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Calibration range :
It calibration by standard Range shown in the table below when Range is not
specified.
It calibration when there is specification by flowing quantity Range in which the customer is
specified. Is this specification Range flowing quantity of Figure 9.1. Please confirm becoming
in the upper bound value from the flow velocity chart.
Standard Flow range
Meter size
Flow rate (m
3
/h) Flow velocity (m/s)
15 mm
1/2”
2 3.144
25mm
1”
6 3.395
32mm
1
1/4”
10 3.454
40mm
1
1/2”
15 3.316
50mm
2”
25 3.537
65mm
2
1/2”
40 3.348
80mm
3”
60 3.316
100mm
4”
100 3.537
125mm
5”
150 3.395
150mm
6”
200 3.144
200mm
8”
300 2.653
250mm
10”
600 3.395
300mm
12”
900 3.537
350mm
14”
1200 3.465
400mm
16”
1600 3.537
450mm
18”
2500 4.366
500mm
20”
3000 4.244
600mm
24”
4000 3.930