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SPECTRAL RESPONSE vs LIGHT SOURCES
UV4
SH
sensitivity is restricted to a very narrow region of ultraviolet rays, and exhibits no response at all in the visible
region. Gas and oil flames produces radiation that can be easily detected by UV4
SH
. The following diagram shows
spectral response of UV4
SH
and spectral emission for flames, sunlight and lamps.
SENSITIVITY vs SUPPLY VOLTAGE
The flame detector increase his sensitivity with higher operating voltages, the relationship is shown in the above
diagram. It's very important to keep the applied voltage within the recommended range to avoid malfunctions and
damages.
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