Technical data

Flow meter FC01-Ex Flow meter FC01-Ex
Ex atmosphere - Definitions and mounting instructions 5 Ex atmosphere - Definitions and mounting instructions 5
2.5 Cable length
The monitoring head CST-Ex is connected to the flow monitor FC01-Ex by means of an 8pole,
paired connection cable with overall shield.
The shield is grounded on both sides, on the potentially explosive and the non-hazardous side,
to prevent inductive interference. To prevent any potentially inflammable currents from flowing
over the shield, it is imperative to observe the following:
Installation has to ensure to a high degree that there is equipotential bonding between
each end of the circuit. In order to ensure that the shield will not become >1 Ohm and
induce potential differences, it may be necessary to ground the shield at additional
positions.
If this is technically not possible, the max. cable length has to be restricted to 50 m (see DIN
EN 60079-14, Electrical equipment in potentially explosive areas [VDE 0165, part 1], section 12.2.2.3,
grounding inductive systems [with example]: special case b).
2.5 Cable length
The monitoring head CST-Ex is connected to the flow monitor FC01-Ex by means of an 8pole,
paired connection cable with overall shield.
The shield is grounded on both sides, on the potentially explosive and the non-hazardous side,
to prevent inductive interference. To prevent any potentially inflammable currents from flowing
over the shield, it is imperative to observe the following:
Installation has to ensure to a high degree that there is equipotential bonding between
each end of the circuit. In order to ensure that the shield will not become >1 Ohm and
induce potential differences, it may be necessary to ground the shield at additional
positions.
If this is technically not possible, the max. cable length has to be restricted to 50 m (see DIN
EN 60079-14, Electrical equipment in potentially explosive areas [VDE 0165, part 1], section 12.2.2.3,
grounding inductive systems [with example]: special case b).