ELIS PLZEŇ a. s.
Design, Assembly and Service Manual
Page 8 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722
Es90716K
4. TECHNICAL PARAMETERS
4.1. Flow sensor
The sensor environment must be free of any strong magnetic fields.
4.1.1. Selection of correct sensor size
The following table shows minimum and maximum flow rates for various sensor sizes and flow velocities
ranging from 0,05 to10 m/s. The best operational properties will be achieved at the flow-velocity range of 0.5
to 5 m/s. For lower flow velocities, the measurement accuracy is worse while at higher flow velocities the
turbulences at contact edges may cause undesirable interference.
Minimum and maximum flow rates for various sensor sizes
Q
min
corresponds to flow velocity 0.05 m/s
Q
max
corresponds to flow velocity 10.0 m/s
DN
l / s
m3 / h
Q
min
Q
max
Q
min
Q
max
15
0.0072
1,8
0,026
6,5
20
0,013
3,3
0,048
12
25
0,025
5
0,09
18
32
0,04165
8,33
0,15
30
40
0,0625
12,5
0,225
45
50
0,1
20
0,36
72
65
0,16665
33,33
0,6
120
80
0,25
50
0,9
180
100
0,38885
77,77
1,4
280
125
0,5972
119,44
2,15
430
150
0,90275
180,55
3,25
650
200
1,597
319,4
5,75
1150
250
2,5
500
9
1800
300
3,5
700
12,6
2520
350
4,86
972
17,5
3500
400
6,25
1250
22,5
4500
500
10
2000
36
7200
600
11,1
2778
40
10000
700
15,5
3889
56
14000
800
20,0
5000
72
18000