Ground Connections; 1M, 2M, 3M Models; Model - B+B Sensors DM-Compact Series Operating Manual

OPEARTING MANUAL
4.2

Ground Connections

4.2.1

1M, 2M, 3M 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 [bottom 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 put the jumper in the opposite position [middle and top pin connected].
If the thermocouple output is used the connection GND – housing should be interrupted generally.
4.2.2 4M Model
On the left side of the mainboard PCB, you will find a black switch which is connecting factory-default the ground connections (GND
power supply/ outputs) 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.
For this purpose, the switch must be changed
Technische Änderungen vorbehalten
0141 0315-100 24.06.2022
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