Badger Meter Dynasonics DXN, Руководство пользователя

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If a fluid from the Fluid Material list is chosen, a default specific heat is automatically loaded . If the actual specific heat of
the liquid is known or it differs from the default value, the value can be revised . A list of alternate fluids and their associated
specific heat capacities is located in the Appendix of this manual . Enter a value that is the mean of both pipes .
Heat capacity or thermal capacity, is the physical quantity that characterizes the amount of heat required to change a
substance’s temperature by a given amount . The SI unit of heat capacity is expressed in joules per degree kelvin (J/°K) .
The specific heat capacity, often simply called specific heat, is the heat capacity per unit mass of a material . Occasionally, in
engineering contexts, a volumetric heat capacity is used . The quantity used in the DXN is calculated as:
Specific Heat Capacity
kJ
kg x K
=
°
TNSI Pipe Page
Figure 51: Setup > ANSI Pipe
The ANSI Pipe page provides access to built-in pipe tables . The pipe lookup tables use cascading options to make selections .
When you select
Pipe Material
, the ANSI Schedule/Class option becomes available . When you select
TNSI Schedule/Class
,
the Nominal Size option becomes active .
The Setup > ANSI Pipe and Setup > Pipe drop-down lists interact with each other . When you select a parameter in one
drop-down list, that parameter becomes unavailable in the other drop-down list .
Select
Use Manual Entry
for Pipe Material to enter non-standard parameters . Choosing Use Manual Entry unlocks the
Pipe Material , Pipe OD , and Pipe Wall [Thickness] options (see Figure 54 ) on the Setup > Pipe page .
Pipe Material
Choose the pipe material from the combo box drop-down list .
Manual Dimension Entry Iron - Cast St Steel 304L
Aluminum Iron - Ductile St Steel 316
Brass (Naval) PVC CPVC St Steel 347
Carbon Steel St Steel 302/303 St Steel 410
Copper St Steel 304 St Steel 430
Table 9: Pipe material choices
OTEE: N
This list is provided as an example . Additional pipe materials are added periodically .
Setup Group
Page 41 November 2016 HYB-UM-00090-EN-04