Proline Promag L 400 HART
Electrical connection
Hauser
39
1. Connect both sensor flanges to the pipe flange via a ground cable and ground them.
2. If DN
£
300 (12"): Mount the ground cable directly on the conductive flange coating of the
sensor with the flange screws.If DN
³
350 (14"): Mount the ground cable directly on the metal
transport bracket.Observe torques (
3. Connect the connection housing of the transmitter or sensor to ground potential by means of
the ground terminal provided for the purpose.
For remote device versions, the ground terminal in the example always refers to the sensor and
not
to the transmitter.
Plastic pipe or pipe with insulating liner
This connection method also applies in situations where:
• The customary potential equalization is not used
• Equalizing currents are present
A0016318
å
14
Potential equalization via ground terminal and ground disks
1. Connect the ground disks to the ground terminal via the ground cable.
2. Connect the ground disks to ground potential.
Ground cable
Copper wire, at least 6 mm
2
(0.0093 in
2
)
For remote device versions, the ground terminal in the example always refers to the sensor and
not
to the transmitter.
Pipe with a cathodic protection unit
This connection method is only used if the following two conditions are met:
• Metal pipe without liner or pipe with electrically conductive liner
• Cathodic protection is integrated in the personal protection equipment
