Siemens SITRANS F M MAG 3100 - Potential Equalization

Installing/Mounting
4.6 Potential equalization
SITRANS F M MAG 3100
Operating Instructions, 06/2010, A5E03005599-01
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Table 4- 1 Maximum allowable torques
DN PN 6 PN 10 PN 16 PN25 PN 40 Class 63 Class 150 AWWA
Mm Inch Nm F/lbs Nm F/lbs Nm F/lb
s
Nm F/lb
s
Nm F/lb
s
Nm F/lb
s
Nm F/lbs Nm F/lbs
15 ½ N/A N/A N/A N/A N/A N/A N/A N/A 10 7 N/A N/A N/A N/A N/A N/A
25 1" N/A N/A N/A N/A N/A N/A N/A N/A 16 12 N/A N/A 25 18 N/A N/A
40 1½" N/A N/A N/A N/A N/A N/A N/A N/A 34 25 N/A N/A 52 38 N/A N/A
50 2" N/A N/A N/A N/A N/A N/A N/A N/A 46 34 45 33 83 61 N/A N/A
65 2½" 10 7 N/A N/A 25 18 N/A N/A 34 25 32 23 60 44 N/A N/A
80 3" 25 18 N/A N/A 25 18 N/A N/A 42 31 41 30 76 56 N/A N/A
100 4" 25 18 N/A N/A 25 18 N/A N/A 72 53 68 50 118 87 N/A N/A
125 5" 25 18 N/A N/A 32 24 N/A N/A 114 84 102 75 177 130 N/A N/A
150 6" 25 18 N/A N/A 50 37 N/A N/A 144 106 153 112 159 117 N/A N/A
200 8" 25 18 50 37 52 38 105 77 185 137 189 139 294 216 N/A N/A
250 10" 25 18 50 37 88 65 160 118 300 221 276 203 472 348 N/A N/A
300 12" 50 37 60 44 117 86 170 125 320 236 293 216 541 399 N/A N/A
350 14" 50 37 60 44 120 89 240 177 450 322 413 304 800 590 N/A N/A
400 16" 50 37 88 65 170 125 330 244 650 480 588 431 N/A N/A N/A N/A
450 18" 56 41 92 68 170 125 320 236 370 421 N/A N/A N/A N/A N/A N/A
500 20" 53 39 103 76 230 170 390 288 740 546 N/A N/A N/A N/A N/A N/A
600 24" 81 60 161 119 350 258 560 413 1220 900 1200 N/A N/A N/A N/A N/A
700 28" 48 35 96 71 183 135 N/A N/A N/A N/A N/A N/A N/A N/A 250 184
800 32" 70 52 137 101 257 190 N/A N/A N/A N/A N/A N/A N/A N/A 329 242
900 36" 86 63 144 106 272 201 N/A N/A N/A N/A N/A N/A N/A N/A 339 250
1000 40" 90 66 191 141 364 268 N/A N/A N/A N/A N/A N/A N/A N/A 393 290
1050 42" 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 366 270
1100 44" 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 471 347
1200 48" 126 93 263 194 522 385 522 385 N/A N/A N/A N/A N/A N/A 436 322
1400 54" 165 122 335 247 613 452 613 452 N/A N/A N/A N/A N/A N/A 528 389
1600 66" 190 140 456 336 830 612 830 612 N/A N/A N/A N/A N/A N/A 698 515
1800 72" 239 176 514 379 937 692 937 692 N/A N/A N/A N/A N/A N/A 700 516
2000 78" 288 212 578 426 1128 832 1128 832 N/A N/A N/A N/A N/A N/A 890 656
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.