Det-Tronics OPECL Infrared Hydrocarbon Gas Detector - Manual (Page 33)

95-8556 10.1
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 (Tamb –50°C to +60°C) T5 (Tamb –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 (Tamb –55°C to +60°C)
T5 (Tamb –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:
Uo = 4.0V Co = 20µF
Io = 100mA Lo = 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