Endress+Hauser Proline Promag W 800 - Shielding and Grounding

Electrical connection Proline Promag W 800
48 Endress+Hauser
Remote version
E1
E2
GND
S1
E1
E2
S2
GND
5
7
4
37
42 41
n.c. n.c.
21
1
2
42 41
A
B
6
5
7
8
4
37 36
n.c.
E
E
S
A0032059
 8 Remote version terminal assignment
A Transmitter wall-mount housing
B Sensor connection housing
1 Electrode cable
2 Coil current cable
n.c. Not connected, insulated cable shields
Terminal No. and cable colors: 6/5 = brown; 7/8 = white; 4 = green; 36/37 = yellow
7.2.5 Shielding and grounding
Shielding and grounding concept
1. Maintain electromagnetic compatibility (EMC).
2. Pay attention to the protection of persons.
3. Comply with national installation regulations and guidelines.
4. Observe cable specifications →  44.
5. Keep the stripped and twisted lengths of cable shield to the ground terminal as short
as possible.
6. Shield cables fully.
Grounding of the cable shield
NOTICE
In systems without potential matching, the multiple grounding of the cable shield
causes mains frequency equalizing currents!
Damage to the bus cable shield.
‣
Only ground the bus cable shield to either the local ground or the protective ground at
one end.
‣
Insulate the shield that is not connected.
To comply with EMC requirements:
1. Ensure the cable shield is grounded to the potential matching line at multiple points.
2. Connect every local ground terminal to the potential matching line.