Fire Fighting Enterprises Talentum IR3 Flame Detector - Manual (Page 3)

10
Exd System Drawing
i
Refer to note 4
-
+
NOTE 3
The installation must comply with national installation
requirements (for example to EN 60079-14)
Hazardous Area
2
1
-
+
Flame Detector
Safe Area Safe Area Apparatus
Unspecified except that it
must not be supplied from
nor contain under normal or
abnormal conditions a source
of potential exceeding 250V
RMS or 250V DC with
respect to earth.
24V DC Normal
(Break supply to reset
if detector set to latch)
i = See detector data
sheet for details
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
24V DC Normal
(Break supply to reset
if detector set to latch)
Zone
No
Barriers
Required
+
-
-
+
NOTE 1
WARNING – Ensure ALL power is OFF before/during
installation/maintenance.
NOTE 2
Ensure the details on the enclosure label comply with
the hazardous area specified.
No
Barrier
Required
+
-
NOTE 4
If required a loading resistor or end of line device (EOL)
can be connected between the detector terminals of any
circuit. The total power dissipation and temperature
classes within the enclosure must not be exceeded,
30W – T4.
NOTE 5
The 24Vdc supply line to the detectors should be fused
at 1A.
+
-
-
+
3
Equipment Markings
ATEX
(EU Directive 94/9/EC)
II 2 G D
Equipment
Category
Definition – ATEX Equipment Group II
Zone
G - gas D - dust
1 - very high level of protection
in which explosive atmosphere mixtures of air gases,
vapours or mist are present continuously, for long
periods
0 20
2 - high level of protection
in which explosive atmosphere mixture of air and gases,
vapours or mist are likely to occur
1 21
3 - normal level of protection
in which explosive atmosphere mixtures of air and
gases, vapours or mist are unlikely to occur and if it
occurs it will exist only for a short period
2 22
These Flame Detectors are suitable for equipment categories 2 and 3, G or D.
Note: The detectors are not certified for category 1 areas, see ‘IS’ products.
Table 1 Equipment Categories and Type of Explosive Atmosphere (Group II)
CE Marking
&
Notified Body
Number
EU Explosive
Atmosphere
Symbol
Group II
1180