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Installing/Mounting
4.5 Potential equalization
21
Class 150
AWWA
DN
PN 10
PN 16
PN 40
800
32"
274/274
202/202
386/380 285/285 N/A
N/A
N/A
N/A
260
192
900
36"
288/288
213/213
408/408 301/301 N/A
N/A
N/A
N/A
240
177
1000 40"
382/382
282/282
546/546 403/403 N/A
N/A
N/A
N/A
280
207
1050 42"
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
280
207
1100 44"
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
290
214
1200 48"
395/395
292/292
731/731 539/538 N/A
N/A
N/A
N/A
310
229
1400 54"
-/503
-/317
-/736
-/543
N/A
N/A
N/A
N/A
528
389
1600 66"
-/684
-/505
-/913
-/674
N/A
N/A
N/A
N/A
698
515
1800 72"
-/771
-/569
-/937
-/692
N/A
N/A
N/A
N/A
700
516
2000 78"
-/867
-/640
-/1128
-/832
N/A
N/A
N/A
N/A
890
656
4.5
Potential equalization
To obtain optimum results from the measuring system, the sensor must have the same
electrical potential as the liquid being measured.
This is achieved by means of built-in grounding electrodes.
Figure 4-10 Potential equalization with earthing electrodes
Cathodic protected piping
Special attention must be paid to systems with cathodic protection
WARNING
Use in hazardous area!
Cathodic pipe protection is not allowed in hazardous areas
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