Teledyne ULTRAFLOW 150, Operation Manual, Page: 87 / 162

SECTION 9.0, MAINTENANCE
9.0 MAINTENANCE
In the long term, the reliability and accuracy of any continuous monitoring
system depends on the implementation of a conscientious regularly
scheduled maintenance program. If care is taken to perform simple
inspections and take corrective action as required, the Teledyne Monitor
Labs Ultraflow 150 system will provide accurate, reliable data to the user.
9.1 MAINTENANCE SCHEDULE
It must be noted that the conditions under which the monitoring system
operates varies widely from installation to installation. However,
Teledyne Monitor Labs has found the following schedule to be more than
adequate to provide high monitor availability.
9.1.1 After Initial Installation
Teledyne Monitor Labs recommends that the Purge Nozzle Assemblies be
removed from the mounting tubes for visual inspection approximately 30
days after installation and again at 30-day intervals for only the first 3
months of operation. This is a check to see that the purge air being
supplied to the Nozzle Assemblies is adequate and to confirm that the
normal maintenance schedule routine will be sufficient. During these
initial inspections, Teledyne Monitor Labs recommends that the "Teledyne
Monitor Labs Maintenance Check Sheets for the Ultraflow 150" be used
to record the data collected while performing this maintenance. The
“Teledyne Monitor Labs Maintenance Check Sheets for the Ultraflow
150” and Teledyne Monitor Labs “Procedure for Maintenance Check
Sheets for the Ultraflow 150” are located in Appendix B.
9.1.2 Normal Maintenance
Under normal circumstances, Teledyne Monitor Labs recommends that
the maintenance check be performed at least quarterly, but generally not
more often than every two months. The exception to this recommended
schedule would be if the initial inspections performed after installation
revealed that the ambient conditions of the monitor were so adverse that
they require the purge air filters to be changed more frequently.
Extremely dusty conditions in the area of the purge blower will cause the
inlet filter to clog, thus reducing the volume of the protective purge air.
Actual site experience must be used in order to develop an adequate
replacement schedule for the purge air filters.
It should be noted that in performing the maintenance on the flow system
that the monitor may remain on line and collecting data while performing
the check. The exception is when the Purge Nozzle Assemblies are
removed for inspection. Removal of the Purge Nozzle Assemblies will
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