HAUBER-Elektronik GmbH
17
14
Installation and commissioning
14.1
General notes
Installation and commissioning the vibration monitoring unit must be performed by an
authorised specialist who is familiar with the safety regulations when handling
electrical components.
Protect the connection cable and any extension cables from electrical interfe-
rence or mechanical damage. Comply with the local regulations and directives.
14.2
Wiring diagram
Earth/ground loops are amongst the most common problems in measurement set-ups with
sensitive sensor technology. These issues arise due to unintentional differences in potential in
the electrical circuit
between the sensor and evaluation unit.
Ensure that the earth connection is electrically secure.
14.2.1
Standard earthing concept
With the standard earthing concept, the sensor cable shield has no connection to the sensor
housing. The sensor housing has the same potential as the machine earth.
1
Machine earth
2
Evaluation unit (measuring device, PLC, etc.)
3
Blue
– 4–20 mA current signal
4
Brown
– 10–30 V DC
5
Cable shield
6
Evaluation unit earth potential
