Rosemount 3051, Quick Installation Manual

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Quick Installation Guide
00825-0100-4051, Rev BA
June 2009
Rosemount 3051
15
Operation and Maintenance
Proof Test and Inspection
The following proof tests are recommended. Proof test results
and corrective actions taken must be documented at
www.emersonprocess.com/rosemount/safety/certtechdocumentation.htm in the event that
an error is found in the safety functionality.
Use "Table 1: HART Fast Key Sequence" to perform a Loop Test, Analog Output Trim, or
Sensor Trim. See the 3051 reference manual for additional information.
Five-Year
(1)
Proof-Test
Conducting an analog output Loop Test satisfies the proof test requirements and will
detect more than 52% of DU failures not detected by the 3051C or 3051L automatic
diagnostics, and more than 62% of DU failures not detected by the 3051T automatic
diagnostics.
Required tools: HART host/communicator and mA meter.
1. On HART host/communicator enter the Fast Key Sequence 1, 2, 2.
2. Select “4 Other.”
3. Enter the milliampere value representing a high alarm state.
4. Check the reference meter to verify the mA output corresponds to the entered value.
5. Enter the milliampere value representing a low alarm state.
6. Check the reference meter to verify the mA output corresponds to the entered value.
7. Document the test results per your requirements.
Ten-Year Proof-Test
This proof test, when combined with the Five-Year Proof-Test, will detect over 92% of DU
failures not detected by the 3051C or 3051L automatic diagnostics, and over 95% of DU
failures not detected by the 3051T automatic diagnostics.
Required tools: HART host/communicator and pressure calibration equipment.
1. Perform a minimum two point sensor calibration check using the 4-20mA range points
as the calibration points.
2. Check the reference mA meter to verify the mA output corresponds to the pressure
input value.
3. If necessary, use one of the “Trim” procedures available in the 3051 reference manual
to calibrate.
4. Document the test results per your requirements.
NOTE
The user determines the proof-test requirements for impulse piping.
Visual Inspection
Not required.
(1) May be a longer proof test interval as justified by PFDavg calculation.
4051 RevBA.fm Page 15 Monday, June 22, 2009 3:15 PM