Xylem Magflux Electromagnetic Flow Meter - Manual (Page 17)

17
Electromagnetic Flow Meter
FW: 842018/842009
Accuracy
According to the type and size of the flow sensor, the measuring accuracy
will be better than 0.25%, provided that the flow sensor has the correct
dimension.
1
2
3
4
5
[%]
0,2 0,1 0 0,5 2 1 5 10 m/s
Sizing
The flow sensor should be selected so the flow velocity through the sensor
will be between 0.2 - 10 m/s.
MJK recommends that flow velocities in tubes are kept between 1 - 3 m/s
for reliable and safe operation. See also the dimensioning table below and
the dimensioning chart on the following page.
Min and max flow
DN
Qmin Qmax
DN
Qmin Qmax
DN
Qmin Qmax
0.2 m/s 10 m/s 0.2 m/s 10 m/s 0.2 m/s 10 m/s
[l/h] [l/h] [l/h] [l/h] [m 3 /h] [m 3 /h]
3 5.09 254 20 226 11304 65 2,39 119
6 20.4 1018 25 353 17676 80 3,62 181
8 36.2 1810 32 579 28944 100 5,65 283
10 56.5 2827 40 905 45360 125 8,84 442
15 127 6362 50 1414 70560 150 12,7 636
Min and max flow
DN
Qmin Qmax
DN
Qmin Qmax
DN
Qmin Qmax
0.2 m/s 10 m/s 0.2 m/s 10 m/s 0.2 m/s 10 m/s
[m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h] [m 3 /h]
200 22.6 1131 450 115 5726 900 458 22902
250 35.3 1767 500 141 7069 1000 565 28274
300 50.9 2545 600 204 10179 1200 814 40715
350 69.3 3464 700 277 13854 The Qmax. is equal to 20 mA
factory preset
400 90.5 4524 800 362 18095