TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook MultiFlame DF-TV7, Operating Manual

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MULTIFLAME DF-TV7
OPTICAL FLAME DETECTOR
OPERATING MANUAL
NOSP17662
Revision 03
15
4 Installation
The detector must be installed in accordance with its certification and with the
standards of the appropriate authority in the country concerned.
4.1 Location
The detector should be positioned above the targeted danger zone and at a distance
corresponding to the type of fire it has to detect.
Be aware of potential radiation sources as these may trigger a false alarm. If possible, install the
detector in clean zone, sheltered from major vibrations. For maximum effectiveness, avoid
exposing the head of sensor to alternation of light and shade (passing vehicles, tree branches…).
IR sources (particularly if modulated) like hot machinery, exhaust outlets, etc. may also de-
sensitize the detector, masking the radiation from a small fire.
For detectors using the UV wavelength:
Do not position the detector behind a glass window as this blocks UV radiation.
Locations where smoke, gas or vapours capable of absorbing UV radiation could
accumulate (e.g. ceilings) should be avoided as well.
Detector fields of vision may be overlapped, particularly if the devices are used in a voting
configuration.
The detector should have a direct line-of-sight to the potential fire source. Partial obstruction may
reduce detection rate.
For an inclination of 10°, there is
a semicircle blind zone, directly
below the detector, with a radius
of 0.8 times the detector height.
With this angle, the optical axis
“touch” the ground at a distance
of 5.7 times the height.