Process sensor assembly and sensor mount

A process sensor mount for placement in a free flowing stream of particulate material, comprising:

• an open-ended housing disposed about a generally vertical axis having an open passage for passage of particulate material and defining a sensing chamber;
• an inlet nozzle connected to the upper end of the housing and comprising an upwardly open single dimension restriction device to intercept particulate matter from a single vertical plane and channel it to the sensing chamber;
• a discharge nozzle connected to the lower end of the housing and comprising an upwardly open single dimension restriction device orientated 90° from the device of the inlet nozzle, to restrict flow of particulate material from the sensing chamber in a single vertical plane that is perpendicular to the vertical plane referenced by the inlet nozzle;
• said discharge nozzle having a discharge opening for discharge of particulate material from the housing.

A process sensor assembly for installation in a duct containing a free-flowing stream of particulate material comprising:

• an open-ended sensor housing having first and second opposite and parallel walls, and third and fourth opposite and parallel vertical walls in perpendicular relationship to the first and second walls, defining a vertical passage and a sensing chamber having a uniform cross-section;
• an inlet nozzle connected to the top of the housing comprising a single dimensional upwardly open restriction device to intercept a sample of passing particulate material from the process stream from a single vertical collection plane and channel it through the sensing chamber, said inlet nozzle including first and second opposite top flow deflectors that are connected to the upper edges of the third and fourth housing walls and are upwardly divergent from one another in order to collect said sample of particulate material from the vertical collection plane;
• said housing having a discharge opening from the sensing chamber;
• and
• process sensor means connected to the housing to detect a material property of the particulate material passing through the sensing chamber.