Electrical Installation 63-
4.2.3 LT, LTF, LTH, G5, P3, P7 models
At the bottom side of the mainboard PCB you will find a connector (jumper) which has been placed from
factory side as shown in the picture [left and middle pin connected]. In this position the ground connections
(GND power supply/ outputs) are connected with the ground of the electronics housing.
To avoid ground loops and related signal interferences in industrial environments it might be necessary to
interrupt this connection. To do this please put the jumper in the other position [middle and right pin
connected].
If the thermocouple output is used the connection GND ā housing should be interrupted generally.