Endress+Hauser Levelflex FMP56 Operating Instructions Manual page 5

Levelflex FMP56, FMP57 HART
Endress+Hauser
1 About this document
1.1 Document function
These Operating Instructions contain all the information required in the various life cycle
phases of the device: from product identification, incoming acceptance and storage, to
installation, connection, operation and commissioning, through to troubleshooting,
maintenance and disposal.
1.2 Symbols
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a potentially dangerous situation. Failure to avoid this situation
can result in serious or fatal injury.
CAUTION
This symbol alerts you to a potentially dangerous situation. Failure to avoid this situation
can result in minor or medium injury.
NOTICE
This symbol alerts you to a potentially harmful situation. Failure to avoid this situation can
result in damage to the product or something in its vicinity.
1.2.2 Electrical symbols
Symbol Meaning
Direct current
Alternating current
Direct and alternating current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
Protective earth (PE)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the interior and exterior of the device:
• Interior ground terminal: protective earth is connected to the mains supply.
• Exterior ground terminal: device is connected to the plant grounding system.
1.2.3 Tool symbols
Phillips head screwdriver
Flat blade screwdriver
Torx screwdriver
About this document
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