ATEX: SUPPLEMENTARY INSTRUCTIONS
7
115
OPTIFLEX 1300 C
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01/2008 • 4000172301 - HB OPTIFLEX 1300 R02 en
7.3 Electrical connections
7.3.1 General notes
7.3.2 Terminal compartment
How to open the terminal compartment
•
De-energize the circuit.
•
If the instrument is not isolated, do not remove the terminal compartment cover immediately.
•
After the time given in the table that follows, remove the cover stop
1
.
i
Use a 3 mm allen wrench.
•
Remove the terminal compartment cover
2
.
WARNING!
•
De-energize the circuit.
•
Do not use the earth terminal in the wiring compartment. Use the equipotential bonding
system. Refer to the EEx d [ia] equipment: electrical schema
EEx d [ia] equipment: electrical schema
EEx d [ia] equipment: electrical schema
EEx d [ia] equipment: electrical schema section.
•
If ambient temperature >70
°
C, use heat-resistant cables and cable glands certified for
continuous operation above 85
°
C.
Figure 7-5:
How to open the terminal compartment
1
Cover stop
2
Terminal compartment cover
1
2
WARNING!
Do not remove the terminal compartment cover while the electrical power is connected.
HB_OPTIFLEX1300_EN_D4_080428.book Page 115 Tuesday, April 29, 2008 2:47 PM