Electrical Connection; Power Connection - Siemens 6 Series Compact Operating Instructions

4.1.2 Analyzers in hazardous areas
DANGER
Explosion hazard
If a flammable or ignitable atmosphere exists, plugs must never be disconnected or lamps/fuses replaced when the
analyzer is supplied with power.
DANGER
Potentially explosive atmosphere
The analyzer keys must not be pressed if a potentially explosive atmosphere may be present.
If operation using the keyboard is necessary, a hot work permit is absolutely essential.
Exceptions: Analyzers with approvals 1708 or 2022
•
WARNING
Improper laying of shielded cables
Risk of explosion through compensating currents between hazardous area and the non-hazardous area.
Shielded cables that cross into hazardous areas should be grounded only at one end.
•
If grounding is required at both ends, use an equipotential bonding conductor.
•
WARNING
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".
CAUTION
Incorrect connection
Devices of the "non-sparking" protection type may only be connected and disconnected when in a deenergized state. This
also applies to the SUB-D connections.
Particular reference is made here to the PROFIBUS DP connection. The bus must be switched off when the plug on the
analyzer is connected or disconnected. Please read the information in section PROFIBUS DP (Page 15) with regard to the
bus connection of PROFIBUS DP.
The plug connectors must be mechanically locked.
4.2

Electrical connection

4.2.1

Power connection

NOTICE
Incorrect power supply
Check before connecting that the existing supply voltage corresponds to that specified on the label of the device.
Install the power line separately from the signal lines.
A power supply cable or an appliance plug is enclosed with the device, and must only be connected by qualified personnel
(see Qualified Personnel (Page 3)). The cable is connected to the appliance socket at the rear of the device. At the power
supply end, the cable is inserted into a mains socket are attached to a terminal strip.
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Compact Operating Instructions in accordance with EN 61010-1 and EN 60079-0
A5E45779144002-01, 09/2018