The easy-to-use manual instrument for changing contact angle tasks
The Basic configuration of the DSA25 Drop Shape Analyzer is suitable for accurate wetting measurements with a standard test liquid or sample liquid. The instrument is ideal for quick measurements of the static contact angle. It is mainly used for tasks that don’t require a high degree of standardization, i.e. wetting of different formulations of a coating liquid on different samples.
MEASURING METHODS
MEASURING RESULTS
INSTRUMENT DIMENSIONS
| Footprint | 610 mm × 250 mm (W × D) |
|---|---|
| Height | 430 mm |
| Weight (without accessories) | 10 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 | sample stage chamber cuvette |
| External sensor | 2 connectors (PT100) |
POWER SUPPLY
| Voltage | 88 to 264 VAC |
|---|---|
| Power consumption | 40 W |
| Frequency | 50 to 60 Hz |
SAMPLE DIMENSIONS
| Maximum sample size | 320 mm × ∞ × 165 mm (W × D × H) (without z-axes) |
|---|---|
| Maximum measuring surface | – |
ENVIRONMENT
| Operating temperature | 10 to 40 °C |
|---|---|
| Humidity | without condensation |
TEMPERATURE CONTROL
| Equipment | temperature-controlled sample stage chambers cuvette |
|---|---|
| Type of temperature control | liquid electrical Peltier |
| Range of temperature control | -30 (with Tempering Chamber – TC40) to 400 °C (with Tempering Chamber – TC21) |
| Maximum sample space | 132 mm × 132 mm × 27 mm (W × D × H) (with Tempering Chamber – TC11) |
| Resolution | 0.1 K |
| Flow-through thermostat | with liquid |
| Inert gas | yes |
INTERFACES
| PC | USB 3.0 |
|---|
HOUSING AND PERIPHERALS
| Compartment | – |
|---|---|
| Needle protection shield | – |
| Camera und optics housing | – |
| 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 | optional |
|---|---|
| Results | surface free energy (SFE) |
| Models | equation of state Zisman Fowkes Wu Owens-Wendt-Rabel-Kaelble Schultz-1 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 | optional |
|---|---|
| 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 | Ø 42 mm |
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 |
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 | manual |
|---|---|
| Drop deposition | manual |
| Cartridge/syringe (volume) | glass (500 μL), disposable (1 mL) |
| Resolution | – |
| Speed | – |
STAGES
| Control | z-axis: manual (movable in x- and y-direction) |
|---|---|
| Range | – |
| Length | z-axis: 45 mm |
| Resolution | – |
| Accuracy | – |
OPTICS (OPTIONAL)
| Focus | manual |
|---|---|
| Zoom | 6.5× zoom, manual |
| View angle | ±3° |
| Field of view | CF06: 1.4 mm × 1 mm to 8.1 mm × 6 mm |
| Resolution of optics | CF06: 2.1 to 13.3 μm |
DOUBLE PRESSURE DOSING SYSTEM (OPTIONAL)
| Drop deposition | software-controlled |
|---|---|
| Cartridge, volume | disposable (1 mL) |
| Resolution | 0.1 μL |
| Speed | fixed |
TILTING (OPTIONAL)
| Types | external tilting table |
|---|---|
| Control | software-controlled |
| Range | 0 to 90° |
| Resolution | 0.01° |
| Accuracy | 0.5° |
DOUBLE PRESSURE DOSING SYSTEM
| Drop deposition | – |
|---|---|
| Cartridge, volume | – |
| Resolution | – |
| Speed | – |
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
DROP SHAPE ANALYZER
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