MODEL display cases LEAK FOR RESEARCH COLD AIR

摘要

The invention relates to a technique of testing devices, particularly display cases, and can be used to investigate the leakage of cold air from the walk-in process windows. To a display parallel to the side walls set on the vertical rack sliders. The slider of one rack is mounted a light source in the other slider rack mounted amplifier and photocell microvoltmeter. Parallel to the back wall mounted vertical manifold with evenly spaced therealong horizontal pipes supplying smoke. For the collector is connected smoke generator. 5 ZP f ly-2-yl.