Drop Shape Analyzer – DSA100S – Krüss

Advanced Drop Shape Analysis for Surface Science

The DSA100 Drop Shape Analyzer – DSA100S from Krüss presents a top-tier semi-automatic measurement solution for both static and dynamic contact angle analysis, crucial for scientific evaluation of wettability through surface free energy (SFE) determination. Its robust design makes it exceptionally suitable for reliable quality assurance of surface pre-treatment techniques and for the development and optimization of various wetting and coating processes. The instrument is enriched with accessories enabling ultra-fast one-click SFE measurement and specialized analysis at elevated temperatures, broadening the application range significantly.

Key application areas include optimizing activation processes like plasma, flame, or corona treatment before bonding or coating, understanding the wettability of various materials including plastics, glass, ceramics, and metals, evaluating the efficiency of hydrophobic and other types of coatings, analyzing surface cleanliness, and conducting wetting analysis under controlled temperatures.

DSA100S heralds advanced measuring methods, including contact angle measurements on solid surfaces and using a gas bubble, analyzing contact angles for two drops dosed in parallel, and determining the surface free energy of solids. The robust housing minimizes vibration impact, while software-controlled dosing ensures precision and reproducibility. The high-resolution camera and quality zoom lens work in tandem with the ADVANCE software for precise, user-independent results.

Technical Specifications


Dosing System
  • Syringe Dosing: 1 × software-controlled
  • Liquid Needle double pressure dosing: optional
  • Multi-dosing system (optional): up to 8 liquids software-controlled
  • Drop deposition (syringe dosing): software-controlled
  • Syringes, volume: glass (1 × 450 μL), disposable (900 μL)
  • Resolution (syringe dosing): 20 nL
  • Speed (syringe dosing): 0.004 to 25 µL/s

Camera system (standard)
  • Model: Camera CF04
  • Connection: USB 3.0
  • Resolution: 1920 × 1200 px
  • Frame rate: 2300 fps
  • Dark noise: 7 electrons
  • Dynamic range: 73 dB

Optics (standard)
  • Focus: manual
  • Zoom: 7× zoom, manual
  • View angle: ±4°
  • Field of view: CF04: 3.9 mm × 3.9 mm to 24.7 mm × 24.7 mm
  • Resolution of optics: CF04: 3.1 to 21.7 μm

Illumination
  • Types: high power monochromatic LED
  • Wave length, dominant: 470 nm
  • Field of light: 46 mm × 46 mm (D × H)

Stages
  • Control: x-axis: manual (software-controlled optional available)y-axis: manual (software-controlled optional available)z-axis: manual
  • Length: x-axis: 100 mmy-axis: 100 mmz-axis: 45 mm
  • Resolution: x-axis: 2 mm/turny-axis: 2 mm/turnz-axis: 16 mm/turn

Liquid Needle pressure dosing system
  • Included in setup: optional
  • Types: double
  • Control: software-controlled
  • Cartridge, volume: disposable (1 mL)
  • Resolution: 0.1 μL
  • Speed: fixed (fast jet)

Camera system (optional)
  • Model: 5 megapixel high speed camera CF10
  • Connection: USB 3.0
  • Resolution: 2592 × 2048 px
  • Frame rate: 3450 fps
  • Dark noise: 9.3 electrons
  • Dynamic range: 60 dB

Optics (optional)
  • Focus: manual
  • Zoom: 7× zoom, manual
  • View angle: ±4°
  • Field of view: CF10: 7.1 mm × 5.6 mm to 49.8 mm × 39.4 mm
  • Resolution of optics: CF10: 2.7 to 19.2 μm

Tilting (optional)
  • Types: internal tilting tableexternal tilting table
  • Control: software-controlled
  • Range: 0 to 90°
  • Resolution: internal: 0.01°external: 0.1°
  • Accuracy: internal: 0.3°external: 1°

Software
  • Software type: ADVANCE
  • Software languages: Chinese (simplified), English, French, German, Japanese, Korean, Portuguese, Russian, Spanish
  • Software modules: Contact angle (recommended)Surface free energy of solids (recommended)Interfacial and surface tension of liquids: - pendant drop, rising drop (optional)- Contrained Sessile Drop (optional)Adhesion Analysis (optional)Remote Control API (optional)Fiber contact angle: - Meniscus (optional)

Sessile drop
  • Results: contact angle
  • Range: 0 to 180° (software-based)
  • Resolution: 0.01° (software-based)
  • Accuracy: 0.1° (instrument-based)
  • Models: conic sectionpolynomialcircleYoung-Laplaceheight-width
  • Types: advancingrecedingstaticdynamictilting

Surface free energy of solids
  • Results: surface free energypolar & disperse partacid & base partH-bond part
  • Models: equation of stateZismanFowkesWuOwens-Wendt-Rabel-KaelbleSchultz-1extended Fowkesacid-base theory

