HAUBER-Elektronik GmbH
15
13
Assembly and disassembly
13.1
General notes
Assembly and disassembly work on and with the vibration monitoring unit may only be
performed by an authorised specialist familiar with the safety regulations governing handling
electrical components.
The housing of the vibration monitoring unit must be earthed via the fixing
–
through the machine earth of the mounting surface or through a separate
protective conductor (PE).
13.2
Fixing the vibration monitoring unit to the mounting surface
13.2.1
Prerequisites
• Mounting surface is clean and flat; i.e. free of paint, rust, etc.
• Measuring head area of the vibration monitoring unit must lie flat on the mounting surface.
13.2.2
Tool
• Hex key, width A/F 24
13.2.3
Work steps and instructions
• Screw vibration monitoring unit into the threaded hole of the mounting surface in a friction-
locked manner using a hex key. The tightening torque should be 8 Nm.
• The tightening torque of the M12 union nut of the plug connection must not exceed 0.4 Nm
To obtain precise measurement values, the vibration monitoring unit must be
fixed to the mounting surface in a friction-locked manner.
Auxiliary structures for fixing are to be avoided. If unavoidable, make them as
firm as possible!
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. As a countermeasure, we recommend our standard
earthing concept or, depending on the application our Alternative earthing
concept
Ensure that the earth connection is electrically secure.
