Tokyo Keiki KRG-10, Руководство пользователя

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7-4
(2) Flow calculation
To calculate flow, select a standard channel shape (weir or flume) from among those in the "Flow
calc. method" setting parameter or select a user definition. If you select a standard Flow calc.
method, set each of the required parameters. The standard channel shape setting parameters are
shown in the following table.
Table 7.4.2 Standard channel shape setting parameters
Setting parameters /
channel shape
Weir (JIS B 8302)
Flume
(JIS B 7553)
60°triangular
weir
90°triangular
weir
Rectangular
weir
Full-width
weir
B (width of channel)
● ● ● ●
-
b (width of weir)
- -
●
- -
ν
(kinematic
viscosity of water)
●
- - - -
D (height of weir
edge relative to
bottom of channel)
● ● ● ●
-
Flume shape
(Nominal)
- - - -
●
If you select a user definition, you must set flow table.
Figure 7.4.2 Setting flow table
Flow table can be set using the configuration software. Between 2 (minimum) and 100 (maximum)
calibration points can be set. If the size of the setting level values is wrong (not in order of smallest
[value]), an device status table error occurs, and functions will not operate. For details on device
status, refer to
5.4 Parameter instruction --> [8-3] Device Status or 6.10 Tools --> Error .