Emerson Rosemount 2120, Справочное руководство

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8. If the LED is flashing twice per second, the calibration has worked correctly.
a) Remove the magnet from the test-point.
b) After a one second delay, the unit will return to normal operation. Proceed to
Step 11 .
9. If the LED is flashing once per second or it is on continuously, the calibration has
failed:
a) Remove the magnet from the test-point.
b) Wait ten seconds, and then re-try from Step 2 .
10. If the LED is not lit (after the two seconds delay in Step 7 ):
a) Check the sensor forks are clean and dry.
b) Check if anything is jamming or touching the sensor forks.
c) Contact Customer Support at Emerson if no fault is found.
11. Set the mode switch to the original setting and wait five seconds.
12. Replace the housing cover and check that the system works.
Related information
Magnetic test point
6.8 Opening the lid (cover)
Before opening the lid for maintenance reasons observe following items:
• Do not remove the lid while circuits are live.
• No dust deposits or whirlings are present.
• No rain can enter into the housing.
6.9 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 Valve Response Center using
the 1-800-654-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 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. Returned products must include a copy of the
required Safety Data Sheet (SDS) for each substance.
Reference Manual Service and troubleshooting
00809-0100-4030 March 2022
Rosemount 2120 Level Switch 63