Manual

95-855610.1
Appendix C
ATEX APPROVAL DESCRIPTION
The following items, functions and options describe the ATEX approval.
APPROVAL
Open Path Eclipse Infrared Hydrocarbon Gas Detector, Model OPECL Series.
Receiver Transmitter
0539
FM
APPROVED
®
II 2 G 0539
FM
APPROVED
®
II 2 G
DEMKO 06 ATEX 141002X DEMKO 06 ATEX 141002X
Ex d e [ib] IIC T5 Gb Ex d e IIC T5 Gb
T5 (T
amb
–50°C to +60°C) T5 (T
amb
–50°C to +60°C)
EN 60079-29-4 IP66/IP67.
IP66/IP67.
(Receiver without relays) --OR--
--OR-- Ex d IIC T5 Gb
Ex d [ib] IIC T5 Gb T5 (T
amb
–55°C to +60°C)
T5 (T
amb
–55°C to +60°C) IP66/IP67.
EN 60079-29-4
IP66/IP67.
(Receiver with relays)
Performance verified with Methane in accordance with EN 60079-29-4.
HART Communication Port:
U
o
= 4.0V C
o
= 20µF
I
o
= 100mA L
o
= 500µH
ATEX Special Conditions for Safe Use (general):
• The Model OPECL assemblies shall be installed in places where there is a low risk of mechanical damage.
• The field wiring terminal connections are certified for a single wire in size from 0.2 to 2.5 mm
2
, (or two conductors
with same cross section 0.2 to 0.75 mm
2
). The screws must be tightened down with a torque 0.4 to 0.5 Nm.
• The metal housing of the Model OPECL Gas Detector must be electrically connected to earth ground.
• The Model OPECL has an ambient temperature rating for performance of –55°C to +60°C.
C-1