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DSA100L – Drop Shape Analyzer

Automatic wettability analysis of large surfaces

The Large version of the DSA100 Drop Shape Analyzer is prepared for automated wettability analysis by means of the contact angle or even the surface free energy. Fitted in a particularly wide frame and equipped with a large, rotating sample table plus an extra-long movement axis, the instrument can handle samples of an area of up to 500 × 500 mm.

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  • Characterization of large pre-treated or coated surfaces
  • Investigation of the cleanliness of windows and frames
  • Surface analysis for monitors and touch panels
  • Characterization of automobile parts before coating or bonding
  • Hydrophobicity analysis of ceramic tiles

MEASURING METHODS

  • Contact angle of a drop on a solid surface
  • Automated position-dependent contact angle measurement and evaluation
  • Surface free energy of a solid using contact angle data
  • Carrying out a measurement up to 20 consecutive times and displaying the results together
  • Contact angles of two drops dosed in parallel
  • Contact angle using a gas bubble beneath a solid surface in a liquid
  • Surface tension using the curvature of a perfectly symmetrical drop on a circular sample pedestal
  • Remote control of ADVANCE for integration in custom-designed, complex automations

INSTRUMENT DIMENSIONS

Footprint 1000 mm × 375 mm (W × D)
Height 490 mm
Weight (without accessories) 34 kg

TEMPERATURE MEASUREMENT

Range of temperature measurement -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)
Location of temperature measurement environment air
External sensor 2 connectors (PT100)

POWER SUPPLY

Voltage 88 to 264 VAC
Power consumption 100 W
Frequency 50 to 60 Hz

SAMPLE DIMENSIONS

Maximum sample size 700 mm × ∞ × 275 mm (W × D × H) (without axes)
Maximum measuring surface 500 mm × 500 mm (W × D)

ENVIRONMENT

Operating temperature 10 to 40 °C
Humidity without condensation

TEMPERATURE CONTROL

Equipment –
Type of temperature control –
Range of temperature control –
Maximum sample space –
Resolution –
Flow-through thermostat –
Inert gas –

INTERFACES

PC USB 3.0

HOUSING AND PERIPHERALS

Compartment test liquids protected against light
Needle protection shield yes
Camera und optics housing yes
Control keyboard PC keyboard for ADVANCE software operation available (KB20)
Levelling yes

SOFTWARE

Software type ADVANCE
Available software modules contact angle
surface free energy of solids
interfacial and surface tension of liquids
Adhesion Analysis
Remote Control API

SURFACE FREE ENERGY OF SOLIDS

Available included
Results surface free energy (SFE)
Models equation of state
Zisman
Fowkes
Wu
Owens-Wendt-Rabel-Kaelble
extended Fowkes
acid-base theory

CAPTIVE BUBBLE

Available included
Results contact angle (CA)
Range 0 to 180° (software-based)
Resolution 0.01° (software-based)
Accuracy 0.1° (instrument-based)
Models conic section
polynom
circle
Young-Laplace
height-width
Type advancing
receding
static
dynamic
tilting
(additional accessories may be required)

SESSILE DROP

Available included
Results contact angle (CA)
Range 0 to 180° (software-based)
Resolution 0.01° (software-based)
Accuracy 0.1° (instrument-based)
Models conic section
polynom
circle
Young-Laplace
height-width
Type advancing
receding
static
dynamic
tilting
(additional accessories may be required)

PENDANT DROP/RISING DROP

Available included
Results interfacial tension (IFT)/surface tension (SFT)
Range 0.01 to 2000 mN/m (software-based)
Resolution 0.01 mN/m (software-based)
Models Young-Laplace
Types (Pendant drop/Rising drop) static, dynamic

CAMERA SYSTEM (STANDARD)

Type Camera CF04
Connection USB 3.0
Resolution 1920 × 1200 px
Frame rate 2300 fps
Dark noise 7 electrons
Dynamic range 73 dB

ILLUMINATION

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

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

CAMERA SYSTEM (OPTIONAL)

Type High Speed Camera CF06
Connection USB 3.0
Resolution 640 × 480 px
Frame rate 3400 fps
Dark noise 10.5 electrons
Dynamic range 56.6 dB

DOSING SYSTEM

Dosing software-controlled
Drop deposition software-controlled
Cartridge/syringe (volume) glass (450 μL), disposable (900 μL)
Resolution 0.1 μL
Speed 0.02 to 25 µL/s

STAGES

Control y-axis: software-controlled
z-axis: manual
z-axis (optional): software-controlled
rotation axis: software-controlled
Range y-axis: 350 mm
z-axis manual: 45 mm
z-axis software-controlled (optional): 38 mm
rotation axis: 360°
Length –
Resolution y-axis: 10 μm
z-axis manual: 16 mm/turn
z-axis software-controlled (optional): 10 μm
rotation axis: 0.1°
Accuracy y-axis: 100 μm
z-axis manual: –
z-axis software-controlled (optional): 100 μm
rotation axis: 1°

OPTICS (OPTIONAL)

Focus manual
Zoom 7× zoom, manual
View angle ±4°
Field of view CF06: 1.7 mm × 1.3 mm to 10.8 mm × 8.1 mm
Resolution of optics CF06: 2.5 to 17.8 μm

DOUBLE PRESSURE DOSING SYSTEM (OPTIONAL)

Drop deposition software-controlled
Cartridge, volume disposable (1 mL)
Resolution 0.1 μL
Speed fixed

TILTING (OPTIONAL)

Types –
Control –
Range –
Resolution –
Accuracy –

DOUBLE PRESSURE DOSING SYSTEM

Drop deposition –
Cartridge, volume –
Resolution –
Speed –

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