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