Ultraviolet monitoring systems, methods, and devices
AssigneeOy Halton Group Ltd.
InventorsAndrey V. LIVCHAK, Chester RACZEWSKI
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Abstract
In embodiments, a control system for a UV air treatment system, especially one used for cleaning a fume stream such as in a kitchen exhaust system, detects a need for cleaning maintenance on the UV light source based on changes in light intensity. The system further detects the light intensity each time the UV light source is cleaned to determine if the drop in intensity after cleaning indicates that the UV light source should be replaced. The cleaning and replacement requirements are indicated automatically by a user interface.
Claims21
1-33. (canceled)
A method of maintaining an ultra-violet air treatment system, the method comprising:
- detecting light output from an ultraviolet light source at multiple points in time;
- from a first trend in the data, the data representing multiple instances of the detecting light, determining a required first maintenance action to elevate the light output from the light source and outputting an indication of the required maintenance action;
- detecting a performance of the first maintenance action;
- and
- from a second trend in the data representing multiple instances of the detecting light in combination with the detecting a performance of the first maintenance action, determining a required second maintenance action and outputting an indication of a need for the second maintenance action responsively thereto.
A method of maintaining an ultra-violet air treatment system, the method comprising:
- detecting light output from an ultraviolet light source at multiple points in time;
- when the light output drops to a first level, outputting an indication that the ultraviolet light source needs to be cleaned;
- and
- in response to a detection that the ultraviolet light source has been cleaned and a detection of a light output below a second level at a time approximately contemporaneous with the detection that the ultraviolet light source has been cleaned, outputting an indication that the ultraviolet light source needs to be changed.
Dependencies are inferred from the claim text.