| 摘要 |
PURPOSE:To find leakage at a glance by placing a detection plate where a material, which changes in color in contact with a drop of a liquid, and is spread and stuck closely to a liquid level indicator. CONSTITUTION:A front hood 10 and a lighting device 11 fitted to a glass liquid level indicator are utilized, and a cut is made where leakage occurs easily. To this cut part, a detection plate 15 made of transparent glass 13 having silica gel spread and stuck on one side is fitted with the silica gel side facing a glass liquid level indicator side. If a liquid in the liquid level indicator leaks, a drop of the liquid comes into contact with the silica gel 12 applied on the transparent glass 12, so the silica gel 12 changes in color, so that the leakage is found easily through the transparent glass 13. |
