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Lack of equipotential bonding
Risk of explosion through compensating currents or ignition currents through lack of
equipotential bonding.
• Ensure that the device is potentially equalized.
Exception: It may be permissible to omit connection of the equipotential bonding for devices
with type of protection "Intrinsic safety Ex i".
Unsuitable cables, cable glands and/or plugs
Risk of explosion in hazardous areas.
• Use only cable glands/plugs that comply with the requirements for the relevant type of
• Tighten the cable glands in accordance with the torques specified in Technical specifications
• Close unused cable inlets for the electrical connections.
• When replacing cable glands, only use cable glands of the same type.
• After installation, check that the cables are seated firmly.
Incorrect choice of explosion protection type
Danger of explosion in hazardous areas.
If this device is approved for various types of protection:
1. Choose one type of protection.
2. Connect the device according to this type of protection.
3. To prevent improper use at a later time, conceal the other protection types on the label that
Unsuitable devices
Only devices which do not generate sparks during operation may be connected to non-energy-
limited circuits in Zone 2 or 22, and these must be suitable for operation in hazardous areas of
Zone 2 or 22 and the conditions present at the location of use.
Compact Operating Instructions in accordance with EN 61010-1 and EN 60079-0
Compact Operating Instructions, 09/2018, A5E45779389002-01
WARNING
WARNING
protection.
(Page 57).
WARNING
are not being used on a sustained basis.
WARNING
Connecting
4.1 Safety instructions
29
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