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DataPhysics Instruments GmbH
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  5. Model OCA 25 - Standard Contact Angle ...

Model OCA 25 -Standard Contact Angle Meter

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The OCA 25 standard model is the all-purpose system for contact angle measurements and drop shape analysis. The high-performance camera makes it possible to measure contact angles even on adsorbent surfaces such as tissues or powders. Compared to the entry-level OCA 15EC, additional measurements at higher temperatures of up to 700 °C are possible. Further advantages are the more precise positioning of the sample table as well as the compatibility with many more dosing systems, which allow electronic dosing and droplet volumes down to a minimum of ten nanolitres.
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  • static contact angle (sessile drop method, captive bubble method, sessile drop in top view)
  • dynamic contact angle (roll-off contact angle and needle-in method)
  • analysis of interfacial and surface tension with dispersive and polar parts (pendant drop method)
  • analysis of surface energy with dispersive and polar parts (sessile drop method; manual measuring procedure with several test liquids)
  • analysis of the viscoelastic modulus (oscillating drop method)
  • analysis of the work of adhesion
  • sample table manually adjustable in all three directions with high-precision mechanics
  • high-performance camera with up to 3250 frames/s and USB 3 interface
  • fast lens with 6,5-fold zoom
  • stepless manual focus and manually adjustable observation angle
  • LED-lighting with manual and software-controlled intensity including automatic temperature drift compensation

 

  • compatible with the SD-DM single direct dosing system with one electronic syringe module
  • compatible with the DD-DM double direct dosing system with up to two electronic syringe modules
  • compatible with electronic multiple direct dosing systems DDE with up to four electronic syringe modules
  • compatible with the nanolitre dosing system, which can dose drops with a minimum volume of 10 nanolitres
  • compatible with FDDS Flexdrop dosing system, which can dose two drops simultaneously with a minimum volume of 25 picolitre

 

  • upgradeable with different environmental chambers for measuring at temperatures ranging from -30 °C to 700 °C
  • upgradeable with the TVS TopView Video System, which allows the measurement of contact angles in indentations
  • upgradeable with the manual tilting table TBA 360 and the electronic tilting unit TBU 100
  • upgradeable with a humidity generator of the HGC series from DataPhysics Instruments
  • upgradeable with the external TP 50 control panel with touch screen and precision control wheel