Haefely 2830, User Manual, Page: 34 / 124

26 Device Operations
1 Measurement Input Cx
2 Measurement Input Cn
3 V
(Common)
(Reference Point of the bridge)
4 The black jumper must always be connected to the V
(Common)
If the black jumper is not connected and High Voltage is switched on HIGH
VOLTAGE can occurred on the V(Common) point.
5 Earth connection
6 V
(Common)
terminal to connect to the 2831 V
(Common)
. (internally connected 6 to 3)
7 Ethernet Interface
8 USB Interface 3
9 USB Interface 4
10 Safety Ground Connection
For safety reasons this earth cable should be the FIRST lead to be connected to the set
and the LAST to be disconnected.
11 Mains Power Switch
12 Mains Fuse
13 Mains input socket