
Maintenance
3500/42 Operation and Maintenance
90
5. Maintenance
The boards and components inside of 3500 modules cannot be repaired in the
field. Maintaining a 3500 rack consists of testing module channels to verify that
they are operating correctly. Modules that are not operating correctly should be
replaced with a spare.
This section shows how to verify the operation of channels in an
Proximitor
/Seismic Monitor (Section 5.1), how to adjust the scale factor
(Section 5.2.1), and zero position (Section 5.2.2).
5.1
Verifying a 3500 Rack - Proximitor
/Seismic
Monitor Module
The 3500 Monitoring System is a high precision instrument that requires no
calibration. The functions of monitor channels, however, must be verified at
regular intervals. At each maintenance interval, we recommend that you use the
procedures in this section to verify the operation of all active channels in the
monitor. It is only necessary to verify the alarms and accuracy of channel
proportional values that are active.
Section
Number
Topic
Page
Number
5.1.1
Choosing a Maintenance Interval
91
5.1.2
Required Test Equipment
91
5.1.3
Typical Verification Test Setup
92
5.1.4
Using the Rack Configuration Software
93
5.1.5
Radial Vibration Channels
96
5.1.6
Thrust Position and Differential Expansion
Channels
125
5.1.7
Eccentricity Channels
135
5.1.8
Velocity Channels
148
5.1.9
Acceleration Channels
168
5.1.10
Verify Recorder Outputs
182
5.1.11
If a Channel Fails a Verification Test
183
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