Siemens SITRANS F Series Operating Instructions Manual page 112

Technical data
11.8 PED
Division according to the danger potential
Flowmeters which are categorized as piping are divided into categories according to danger
potential (medium, pressure, nominal diameter). The flowmeters fall into the categories I to III
or they are manufactured according to Paragraph 3 - Sound Engineering Practice (SEP).
The following criteria are decisive for assessment of the danger potential and are also shown
in Diagrams 1 to 4, see Diagrams (Page 111).
Fluid group
● Aggregate state
● Type of
The maximum allowable temperature for the used liquids or gases is the maximum process
temperature which can occur, as defined by the user. This must be within the limits defined for
the equipment.
Division of media (liquid/gaseous) into the fluid groups
Fluids are divided according to Article 13 into the following fluid groups:
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Group 1 or 2
Liquid or gaseous
pressurized
equipment
Product of pressure and volume (PS * V [barL])
– Pipeline
Operating Instructions, 01/2019, A5E44036384-AB
SITRANS FC310