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Installation and operating manual
15 METPOINT
®
SF53
2.7. Measuring ranges
The METPOINT
®
FLM volume flow sensor can measure flow speeds up to 185.0 m/s and is factory-set to an inside pipe diameter of
53.1 mm. At the analog output of 4 ... 20 mA, this corresponds to:
Rated
diameter
Inside
Ø
Volume flow (measuring range limit value in Nm³/h)
Max.
Inch
mm
Air ²
Air ³
Ar³
CO2³
N2³
O2³
N2O³
m/s
1/4"
6.0
9.42
8.7
14.7
9.3
8.4
9.0
9.2
185.0
10.0
30.08
27.7
47.0
29.8
26.7
28.7
29.5
185.0
15.0
77.68
71.4
121.4
76.9
69.1
74.1
76.2
185.0
1/2"
16.1
90.98
83.7
142.2
90.0
80.9
86.7
89.2
185.0
3/4"
21.7
177.84
163.5
278.0
176.0
158.1
169.6
174.4
185.0
1"
25.0
243.88
224.2
381.2
241.4
216.9
232.5
239.1
185.0
26.0
265.20
243.8
414.6
262.5
235.8
252.9
260.0
185.0
27.3
294.72
271.0
460.7
291.7
262.1
281.0
289.0
185.0
28.5
323.32
297.3
505.4
320.0
287.5
308.3
317.0
185.0
30.0
361.08
332.0
564.5
357.4
321.1
344.3
354.1
185.0
1 1/4"
32.8
436.69
401.5
682.7
432.2
388.3
416.4
428.2
185.0
36.0
531.48
488.7
830.8
526.0
472.6
506.8
521.1
185.0
36.3
541.06
497.5
845.8
535.5
481.1
515.9
530.5
185.0
1 1/2"
39.3
639.84
588.3
1000.2
633.3
568.9
610.1
627.4
185.0
40.0
663.68
610.2
1037.5
656.9
590.1
632.8
650.8
185.0
41.9
728.41
669.7
1138.7
720.9
647.7
694.5
714.2
185.0
43.1
777.34
714.7
1215.2
769.4
691.2
741.2
762.2
185.0
45.8
882.17
811.1
1379.0
873.1
784.4
841.2
865.0
185.0
2"
50.0
1059.23
973.9
1655.8
1048.3
941.9
1010.0
1038.6
185.0
51.2
1112.05
1022.5
1738.4
1100.6
988.8
1060.4
1090.4
185.0
53.1
1197.59
1101.1
1872.1
1185.3
1064.9
1141.9
1174.3
185.0
54.5
1263.13
1161.4
1974.6
1250.2
1123.2
1204.4
1238.5
185.0
57.5
1489.43
1369.5
2328.3
1474.1
1324.4
1420.2
1460.5
185.0
60.0
1544.12
1419.8
2413.8
1528.3
1373.0
1472.3
1514.1
185.0
64.2
1774.33
1631.4
2773.7
1756.1
1577.7
1691.8
1739.8
185.0
² According to DIN 1945 / ISO 1217 (20°C, 1000 mbar), with compressed air.
³ Adjustment to DIN 1343: 0°C, 1013.25 mbar