Drop Shape Analyzer – DSA25E – Krüss

Drop Shape Analyzer – DSA25E – Krüss

Expert Configuration for Precise Wettability and Surface Tension Analysis

The DSA25 Drop Shape Analyzer in its Expert configuration offers a sophisticated solution for determining the wettability of solids through the measurement of contact angle and the surface tension of liquids, including coatings and adhesives. This instrument combines speed with a range of evaluation options, providing quick feedback on pretreatment processes in quality control and enabling an accurate assessment of adhesion outcomes.

Versatile Applications Across Industries

From quality assurance of activation processes like plasma, flame, or corona treatment to evaluating the wettability of diverse materials such as plastics, glass, ceramics, metals, and more, the DSA25E is essential. It proves instrumental in testing hydrophobic coatings, analyzing adhesion properties of coating liquids and adhesives, and many more applications pertinent to ensuring long-term stability and efficacy of coatings.

Advanced Measuring Methods for Comprehensive Analysis

The instrument utilizes various measuring methods, including contact angle measurements on solid surfaces, roll-off behavior analysis, and advanced surface free energy calculations. These methods are crucial for a wide range of research and industrial applications, providing essential data for improving product quality and performance.

Technical Specifications
Dosing System
  • Syringe Dosing: 1 × software-controlled
  • Liquid Needle double pressure dosing: 1 × included
  • Drop deposition (syringe dosing): manual
  • Syringes, volume: glass (2× 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: 6.5× zoom, manual
  • View angle: ±3°
  • Field of view: CF04: 3.2 mm × 3.2 mm to 18.5 mm × 18.5 mm
  • Resolution of optics: CF04: 2.5 to 16.2 μm
Illumination
  • Types: high power monochromatic LED
  • Wave length, dominant: 470 nm
  • Field of light: Ø 42 mm
Stages
  • Control: z-axis: manual (movable in x- and y-direction)
  • Length: z-axis: 45 mm
Liquid Needle pressure dosing system
  • Included in setup: yes
  • 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: 6.5× zoom, manual
  • View angle: ±3°
  • 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: external tilting table
  • Control: software-controlled
  • Range: 0 to 90°
  • Resolution: 0.01°
  • Accuracy: 0.5°
Optics with extender lense (optional)
  • Zoom: 2× magnification, fixed
  • Field of view: with CF04: 1.5 × 1.5 to 10.1 × 10.1 mmwith CF10: 2.7 × 2.1 to 18.0 × 14.2 mm
  • Resolution: with CF04: 1.3 to 8.4 μmwith CF10: 1.0 to 7.0 μm
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 (recommended)- 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: 65 μm, 40 μm (with optional extender)
  • 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 × ∞ × 165 mm (W × D × H (without axes))
Instrument dimensions
  • Footprint: 610 mm × 250 mm (W × D)
  • Height: 430 mm
  • Weight (without accessories): 10 kg
Environment
  • Operating temperature: 10 to 40 °C
  • Humidity: without condensation
Interfaces
  • PC: USB 3.0
Housing and peripherals
  • 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)
  • Locations: sample stagechambercuvette
  • External sensor: 2 connectors (PT100)
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 – DSA25E – Krüss

What is the purpose of the DSA25E Drop Shape Analyzer?

The DSA25E Drop Shape Analyzer is designed for precise wettability and surface tension analysis. It measures the contact angle to determine the wettability of solid surfaces and the surface tension of liquids, which is essential for understanding the quality of coatings, adhesives, and the effectiveness of pretreatment processes.

Which industries can benefit from the DSA25E?

This instrument has versatile applications across various industries. It is ideal for quality assurance in processes such as plasma, flame, or corona treatments, and for evaluating the wettability of materials like plastics, glass, ceramics, metals, and more. It also finds applications in testing hydrophobic coatings and analyzing the adhesion properties of coating liquids and adhesives, ensuring long-term stability and effectiveness of products.

What advanced measuring methods does the DSA25E offer?

The DSA25E utilizes several advanced measuring methods, including contact angle measurements, roll-off behavior analysis, and surface free energy calculations. These methods are crucial for a comprehensive analysis of product quality and performance in both research and industrial applications.

What are the main features of the DSA25E's camera and dosing system?

The standard camera system of the DSA25E features a Camera CF04 with USB 3.0 connection, 1920 x 1200 px resolution, and a frame rate of 2300 fps. The dosing system includes syringe dosing with a resolution of 20 nL and speed ranging from 0.004 to 25 µL/s, along with a liquid needle double pressure dosing system for precise liquid handling.

Can the DSA25E's measuring capabilities be enhanced with additional equipment?

Yes, the DSA25E offers optional equipment that enhances its capabilities, including a high-speed 5 megapixel camera (CF10), a tilting table for tilt angle measurements, and optics with an extender lens for detailed analysis. These optional features allow for a more comprehensive analysis suitable for advanced research needs.

Is the DSA25E software multilingual?

Yes, the ADVANCE software that comes with the DSA25E is available in multiple languages, including Chinese (simplified), English, French, German, Japanese, Korean, Portuguese, Russian, and Spanish, making it accessible for a wide range of users worldwide.

What are the environmental and power requirements for the DSA25E?

The Drop Shape Analyzer operates optimally at temperatures between 10 to 40°C and requires a humidity level without condensation. Its power supply needs are 88 to 264 V with a consumption of 100 W, and it supports a frequency range of 50 to 60 Hz, accommodating a variety of laboratory environments and international power standards.

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