Brochure

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Brightness sensors
Mounting guidelines for brightness sensors
• Make sure that the brightness sensor measures only
indirect, reflected light; direct sunlight distorts the
measurement results
• Avoid shiny surfaces that are highly reflective,
as this interferes with measurement
• Avoid surfaces that are too dark with low light
reflection properties, as this impedes measurement
of the current brightness level
• Keep in mind that thermal protection glass can
influence the daylight measurement; the tripping
value will be lower