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Periodic Inspection Intervals
Unit Life
Maintenance and Inspection
This chapter describes the maintenance and inspection procedures for the unit.
To maintain performance and secure system stability of the unit, inspect the
system and its mounts for corrosion, properly-tightened or torqued fittings and
connections, and component conditions annually. Check sensor gap settings
annually and at any time measurements become suspect.
on page
36.
Plan to replace eddy current probe systems approximately every 10 years.
Ten years is a general guideline for replacement. If otherwise undisturbed,
IMPORTANT
eddy current probe systems deteriorate over time due to temperature and
erosion. The deterioration rate for sensors, extension cables, and drivers
depends on the specific environmental conditions to which each
component is subjected.
The following is a flowchart for determining when a replacement is required.
Calibration
(Static characteristic data collection)
The margin for error satisfies the specifications.
(Thrust, Rotations --> sensitivity)
(Vibration, Eccentric --> scale factor)
No
Verify the installation, reset the gap and/or troubleshoot
the system per this instruction.
Does the system performance satisfy the specifications?
No
Replacement is recommended.
Rockwell Automation Publication ICM-UM004C-EN-E - February 2014
Chapter
Refer to Set Gap Voltage
Yes
Continue to use the unit.
Yes
Continue to use the unit after adjustment.
2
39
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