Important Document Information; Document Conventions - Endress+Hauser Levelflex FMP51 Operating Instructions Manual

Levelflex FMP51, FMP52, FMP54
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Important document information

1.1

Document conventions

1.1.1 Safety symbols
Symbol
DANGER
A0011189-EN
WARNING
A0011190-EN
CAUTION
A0011191-EN
NOTICE
A0011192-EN
1.1.2 Electrical symbols
Symbol Meaning
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011197
Alternating current
A terminal to which alternating voltage (sine-wave) is applied or through which alternating current flows.
A0011198
Ground connection
)
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.
A0011200
Protective ground connection
*
A terminal which must be connected to ground prior to establishing any other connections.
A0011199
Equipotential connection
A connection that has to be connected to the plant grounding system: This may be a potential equalization
line or a star grounding system depending on national or company codes of practice.
A0011201
1.1.3 Tool symbols
A0011219
Phillips head
screwdriver
Endress+Hauser
Meaning
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 dangerous situation. Failure to avoid this situation can
result in serious or fatal injury.
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in minor or medium injury.
NOTICE!
This symbol contains information on procedures and other facts which do not result
in personal injury.
A0011220
Flat blade
Torx screwdriver
screwdriver
Important document information
A0013442 A0011221
Allen key
A0011222
Hexagon wrench
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