KROHNE OPTIFLEX 2200 IECEX - Manual (Page 21)

ELECTRICAL CONNECTIONS
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OPTIFLEX 2200 C/F
www.krohne.com 04/2013 - 4000861902 - AD IECEX OPTIFLEX2200 R02 en
3.3 Terminal tightening capacity
The terminal tightening capacity for the current output terminal and the communication cable is:
3.4 Equipotential bonding system
Compact version
There is a terminal at the bottom of the converter that can be used as an equipotential bonding
conductor. Connect the device to the equipotential bonding system for the hazardous location.
Remote (Field) version
There is a terminal on the wall support and a terminal at the bottom of the probe housing that
can be used as equipotential bonding conductors. Connect the device to the equipotential
bonding system for the hazardous location.
Type of wire Terminal tightening capacity
[mm²] [AWG]
Rigid 4 11
Flexible 2.5 13
Figure 3-3: Ex i applications: Terminals for the equipotential bonding system
Figure 3-4: Ex d / Ex t applications: Terminals for the equipotential bonding system