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Potential Equalization - Siemens SITRANS F M MAG 3100 Operating Instructions Manual

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Table 4- 1
Maximum allowable torques
DN
PN 6
Mm
Inch
Nm
F/lbs
15
½
N/A
N/A
25
1"
N/A
N/A
40
1½"
N/A
N/A
50
2"
N/A
N/A
65
2½"
10
7
80
3"
25
18
100
4"
25
18
125
5"
25
18
150
6"
25
18
200
8"
25
18
250
10"
25
18
300
12"
50
37
350
14"
50
37
400
16"
50
37
450
18"
56
41
500
20"
53
39
600
24"
81
60
700
28"
48
35
800
32"
70
52
900
36"
86
63
1000
40"
90
66
1050
42"
N/A
N/A
1100
44"
N/A
N/A
1200
48"
126
93
1400
54"
165
122
1600
66"
190
140
1800
72"
239
176
2000
78"
288
212
4.6

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.
SITRANS F M MAG 3100
Operating Instructions, 06/2010, A5E03005599-01
PN 10
PN 16
Nm
F/lbs
Nm
F/lb
s
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
18
N/A
N/A
25
18
N/A
N/A
25
18
N/A
N/A
32
24
N/A
N/A
50
37
50
37
52
38
50
37
88
65
60
44
117
86
60
44
120
89
88
65
170
125
92
68
170
125
103
76
230
170
161
119
350
258
96
71
183
135
137
101
257
190
144
106
272
201
191
141
364
268
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
263
194
522
385
335
247
613
452
456
336
830
612
514
379
937
692
578
426
1128
832
PN25
PN 40
Nm
F/lb
Nm
F/lb
s
s
N/A
N/A
10
7
N/A
N/A
16
12
N/A
N/A
34
25
N/A
N/A
46
34
N/A
N/A
34
25
N/A
N/A
42
31
N/A
N/A
72
53
N/A
N/A
114
84
N/A
N/A
144
106
105
77
185
137
160
118
300
221
170
125
320
236
240
177
450
322
330
244
650
480
320
236
370
421
390
288
740
546
560
413
1220
900
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
522
385
N/A
N/A
613
452
N/A
N/A
830
612
N/A
N/A
937
692
N/A
N/A
1128
832
N/A
N/A
Installing/Mounting
4.6 Potential equalization
Class 63
Class 150
Nm
F/lb
Nm
F/lbs
s
N/A
N/A
N/A
N/A
N/A
N/A
25
18
N/A
N/A
52
38
45
33
83
61
32
23
60
44
41
30
76
56
68
50
118
87
102
75
177
130
153
112
159
117
189
139
294
216
276
203
472
348
293
216
541
399
413
304
800
590
588
431
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1200
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
AWWA
Nm
F/lbs
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
250
184
329
242
339
250
393
290
366
270
471
347
436
322
528
389
698
515
700
516
890
656
29
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