Section 2: Basic Operation
21
Mounting Sensors
Your choice of sensor mounting will affect the accuracy and
therefore the repeatability of vibration measurements.
For optimal measurement results, accelerometers and velocity
sensors should be mounted using a threaded stud or adhesive
mounting pad and stud rather than relying on magnets. Permanent
mounting of accelerometers is described in Permanent Mounting
(page
22). These instructions can also be applied to velocity
sensors.
Tachometers, displacement sensors, prox probes and current
sensors should be mounted according to the manufacturer's
instructions.
Accelerometer Setup
Plug the connector of the accelerometer into the vb instrument
accelerometer input. Now screw the accelerometer into the magnetic
base and attach to the measurement point ensuring it is:
• Attached to a sturdy, rigidly mounted and non-flexible
structure, where vibration from the rotating part of the
machine will be accurately transmitted. Avoid attachment to
sheet metal, guards, or any machine structure which is not
closely coupled to the source of vibration in the spinning
rotor as the vibration of such a structure will be different to
the vibration source.
• Attached to a structure which is at least 10 times heavier
than the accelerometer itself. Do not mount the
accelerometer on lightweight motors or similar parts as the
weight of the accelerometer will distort the vibration signal.
Use a smaller accelerometer for small structures.
• Attached as closely as possible to, and in line with, the
centerline of the bearings to avoid distorted signals.
• Securely attached to the mounting surface. The surface
should be flat and smooth where the accelerometer makes
contact. Attachment can be either using the supplied
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
Need help?
General
