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TVA100B – Top View Analyzer

Wetting measurements in depressions and on concave surfaces

The TVA100B Top View Analyzer is the only instrument in the world to use the top-view distance method for measuring the contact angel of a liquid on a solid from above. The innovative measuring method is particularly suitable for measurements in depressions and on concave surfaces where drops cannot be analyzed using the usual side view.

A further strength of the TVA100B lies in the especially high precision in the range of very low contact angles, which makes it an ideal tool for assessing the cleanliness of glass, for example.

  • Measurements in depressions of well plates and other regular and irregular depressions
  • Measurement between electronic components on populated circuit boards
  • Measurement on optical lenses
  • Surface investigations for the interior of tubes and hoses
  • Checking of cleaning procedures, especially for glass

MEASURING METHOD

  • Contact angle of a drop viewed from the top
  • Surface free energy of a solid using contact angle data

MEASURING RESULTS

  • Static contact angle
  • Surface free energy

INSTRUMENT DIMENSIONS

Footprint 610 mm × 250 mm (W × D)
Height 430 mm
Weight (without accessories) 10 kg

POWER SUPPLY

Voltage 12 V
Power consumption 40 W

SAMPLE DIMENSIONS

Maximum sample size 300 mm × ∞ × 50 mm (W × D × H)

ENVIRONMENT

Operating temperature 10 to 40 °C
Storage temperature -10 to 70 °C
Humidity without condensation

INTERFACES

PC USB 3.0

SOFTWARE

Software type ADVANCE
Available software modules contact angle
surface free energy of solids (optional)

SURFACE FREE ENERGY OF SOLIDS

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

SESSILE DROP

Results contact angle
Range 3.5 to 23° (±0.1°), 23 to 75° (±1°)
Models reflecting curve
Type static

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 LED illumination with manual dimmer

OPTICS (STANDARD)

Focus manual
Zoom 6.5× zoom, manual
Field of view CF04: 1.6 mm × 1.6 mm to 9.1 mm × 9.1 mm
Resolution of optics CF04: 1.2 μm

DOSING SYSTEM

Dosing electronic pipette
Drop deposition manual
Cartridge/syringe (volume) disposable tips (0.1 to 10 μL)

OPTICS (OPTIONAL)

Field of view