Meniscus
  • Results: contact angle
  • Range: 10 to 90° (software-based)
  • Resolution: 0.01° (software-based)
  • Minimum fiber diameter: 55 μm
  • Types: staticdynamicadvancingreceding

Captive bubble
  • Results: contact angle
  • Range: 0 to 180° (software-based)
  • Resolution: 0.01° (software-based)
  • Accuracy: 0.1° (instrument-based)
  • Models: conic sectionpolynomialcircleYoung-Laplaceheight-width
  • Types: advancingrecedingstaticdynamictilting

Pendant drop/rising drop
  • Results: surface tensioninterfacial tension
  • Range: 0.01 to 2000 mN/m (software-based)
  • Resolution: 0.01 mN/m (software-based)
  • Models: Young-Laplace
  • Types: staticdynamic

Constrained Sessile Drop
  • Results: surface tension
  • Range: 0.01 to 2000 mN/m (software-based)
  • Resolution: 0.01 mN/m (software-based)
  • Models: Young-Laplace

Sample dimensions
  • Maximum sample space: 320 mm × ∞ × 275 mm (W × D × H (without axes))

Instrument dimensions
  • Footprint: 555 mm × 375 mm (W × D)
  • Height: 490 mm
  • Weight (without accessories): 24 kg

Environment
  • Operating temperature: 10 to 40 °C
  • Humidity: without condensation

Interfaces
  • PC: USB 3.0

Housing and peripherals
  • Compartment: test liquids protected against light
  • Needle protection shield: yes
  • Camera und optics housing: yes
  • Levelling: yes

Power supply
  • Voltage: 88 to 264 V
  • Power consumption: 100 W
  • Frequency: 50 to 60 Hz

Temperature measurement
  • Range: -50 to 400 °C
  • Resolution: 0.1 °C
  • Precision: ±0.1 °C
  • Accuracy: 1/3 DIN B (±0.1 °C at 0 °C to ±0.8 °C at 400 °C)

Temperature control
  • Equipment: Optional:- temperature-controlled sample stage- chamber- cuvette
  • Type of temperature control: liquidliquid (large)Peltierelectrical
  • Range of temperature control: liquid: 5 to 90 °Cliquid (large): -10 to 130 °CPeltier: -30 to 160 °Celectrical: 50 to 400 °C
  • Maximum sample space: 132 mm × 132 mm × 27 mm (W × D × H) (Large liquid chamber)
  • Resolution: 0.1 °C
  • Flow-through thermostat: with liquid
  • Inert gas: yes

FAQ - Drop Shape Analyzer – DSA100S – Krüss

What are the key features of the Drop Shape Analyzer - DSA100S?

The DSA100S is a semi-automatic, advanced drop shape analyzer designed for both static and dynamic contact angle measurements to evaluate surface wettability through surface free energy determination. It features software-controlled dosing, a high-resolution camera, and a comprehensive suite of analysis options for reliable quality assurance and optimization of surface treatments and coatings. Accessories for one-click SFE measurement and high-temperature analysis expand its applicability further.

What type of measurements can the DSA100S perform?

The DSA100S is capable of performing various measurements including static and dynamic contact angles, surface free energy of solids, pendant and rising drop analysis for surface and interfacial tension, and more. It utilizes advanced measuring methods such as analyzing contact angles with a gas bubble and for two drops dosed in parallel.

Can the DSA100S be used for high-temperature applications?

Yes, the DSA100S has optional accessories enabling specialized analysis at elevated temperatures. This makes it suitable for a wide range of applications, including the evaluation of material wettability and the efficiency of coatings under controlled temperature conditions.

What is the resolution and speed of the syringe dosing system in the DSA100S?

The syringe dosing system of the DSA100S offers a resolution of 20 nL and a dosing speed range of 0.004 to 25 µL/s. This precision ensures accurate and reproducible dosing for all measurements.

How does the DSA100S ensure the accuracy and reproducibility of measurements?

The DSA100S incorporates a robust design to minimize vibrations, software-controlled dosing for precision liquid handling, and a high-resolution camera coupled with quality optics. These features, along with the advanced ADVANCE software, ensure precise, user-independent results that are both accurate and reproducible.

Is the DSA100S compatible with various surface types for analysis?

Yes, the DSA100S is designed for the analysis of a wide range of materials, including plastics, glass, ceramics, and metals. It is highly versatile and can be used to understand the wettability of various surfaces, making it an ideal solution for industries that work with diverse materials.

What software does the DSA100S use for analysis, and is it available in multiple languages?

The DSA100S utilizes the ADVANCE software for its operations, which supports a broad array of analysis modules and features. The software is available in multiple languages, including Chinese (simplified), English, French, German, Japanese, Korean, Portuguese, Russian, and Spanish, facilitating global usability.

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