如有任何問題請與我司業務專員： How to use a Wet Film Wheel - Elcometer 3230 Wet Film Wheel ISO 2808-7B, BS 3900-C5 method 7B, ASTM D4414-A specify that the wet film wheel should be perpendicular to the substrate and the thickness of the coating should be stated as that indicated on the central wheel - ensuring that the wheel has been rolled from maximum thickness to minimum thickness - thus avoiding surface tension. Example Hold the wheel by its central spindle. Begin at maximum thickness to reduce risk of inaccuracy caused by surface tension. Roll the wheel through the wet film with the side 1 in the diagram touching the substrate. Roll for at least one whole turn and slowly enough for wetting to occur. Roll the wheel backwards by at least on complete turn. The wet film thickness is read from the scale, at the end of the wetted segment of the middle circle, 2 in the diagram To use wheel on pipes, measure across the longitudinal axis （lengthways） of the pipe. On rough surfaces, measurements will be made from the surface peaks and represent the minimum wet film thickness. Elcometer 3230 卷材涂料濕膜輪 0~50μm 0~100μm 5.0μm 0~300μm 15.0μm 0~2mils 0~4mils 0~12mils
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型號 分類 量程 分度 零件號 Elcometer 3230/17 Elcometer 3230 濕膜輪-卷材涂料 Elcometer 3230/18 Elcometer 3230 濕膜輪-卷材涂料 Elcometer 3230/19 Elcometer 3230 濕膜輪-卷材涂料 Elcometer 3230/17a Elcometer 3230 濕膜輪-卷材涂料 Elcometer 3230/18a Elcometer 3230 濕膜輪-卷材涂料 Elcometer 3230/19a Elcometer 3230 濕膜輪-卷材涂料 附件 50cm（19″）濕膜輪手柄 100cm（39″）濕膜輪手柄
沿濕膜滾動濕膜輪，中心輪濕潤部分末端的讀數即為濕膜厚度。
如果知道涂層的干、濕比率，便可通過濕膜厚度計算干膜厚度。
