Endress+Hauser Flowphant T ODTT31 Operating Instructions Manual page 5

Flow switch ODTT31, ODTT35
1.2.3 Symbols for certain types of information
Symbol
A
, , ...
1. 2. 3.
1.2.4 Symbols in graphics
Symbol
1, 2, 3, ...
, , , ...
1. 2. 3.
A, B, C, ...
A-A, B-B, C-C, ...
-
.
Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
Reference to page
Reference to graphic
Notice or individual step to be observed
Series of steps
Result of a step
Help in the event of a problem
Visual inspection
Meaning
Item numbers
Series of steps
Views
Sections
Hazardous area
Safe area (non-hazardous area)
Flow direction
About this document
5