System for measuring optical flow of fluid such as gas in fluid container, has flow cell latch unit which is connected with latch unit of measuring arrangement by lock, such that optical measuring section is fixed in beam gears

摘要

An optical flow cell has a measuring chamber (12) with an aperture by which the sample fluid is provided in and/or leak out. The measuring windows (16) are provided between the optical measuring sections. A measuring arrangement has a light source (32) and optical detector (42) extended between light guidance units (34,36,38,40) containing measuring beam gears. The flow cell latch unit (18') is connected with corresponding latch unit (64') of measuring arrangement by lock, such that the optical measuring section is fixed in measuring beam gears in connected state. An independent claim is included for fluid container.