GE DigitalFlow GC868, Руководство по программированию

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April 2008
1-14 Programming Site Data
Pipe Material
4. Press
[F1]-[F4]
to select the Pipe Material . Press [
→]
to access
additional options, as listed in Table 1-3 below.
•
Depending on the pipe material choice, another prompt may
ask you to select the
Specific Material .
•
If you have selected “Other,” enter the pipe material Sound
Speed. Press
[ENT].
Pipe OD
5. Enter the known Pipe OD or circumference and use the
[F1]-[F4]
keys to select the appropriate units. Press
[ENT].
(The meter will
only accept values from 1/8 to 648 in.)
The required pipe data may be obtained by measuring either the pipe
outside diameter (OD) or circumference at the transducer installation
site. The data may also be obtained from standard pipe size tables (see
the GE document
Sound Speeds and Pipe Size Data, #914-004). For a
list of the available English and Metric units and their definitions for
the
PIPE OD
prompt, refer to Table 1-4 on page 1-15.
Table 1-3: Pipe Materials
Category Specific Material
Steel Carbon Steel or Stainless Steel
Iron Ductile Iron or Cast Iron
Cu - Copper None
Al - Aluminum None
Brass None
CuNi - Copper/Nickel 70% Cu 30% Ni or 90% Cu 10% Ni
Glass Pyrex, Flint, or Crown
Plastic Nylon, Polyester, Polypropylene, PVC
(CPVC), Acrylic
Other* Any material