Section
8-1
8 Maintenance
GENERAL Troubleshooting is limited to determining the cause of failure. If the
plate or gaskets are damaged or worn, replace them.
RETURN OF MATERIALS To expedite the return process, call the Rosemount National
Response Center using our 800-654-RSMT (7768) toll-free number.
This center, available 24 hours a day, will assist you with any needed
information or materials.
The center will ask for product model and serial numbers, and will
provide a Return Material Authorization (RMA) number. The
center will also ask for the name of the process material the product
was last exposed to.
The National Response Center will detail the additional information
and procedures necessary to return goods exposed to hazardous
substances.
ORIFICE PLATE REMOVAL The orifice plate shown in Figure 8-1 should be periodically removed
from the orifice assembly and cleaned. Inspection frequency depends on
the specific service application of the orifice plate. The gaskets must be
replaced each time the plate is serviced. Make sure that the process
flow is off and that you have the proper replacement gaskets before
beginning maintenance operations.
Loosen and withdraw the assembly bolts shown in Figure 8-1 until they
are clear of the plate. Loosen the four bolts connecting the transmitter
to the assembly to gain additional clearance. Handle the plate carefully
while it is outside of the assembly.
Use only procedures and new parts specifically referenced in this manual to ensure
specification performance and certification compliance. Unauthorized procedures or
parts can render the instrument dangerous to life, limb, or property.
Exposure to hazardous substances can cause severe injury or death. If a hazardous
substance is identified, a Material Safety Data Sheet (MSDS), required by law to be
available to people exposed to specific hazardous substances, must be included with the
returned goods.
Standard plant safety procedures must be followed when removing the orifice assembly
or plate from service. Do not substitute lesser strength bolts for the ones provided with
the assembly.
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