Torque Information; Ground; General Information On Ground Connections - ABB FXE4000 Commissioning Instructions

Installation
3.2.4

Torque information

Nominal size
mm
3-8
10
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
500
600
700
800
900
1000
3.3

Ground

3.3.1

General information on ground connections

Observe the following items when grounding the device:
• Use the supplied green/yellow cable as a ground wire.
• Connect the ground screw for the flowmeter primary (on flange and transmitter housing) to
the ground.
• The terminal box or COPA housing must also be grounded.
• For plastic pipes or pipes with insulating lining, the ground is provided by the grounding plate
or grounding electrodes.
• When stray currents are present in the pipeline, install a grounding plate at the front and
back of the flowmeter primary.
• For measurement-related reasons, the potentials in the ground and in the pipeline should be
identical.
• An additional ground via the terminals is not required.
Note
If the flowmeter primary is installed in plastic pipeline, or in pipelines with an insulating lining,
transient current may flow through the grounding electrode in special cases. In the long term,
this may destroy the flowmeter primary, since the ground electrode will in turn degrade
electrochemically. In these special cases, the connection to the ground must be performed
using grounding plates.
12 - EN
Nominal
DN pressure
Inch PN
⅜" 40
⅜" 40
½" 40
¾" 40
1" 40
1¼" 40
1½" 40
2" 40
2½" 40
3" 40
4" 16
5" 16
6" 16
8" 16
10" 16
12" 16
14" 16
16" 16
20" 10
24" 10
28" 10
32" 10
36" 10
40" 10
FXE4000 (COPA-XE/MAG-XE)
Flanged units
Screws Model DE41F,
DE43F
Nm
4 x M12 8
4 x M12 8
4 x M12 10
4 x M12 16
4 x M12 21
4 x M16 34
4 x M16 43
4 x M16 56
8 x M16 39
8 x M16 49
8 x M16 47
8 x M16 62
8 x M20 83
8 x M20 81
8 x M24 120
8 x M24 160
16 x M24 195
16 x M27 250
20 x M24 200
20 x M27 260
24 x M27 300
24 x M30 390
28 x M30 385
28 x M33 480
Variable
process
Wafer
connections for
Units
models DE21
and DE23
Nm Nm
2,3 6,5
7 6,5
7 9
11 20
15 32
26 56
33 80
46 30
30 42
40 100
67 125
D184B133U04