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

4
CENELEC / IEC
Ex d IIC T4 Gb
Table 2 Type of Protection Codes Table 3 Temperature Classification
Table 4 Subdivisions of Group II Gases
Ex tb IIIC T135°C Db
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.
Code
Type of
Protection Code Equipment
Category
ia Intrinsic safety 1
ib Intrinsic safety 2
d Flameproof 2
These Flame Detectors are approved ‘d’.
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.
Dust Group
IIIC Conductive Dust
IIIB Non-conductive Dust
IIIA Combustible Flyings
Equipment
Protection
Level
Gas (EPL)
[See EN60079-26]
Explosion Protection
symbol
Equipment
Protection
Level
Dust (EPL)
[See EN60079-26]
Maximum
External
Surface
Temperature
Dust
Protection
Concept
[See EN61241-1]
9
FLAME SENSOR
ELECTRONIC MODULE.
FLAME SENSOR
CONNECTION TERMINALS.
Exd HOUSING WITH
FRONT REMOVED.
Health and Safety at Work Act
In the UK all equipment must be installed and disposed of (as required) within the legislative
requirements of the Health & Safety at Work Act 1974.
Installation
No modification should be made to the enclosure without reference to the manufacturer as
unauthorised modification to an approved enclosure will invalidate the certificate/approval.
1. The enclosures are supplied with drilled and tapped entries. See enclosure drawing
2. The surface of the machined/threaded flamepaths between cover and body must be
protected from scratches or damage during installation. Any such damage can destroy
the validity of the enclosure.
3. Before the cover is refitted, the flamepath/threaded joint between cover and body must
be thoroughly wiped clean of dirt, grit or other foreign substances, and then a thin
coating of an approved form of non-setting grease applied to joint/threads. Ensure the
gasket o-ring is free from damage.
4.
Threaded covers must be screwed on to a minimum of 5 full threads of engagement and
then locked in position with the locking screw provided.
5. All tapped entries must be fitted with an approved flameproof (Exd) device which is
equivalent or superior to the gas group and temperature of the enclosure.
6. The enclosure should be mounted using the two rear M6 tapped holes.
7. Do not scratch the glass.
8. Glanding of cables should be as in Selection of Cable Gland section.
Enclosure with Front Cover Removed