is one of the most important properties of amorphous and semi-crystalline materials, e.g., inorganic glasses, amorphous metals, polymers, pharmaceuticals and food ingredients, etc., and describes the temperature region where the mechanical properties of the materials change from hard and brittle to more soft, deformable or rubbery.glass transition and softening points with just one click.

NETZSCH's Identify software extension is the most powerful tool on the market for verifying materials. It allows for comparison of a given curve with other individual curves (e.g., groups of curves in quality control) or with literature data from selected libraries. The included extensive libraries contain hundreds of entries from various material categories. Users can also create their own custom libraries and share them across a network. 

This feature is essential for testing materials such as glass and glazes, which soften when heated. It ensures accurate results and protects your equipment from damage. Once a preset shrinkage value is reached, the measurement stops automatically to prevent damage to the pushrod and specimen holder, with the pushrod retracting safely away from the sample.

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Consultancy & Sales

Do you have further questions about the instrument or the method and would like to speak to a sales representative?

Service & Support

Do you already have an instrument and need technical support or spare parts?

Downloads and Media

Videos

Designed for Precision – Discover the New DIL 502 Expedis® Series by NETZSCH

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Experience precision like never before with the new DIL 502 Expedis® Series – the benchmark in high-performance dilatometry.
From -180 °C to 2800 °C, analyze shrinkage, SinteringSintering is a production process for forming a mechanically strong body out of a ceramic or metallic powder. sintering, and Phase TransitionsThe term phase transition (or phase change) is most commonly used to describe transitions between the solid, liquid and gaseous states.phase transitions with NanoEye® accuracy and intelligent software.
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