4
Product application & Design information Doc. version 1.0 14 February 2012
FC400CH Addressable carbon mo heat detector
FireClass
4.5.1.2 EFFECT OF AIRFLOW ON SENSITIVITY
The signal status of the FC400CH detector has been specifically designed to be in-
sensitive to abnormal air velocities. The effect of normal air velocities upon sensi-
tivity is negligible.
4.5.1.3 EFFECT OF TEMPERATURE ON SENSITIVITY
The carbon monoxide detector incorporates temperature compensation and its
condition current will be substantially constant over its specified operating range.
4.5.1.4 EFFECT OF ATMOSPHERIC PRESSURE ON SENSITIVITY
The sensitivity of the detector is not effected by changes in atmospheric pressure
unless they happen very quickly ie explosions.
4.5.2 RESPONSE TO FIRE TESTS
The response of the FC400CH carbon monoxide detection element of the detector
to real or large-scale test fires will be dependent on the detection mode chosen
and the sensitivity set in the control unit.
Other factors however, such as the rate of development of the fire, and relative ox-
ygen supply are also important. The fire tests defined in prEN54 pt. 7 which are in-
tended for ionisation and optical detectors are less appropriate for carbon
monoxide fire detectors as their design means that they produce significant levels
of carbon monoxide only in their later stages.
However, the FC400CH using compensated carbon monoxide combined with
A1R heat (sensitivity High and Normal) mode, pass all tests laid down in prEN54 pt
7 including the fire tests.
4.5.3 HEAT DETECTOR
4.5.3.1 GENERAL
The performance of heat detectors is defined in European Standard prEN54-5.
5.
DETECTOR ADDRESS
The loop address of the detector is held in internal E
2
PROM which is pro-
grammed from the FC490ST Address Programmer.
+
Note: this device use one address only on the loop.
6.
ADDRESS FLAG
Refer to Fig.6. The address flag is used to identify the address and zone of the de-
tector.The address flags are supplied in one of two packs (address 1 - 127 or
128-255 , with a different colour for each loop) and are ordered separately from the
detector.The address flag is fitted to the bottom of the detector. When the detector
is fitted to the base and turned until fully located the address flag is then transferred
to the base. If the detector is removed from the base, the address flag remains with
the base.
7.
ORDERING INFORMATION
FC400CH Carbon Mo Heat detector.
Address Flag Labels - Loop A (White).
Address Flag Labels - Loop B (Yellow).
8.
RECYCLING INFORMATION
Customers are recommended to dispose of their used equipments (panels, detec-
tors, sirens, and other devices) in an environmentally sound manner. Potential
methods include reuse of parts or whole products and recycling of products, com-
ponents, and/or materials.
9.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
DIRECTIVE
In the European Union, this label indicates that this product should
NOT be disposed of with household waste. It should be deposited at
an appropriate facility to enable recovery and recycling.
The manufacturer reserves the right to change the technical specifications of this
product without prior notice.
4.
TECHNICAL SPECIFICATION
4.1 MECHANICAL
Dimensions:
The overall dimensions are shown in
Fig.5 ( less base ).
Materials
Body,cover, and closure:
FR110 ‘BAYBLEND’ flame retardant.
Weight
Detector:
0.088kg
De Base:
0.152kg
4.2 ENVIRONMENTAL
Temperature
Operating:
-0
o
C to +55
o
C
Storage:
-20
o
C to +55
o
C
+
The detector may be operated for short periods between the limits of 0
o
C to
-20
o
C but with reduced performance.
+
The detector may be operated for short periods between the 55
o
C to
+70
o
C, prolonged use between these limits will degrade the performance and
shorten the life of the detector.
Relative Humidity:
95% ( non-condensing )
Shock:
Vibration:
prEN54 Pts. 5 and 7
Impact:
Corrosion:
prEN54 Pts.5 and 7
The detectors comply with Lloyd’s Register Test Specification Number 1 (1996).
Environmental Category ENV2 plus Salt Mist test.
4.3
ELECTROMAGNETIC COMPATIBILITY
The detector complies with the following:
Ø
product family standard EN50130-4 in respect of Conducted Disturbances, Radi-
ated Immunity, Electrostatic Discharge, Fast Transients and Slow High Energy;
Ø
EN50081-1 for Emissions.
4.4
ELECTRICAL CHARACTERISTICS
The following characteristics (Table 1) apply at 25
o
C and nominal supply voltage of
37.5V
unless otherwise specified.
Table 1: Electrical Characteristics
Characteristic
Min.
Typ.
Max.
Unit
Loop Voltage
20.0
-
40
V
Quiescent Current
-
275
305
µA
Alarm Current*
3
3.3
mA
* No remote indicator fitted
Addressable circuit voltage:
40V dc max. with addressable waveform (polarity conscious).
4.5
PERFORMANCE CHARACTERISTICS
4.5.1 CARBON MONOXIDE
The FC400CH carbon monoxide sensing element with base, forms an address-
able detector which transmits, to remote equipment, signals representing the state
of the sensing cell. The control equipment evaluates these signals against prede-
termined criteria and decides when an alarm condition should be signalled.The in-
formation given below therefore relates to the performance of the carbon
monoxide element of the detector simply as a transducer, since the system alarm
response is determined by the control unit.
4.5.1.1 RESPONSE TO CARBON MONOXIDE
The response to carbon monoxide will vary from detector to detector. For this rea-
son each detector is characterised on manufacture and calibration values are
stored in the internal detector memory. The controller will then normalise the out-
put signal from the detector such that the output is equivalent to 2.5 bits/ppm car-
bon monoxide above a threshold of 20 bits. Carbon monoxide may be present in
some environments under certain circumstances (high values of pollution or ex-
treme environmental conditions). However, the deviation is unlikely to be signifi-
cant compared with the alarm threshold level.
