Schmidt 521501, Инструкция по эксплуатации

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Instructions for Use
– SCHMIDT
®
Flow Sensor SS 20.500 Page 10
Thus, it is possible to calculate the standard volumetric flow of the medium
using the measured standard flow velocity in a pipe with known inner di-
ameter:
𝐴 =
𝜋
4
∙ 𝐷
2
𝑤 ̅
𝑁
= 𝑃𝐹 ∙ 𝑤
𝑁
𝑉̇
𝑁
= 𝑤 ̅
𝑁
∙ 𝐴
PF
Pipe Ø Measuring range of volumetric flow [m
3
/h]
Inner Outer For sensor measuring range
[mm] [mm] 1 m/s 2.5 m/s 10 m/s 20 m/s 35 m/s
0.710
70.3 76.1 10 25 99 198 347
0.710 76.1 82,5 12 29 116 233 407
0.720 82.5 88.9 14 35 139 277 485
0.740 100.8 108.0 21 53 213 425 744
0.750
107.1 114.3 24 61 243 486 851
0.760 125.0 133.0 34 84 336 672 1.175
0.775 131.7 139.7 38 95 380 760 1.330
0.795 150.0 159.0 51 126 506 1,012 1,770
0.810 159.3 168.3 58 145 581 1,162 2,034
0.820 182.5 193.7 77 193 772 1,544 2,703
0.840 206.5 219.1 101 253 1,013 2,026 3,545
0.840 260.4 273.0 161 403 1,610 3,221 5,637
0.845 309.7 323.9 229 573 2,292 4,583 8,020
0.845
339.6 355.6 276 689 2,755 5,511 9,644
0.850 388.8 406.4 363 908 3,633 7,266 12,715
0.850 437.0 457.0 459 1,147 4,590 9,179 16,064
0.850 486.0 508.0 568 1,419 5,677 11,353 19,868
0.850
534.0 559.0 685 1,713 6,853 13,706 23,986
0.850 585.0 610.0 822 2,056 8,225 16,450 28,787
0.850 631.6 660.0 959 2,397 9,587 19,175 33,555
Table 2
SCHMIDT Technology provides a "flow calculator" on its homepage
(page: "Service & Support") for calculation of flow velocity or volume flow
in pipes for various sensor types:
http://www.schmidt-sensors.com/
or
http://www.schmidttechnology.com/
D
Inner diameter of pipe [m]
A
Cross-section area of pipe [m
2
]
N
w
Standard flow velocity in pipe centre [m/s]
N
w
Average standard flow velocity in tube [m/s]
PF
Profile factor (for pipes with circular cross-sections)
N
V

Standard volumetric flow [m
3
/s]