Instruction Manual
IM-105-4000, Rev 1.3
October 2008
OPM 4000
7-2
CONTROL UNIT
PREVENTIVE
MAINTENANCE
Preventive maintenance consists of cleaning the instrument regularly and
inspecting it occasionally for broken or damaged parts. Regular maintenance
will improve the reliability of your instrument and prevent break downs.
Item to Check
Frequency
Procedure
Air flow switch
3 months
Ensure that air flow switch is
operating properly. Refer to "Air Flow
Switch" in Section 8:
Troubleshooting.
Air hoses and clamps
3 months
Check for tightness and wear;
replace as necessary.
Electrical connections
3 months
Make sure electrical connections are
wired correctly and secure. Refer to
"System Wiring Installation" in
Section 2: Installation.
Mounting hardware
3 months
Check bolts for tightness.
Weather cover
3 months
Clean as required. To access or
remove, refer to "Transceiver and
Retro Reflector Hinge Pins" in
Section 2: Installation.
Weather cover gaskets
3 months
Check for leakage.
Cables and connectors
6 months
Check, clean, replace as required.
Flange
6 months
Push build-up into stack to clear
flange. To access flanges, refer to
"Installation of Stack Flanges" in
Section 2: Installation.
All quarterly checks
Yearly
Air plenum
Yearly
Remove transceiver and retro
reflector to clean air plenum. Refer to
"Transceiver and Retro Reflector
Hinge Pins" in Section 2: Installation.
Clear stack or off stack
zero
Yearly
For instructions, refer to Section 6:
Zero and Span Calibration.
Hoses and gaskets
Yearly
Replace if necessary.
Inner optics
Yearly
Clean if necessary.
System operations
Yearly
Check all system operations. Refer to
Section 4: Operation.
Transceiver and retro
reflector
3-5 years (site dependent)
Return to the factory for internal
alignment and cleaning. To access or
remove, refer to "Air Plenum" in
Section 2: Installation.
Additional preventive maintenance
Yearly
Corrective and preventive maintenance schedules should be adjusted according to site
specific conditions to ensure the maximum availability of accurate measurement data.
Routine checks should be implemented to:
Observe and correct the operation of the air-purge system giving particular attention
to keeping the optical path within the mounting flanges clear of dirt build-up.
Observe and correct the operation of peripheral accessory equipment such as
recorders, computers, etc.
Observe and correct the stack zero measurement whenever a clear stack condition
exists. Care should be exercised to ensure that both transmittance and opacity
measurements are at their prescribed values.
Verify that instrument operating manuals are available and that maintenance logs are
properly maintained and reviewed.
Replace any worn hoses and gaskets.
Summary of Contents for Rosemount Analytical OPM 4000
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