Rockwell Automation 1442 Eddy Current Probe System - Manual (Page 39)

Rockwell Automation Publication ICM-UM004C-EN-E - February 2014 39
Chapter
2
Maintenance and Inspection
This chapter describes the maintenance and inspection procedures for the unit.
Periodic Inspection Intervals 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.
Refer to Set Gap Voltage
on page 36 .
Unit Life Plan to replace eddy current probe systems approximately every 10 years.
The following is a flowchart for determining when a replacement is required.
IMPORTANT Ten years is a general guideline for replacement. If otherwise undisturbed,
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.
Calibration
(Static characteristic data collection)
The margin for error satisfies the specifications.
(Thrust, Rotations --> sensitivity)
(Vibration, Eccentric --> scale factor)
Verify the installation, reset the gap and/or troubleshoot
the system per this instruction.
Does the system performance satisfy the specifications?
Replacement is recommended.
Continue to use the unit.
Continue to use the unit after adjustment.
Yes
Yes
No
No