Installation; Location - Simtronics MultiFlame DF-TV7-T Operating Manual

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 have to detect.
Be aware of potential radiation sources as these may trigger a false alarm. If possible, put
the detector in clean zone, sheltered from major vibrations. For maximum effectiveness,
avoid to expose 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.
MultiFlame DF-TV7 Page 17 / 56 NOSP16358-03 [04/2016]