| 摘要 |
A photoelectric bin level sensor comprising a housing from which projects a source probe and a detector probe, the source probe and the detector probe both are bent at an angle of approximately 100 degrees so as to point substantially downward. Said probes project from the housing and are located closely adjacent to the lower edge thereof so that probes can be conveniently passed through two holes drilled in a wall of a particulate matter storage tank.
|
