Endress+Hauser Proline Promass S 100, Technical Information

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Proline Promass S 100
4 Hauser
Document information
Symbols used Electrical symbols
Symbol Meaning
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
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.
Symbols for certain types of information
Symbol Meaning
Permitted
Indicates procedures, processes or actions that are permitted.
Preferred
Indicates procedures, processes or actions that are preferred.
Forbidden
Indicates procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
Refers to the corresponding device documentation.
Reference to page
Refers to the corresponding page number.
Reference to graphic
Refers to the corresponding graphic number and page number.
Visual inspection
Symbols in graphics
Symbol Meaning
1, 2, 3,... Item numbers
, … ,
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections
Flow direction