EN.IO.AS.dP
Revision 01.A.001/2021.11
7
6. INSTALLATION AND CONNECTION
6.1.
General recommendation
Run the signal line "twisted pair" or "twisted pair shielded" in case of high electromagnetic interference.
Avoid running near power cables and large power consumers.
The equipment used with the transmitters should be resistant to electromagnetic interference from the
transmission line in accordance with compatibility requirements.
6.2.
Connection with PD connector
Loosen the screw at the top of the connector and the nut connecting the connection to the transmitter
casing, the cable outlet can be set in any direction. It is advantageous to form the cable in the form of
an eave loop in order to prevent the condensate from flowing towards the gland. Connect the wires
according to the marking on the transmitter and Table 2 (depending on the version). A correctly assem-
bled PD connection should have the following tightened: the gland nut, the nut of the connection to the
steel case and the screw connecting both parts of the connection.
Table 2
. Electrical connection of transmitter in current and voltage version.
Voltage version
Current version
Connector number
Connector type
Connector number
Connector type
1
+
1
+
2
VOLTAGE
2
-
3
-
3
Not supported
SHIELDED CABLE
SHIELDED CABLE
Figure 1
. Transmitter connection diagram.
6.3.
Earthing
Transmitters with PD connections have a ground terminal in the connector, which should not be used
to realise protective earthing or to connect an equalising cable, it is only used for functional earthing.