
Reference Manual
00809-0100-4801, Rev FA
October 2010
6-5
Rosemount 3051S Series
OPERATION AND
MAINTENANCE
Proof Test
The following proof tests are recommended.
Proof test results and corrective actions taken must be documented at
http://rosemount.d1asia.ph/rosemount/safety/ReportAFailure_newweb.asp
(Report a Failure button)
in the event that an error is found in the safety
functionality.
Use “Fast Key Sequence” on page 3-6 to perform a Loop Test, Analog Output
Trim, or Sensor Trim.
Proof Test 1
Conducting an analog output Loop Test satisfies the proof test requirements
and will detect more than 52% of DU failures not detected by the 3051S_C or
3051S_L automatic diagnostics, and more than 62% of DU failures not
detected by the 3051S_T 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.
Proof Test 2
This proof test, when combined with the Proof Test 1, will detect over 92% of
DU failures not detected by the 3051S_C or 3051S_L automatic diagnostics,
and over 95% of DU failures not detected by the 3051S_T 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 on page 4-5.
4. Document the test results per your requirements.
NOTE
The user determines the proof test requirements for impulse piping.
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