The<b>&nbsp;video-based optical contact angle measuring system</b>, OCA 25, is our most versatile instrument for the measurement and&nbsp;<b>analysis of contact angle and drop shape</b>. The OCA 25 is available in the variants: OCA 25L, and OCA 25LHT.&nbsp;
<b>Features of the basic instrument configuration:<br /></b>
<ul><li>Sample table with manual adjustment in three axes, via high-precision mechanics, for the precise and accurate positioning of the sample.</li><li>High performance 6x parfocal zoom lens with integrated continuous fine focus, and adjustable observation and camera tilt angle.</li><li>Video measuring system with high-resolution USB camera (max. 123 images/s sample rate).</li><li>Lighting of the optical path with software controlled intensity adjustment, without hysteresis.</li><li>Max. sample dimensions (L x W x H):&nbsp;<ul><li><strong>OCA 25</strong>: 220 x ¤&nbsp;x 70 mm.</li><li><strong>OCA 25L</strong>: 330 x ¤&nbsp;x 70 mm.</li><li><strong>OCA 25LHT</strong>:330 x ¤&nbsp;x 70 mm, HTFQ 1200 or HTFC 1800.</li></ul></li></ul>
<br /><b>Optional OCA accessories:<br /></b>Some of the most important components and accessories are listed below:&nbsp;
<ul><li>High-speed option for USB camera (max. 215 or 311 images/s sample rate), High-speed video system UpHSV1220 (max. 1220 images/s sample rate), or UpHSV3000 (sample rate 3000 images/s).</li><li>Software controlled electronic multiple dosing systems, E-MDr, for the precise automatic positioning of up to six dosing needles.</li><li>Direct dosing system, SD-DM, DD-DM, SD-DE or DDE/x,</li><li>Up to six electronic syringe units, ESr, with precise adjustable dosing volume (min. 50 nl) and dosing speed (0.06 µl/s…26.4 µl/s).</li><li>Electronic tilting base unit, TBU 95, for a maximum tilt angle of 90° and manual tilting base attachment, TBA 60M, for a maximum tilt angle of 70°.</li><li>Electronic turn table with vacuum fixation, ETTr/VAC, with wide range of top plates.</li><li>Temperature and environmental control systems (-30…1800 °C und 1 mPa… 5·10<sup>6</sup>&nbsp;Pa).</li><li>Wide range of sample holding and positioning units. Inc holders for foils or papers, FSH 30 and FSC 80/150, for single fibres, FHO 40plus, or the suction plate, SP 100, for holding thin flexible samples flat on the stage, with an adjustable suction area.</li><li>Oscillating drop generators, ODG 20 and ODG 20P, for the measurement of surface elasticities and for relaxational studies at phase boundaries.</li><li>Electro-wetting platform, EWP 100, for the analysis of sessile and pendant drops in an electrical field.</li><li>Top view video system, TV-VS, for the qualitative view and image capture of the of the drop position (USB camera with 52 images/s sample rate, 6x parfocal zoom lens and adjustable observation angle).</li><li>The available software modules for the OCA 25 are:<ul><li>SCA 20 — contact angle.</li><li>SCA 21 — surface free energy.</li><li>SCA 22 — pendant drop.</li><li>SCA 23 — lamella contour.</li><li>SCA 26 — oscillation / relaxation.</li></ul></li><p>&nbsp;</p></ul>
<link file:256 - download "Initiates file download">Data Sheet OCA 25</link>