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14 Libraries
14 Libraries
The internal material database of the flowmeter contains parameters for pipe and lining
materials as well as for media. It can be extended by user defined materials or media.
User defined materials and media will always be displayed in the scroll lists of the pro-
gram branch
PARAMETER
.
User defined materials and media can be stored in an integrated coefficient memory (us-
er area). The coefficient memory has to be partitioned first (see section 14.1).
The properties of user defined materials or media can be entered as follows:
• as constants without the extended library (see section 14.2)
• as constants or temperature and pressure dependent functions by means of the ex-
tended library (see section 14.3)
The material and media scroll lists displayed in the program branch
PARAMETER
can be
arranged (see section 14.5). The shorter scroll lists make the work more efficient.
14.1 Partitioning of the Coefficient Memory
The coefficient memory can be arbitrarily parted among the following material data:
• material properties:
- transversal and longitudinal sound velocity
- typical roughness
• medium properties:
- min. and max. sound velocity
- kinematic viscosity
- density
- gas compressibility factor
• heat flow coefficients (additional medium property)
• steam coefficients (additional medium property)
• concentration coefficients (additional medium property)
For the max. number of data sets for each category of these material data see Table
14.1.
Table 14.1: Capacity of the coefficient memory
max. number of
data sets
occupancy of the coefficient
memory in %
materials 13 97
media 13 97
heat flow coefficients 29 98
steam coefficients 19 95
concentration coefficients 14 98
Select in the program branch
SPECIAL FUNCTION\SYS-
TEM SETTINGS\LIBRARIES
the list item
FORMAT USER-
AREA
. Press ENTER.
Libraries

Format USER-AREA