Fire Fighting Enterprises Talentum IR3 Flame Detector - Manual (Page 4)

4
CENELEC / IEC
Ga Ex ia IIC T4
Table 2 Type of Protection Codes Table 3 Temperature Classification
Table 4 Subdivisions of Group II Gases
Temperature
Class
Referred to
ambient of
-20°C to +40°C
Maximum
Surface
Temperature
T6 85°C
T5 100°C
T4 135°C
T3 200°C
T2 300°C
T1 450°C
Detectors approved to T4 at 40°C
Code
Type of
Protection Code Equipment
Category
ia Intrinsic safety 1
ib Intrinsic safety 2
d Flameproof 2
These Flame Detectors are approved ia.
Gas Group Representative Gas Other Gases, Liquids, Vapours
IIC Hydrogen Acetylene, Carbon Disulphide
IIB Ethylene Diethyl ether, Tetrafluoroethylene
IIA Methane Butane, Methanol, Petroleum, Propane, Styrene
These Flame Detectors are approved IIC for listed gases in EN 60079-0.
Equipment
Protection
Level (EPL)
[See EN60079-26]
Explosion Protection
symbol
13
IS System Drawing
Hazardous Area
2
1
-
+
Flame Detector
Safe Area
i
+
-
-
24V DC Normal
(Break supply to reset
if detector set to latch)
i = See detector data
sheet for details
-
+
24V DC Normal
(Break supply to reset
if detector set to latch)
Zone
Fault
Relay
Fire
Relay
2
1
-
+
Flame Detector
6
5
7
8
Fault
Relay
Fire
Relay
2
1
-
+
Flame Detector
6
5
7
8
EO
L
Refer to note 6
Barrier
(2 channel)
+
-
-
+
NOTE 1
Each Barrier fed circuit must be a separate circuit and
must not be connected with any other electrical circuit.
NOTE 2
The electrical circuit in the hazardous area must be
capable of withstanding a test voltage of 500 VAC to
earth for 1 minute.
NOTE 3
The installation must comply with EN 60079-14:2003
Barrier
+
-
+
NOTE 5
The cable may be separate cables or a twin pair
contained in a type ‘A’ or a type ‘B’ multicore cable (as
defined in clause 8 of EN60079-25).
Baseefa Certificate Related Drawing
No modifications permitted without the
approval of the Technical Director
Safe Area Apparatus
The barriers and isolators are to be
supplied from apparatus which is
unspecified except that it must not
be supplied from nor contain in
normal or abnormal conditions a
source of potential with respect to
earth in excess of 253 volts r.m.s. or
253 volts d.c.
NOTE 6
If required a loading resistor having a surface area
greater than 20mm² may be connected in the fault relay
circuit circuits.
Detector Input Parameters
Terminal 1 with respect to terminal 2
Terminal 3 with respect to terminal 4
Ui = 30V
Ii = 100mA
Pi = 0.65W
Ci = 0.03µF
Li = 0
Terminal 5 with respect to terminal 6
Terminal 7 with respect to terminal 8
Ui = 30V
Ii = 100mA Talentum Developments Ltd
www.Talentum.co.uk
Title: - 016XXX Series I.S. System Drawing
Rev: A Drawn by: J.A.B. Checked by: J.P 17/04/08
Drawing number: A4/1468/07 Sheet 1 of 2