KROHNE PROFIFLUX IFS 5000 EN - Manual (Page 8)

8
6 Torques
7. Grounding
• Warning: All flowmeters must be properly grounded to avoid personnel shock hazard.
• The ground conductor should not transmit any interference voltages, therefore do not ground
any other electrical devices together with this conductor.
IFS 5000 F separate primary head with terminal box
• A functional ground FE must always be connected.
• Signal converters with a field power supply of > 125 mA / > 60 V:
IFS 5000 F primary head: because of the higher field current from the signal converter, a PE
protective conductor must be connected to the primary head, see grounding diagrams below.
Flowmeter Max. allowable torques
Size of
measuring
tube
to ...
Pipe flanges
Meter sizes Pressure rating
flange class
max. allowable
operating
pressure
1)
bar psig
with gaskets made
of ...
Nm
...Chemo-
therm ...e.g. built-
up material
2)
3)
4)
Nm Nm ft x lb ft x lb ft x lb
...Gylon
... DIN 2501 (BS 4504)
... ANSI B 16.5
DN 00 2.5 – 10
DN 0 15
DN 0 25
DN 0 40
DN 0 50
DN 0 80
DN 100
000
DN 0 10, 15
DN 0 15
DN 0 25
DN 0 40
DN 0 50
DN 0 80
DN 100
PN 40
PN 40
PN 40
PN 40
PN 40
PN 40
PN 16
PN 25
≤ 40 ≤ 580
≤ 40 ≤ 580
≤ 40 ≤ 580
≤ 40 ≤ 580
≤
40
≤
580
≤
40
≤
580
≤ 16 ≤ 230
≤ 25 ≤ 360
22
47
58
48
75
94
0 32
0 66
0 82
0 69
106
133
16
34
42
35
54
68
0 23
0 48
0 59
0 50
0 77
0 96
32
36
5)
5)
23
23
24
30
38
57
58
30
98
59
75
92
0 33
0 42
0 54
0 81
0 83
0 42
138
0 84
108
131
17
22
28
41
42
22
71
43
54
67
0 24
0 30
0 39
0 59
0 60
0 30
100
0 61
0 78
0 95
35
35
35
35
25
25
25
25
5)
5)
5)
5)
≤ 20 ≤ 290
≤
40
≤
580
≤ 20 ≤ 290
≤ 40 ≤ 580
≤ 20 ≤ 290
≤ 40 ≤ 580
≤
20
≤
290
≤
40
≤
580
≤ 20 ≤ 290
≤ 40 ≤ 580
≤ 20 ≤ 290
≤ 40 ≤ 580
≤
20
≤
290
≤ 25 ≤ 360
150 lb
300 lb
150 lb
300 lb
150 lb
300 lb
150 lb
300 lb
150 lb
300 lb
150 lb
300 lb
150 lb
300 lb
1 / 2 ”
1 / 2 ”
1”
1 1 / 2 ”
2”
3”
4”
1 / 10 ”– 3 / 8 ”
1 / 2 ”
1”
1 1 / 2 ”
2”
3”
4”
1) For ANSI pipe flanges the max. allowable operating pressure is dependent on the process
temperature, see Sect. 10 “Technical data”.
2) Arrangement of gaskets, see Sect. 7 “Grounding”
3) Size of gaskets D2, see Sect. 11.
4) The max. allowable torque is dependent on the gasket material, 10 Nm ~ 1.0 kpm = 7.23 ft
x lbf
5) Gaskets D1 are special O-rings, for Order No. see Sect. 9.