Emerson Rosemount 3051S MultiVariable - Service Support

transmitters contain an internal fill fluid. It is used to transmit the process pressure
through the isolating diaphragms to the pressure sensor module. In rare cases, oil loss
paths in oil-filled pressure transmitters can be created. Possible causes include: physical
damage to the isolator diaphragms, process fluid freezing, isolator corrosion due to an
incompatible process fluid, etc. A transmitter with oil fill fluid loss may continue to
perform normally for a period of time. Sustained oil loss will eventually cause one or more
of the operating parameters to exceed published specifications as the operating point
output continues to drift. Symptoms of advanced oil loss and other unrelated problems
include:
• Sustained drift rate in true zero and span or operating point output or both
• Sluggish response to increasing or decreasing pressure or both
• Limited output rate or very nonlinear output or both
• Change in output process noise
• Noticeable drift in operating point output
• Abrupt increase in drift rate of true zero or span or both
• Unstable output
• Output saturated high or low
5.6 Service support
To expedite the return process outside of the United States, contact the nearest Emerson
representative.
Within the United States, call the Emerson Instrument and Valves Response Center using
the 1-800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will
assist 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 process material to
which the product was last exposed.
CAUTION
Individuals who handle products exposed to a hazardous substance can avoid injury if they
are informed of and understand the hazard. If the product being returned was exposed to
a hazardous substance as defined by OSHA, a copy of the required Material Safety Data
Sheet (MSDS) for each hazardous substance identified must be included with the returned
goods.
Emerson Instrument and Valves Response Center representatives will explain the
additional information and procedures necessary to return goods exposed to hazardous
substances.
Reference Manual Troubleshooting
00809-0100-4803 October 2018
Emerson.com/Rosemount 141