4.5
PERFORMANCE CHARACTERISTICS
The FC400P de tec tor, with its base, forms an ad dress able de tec tor which trans -
mits sig nals rep re sent ing the de tec tor dig i tal cur rent lev els to a re mote con trol
unit.The con trol unit eval u ates these sig nals against pre-de ter mined cri te ria and
de cides when an alarm con di tion has oc curred. The in for ma tion given be low there -
fore re lates to the per for mance of the as a trans ducer only, since the sys tem alarm
re sponse is de ter mined by the con trol unit.
4.5.1 RESPONSE TO SMOKE
The re sponse of an op ti cal smoke de tec tor is nor mally mea sured with ref er ence to
the obscuration pro duced by smoke.Obscuration is mea sured in per cent per
metre, or in dB per metre.The lat ter unit is used in EN54-7 and is des ig nated ‘m’.
Un for tu nately, there is no fixed re la tion ship be tween op ti cal scat ter ing and
obscuration, the ra tio be tween them be ing de pend ent on the type of smoke. For
con ve nience, ‘grey’ smoke is nor mally used but white and black smokes give more
or less scat tered light re spec tively for a given obscuration level.The work ing of the
FC400P is a lin ear func tion of obscuration for a given type of smoke as shown
graph i cally in Fig. 6.
5
DETECTOR ADDRESS
The loop ad dress of the de tec tor is held in in ter nal E
2
PROM which is pro grammed
from the FC490ST Loop Ser vice Tool.
6
ADDRESS FLAG
Re fer to Fig. 7. The ad dress flag is used to iden tify the ad dress and zone of the de -
tec tor.The ad dress flags are sup plied in a packs (ad dress 1 - 255, with a dif fer ent
col our for each loop) and are or dered sep a rately from the de tec tor.The ad dress
flag is fit ted to the bot tom of the de tec tor. When the de tec tor is fit ted to the base
and turned un til fully lo cated’ the ad dress flag is then trans ferred to the base.If the
de tec tor is re moved from the base, the ad dress flag re mains with the base.
7
ORDERING INFORMATION
FC400P Photo Smoke.
5B 5” Uni ver sal Base.
FC450IB 5” Iso la tor Base.
8
RECYCLING INFORMATION
Cus tom ers are rec om mended to dis pose of their used equipments (pan els, de tec -
tors, si rens, and other de vices) in an en vi ron men tally sound man ner. Po ten tial
meth ods in clude re use of parts or whole prod ucts and re cy cling of prod ucts, com -
po nents, and/or ma te ri als.
9
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT
(WEEE) DIRECTIVE
In the Eu ro pean Un ion, this la bel in di cates that this prod uct should
NOT be dis posed of with house hold waste. It should be de pos ited at
an ap pro pri ate fa cil ity to en able re cov ery and re cy cling.
The ma nu fac tu rer re ser ves the right to chan ge the tec hni cal spe ci fi ca tions of this
pro duct wit ho ut prior no ti ce.
OSCURAMENTO : m-VALORE
OBSCURATION : m-VALUE
FUNZIONAMENTO DELL’USCITA(BITS)
WORKING OUTPUT (BITS)
FIG.6
Graph FC400P
INCAVI DI BLOCCAGGIO
RETAINING DEPRESSIONS
RIENTRANZA DI MONTAGGIO
MOUNTING RECESS
PARTE SAGOMATA A ´D`
´D` SHAPED PART
CANALE SAGOMATO A ´U`
´U` SHAPED CHANNEL
SPORGENZE DI BLOCCAGGIO
RETAINING PIMPLES
FIG.7
Fit ting Ad dress La bel Car rier
FIG.5
Over all Di men sions of FC400P De tec tor
Содержание FireClass FC400P
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