Visual Inspection; Specifications - Emerson Rosemount 3051 Series Quick Start Manual

September 2016
Proof test 2
This proof test, when combined with the five-year proof-test, will detect 94.6% of
DU failures not detected by the Rosemount 3051 automatic diagnostics.
1. Execute the Master Reset command to initiate start-up diagnostics.
2. Perform a minimum two point sensor calibration check using the 4–20 mA
range points as the calibration points.s
3. Check the reference mA meter to verify the mA output corresponds to the
pressure input value.
4. If necessary, use one of the "Trim" procedures available in the Rosemount 3051
Reference Manual
Note
The user determines the proof-test requirements for impulse piping.

Visual inspection

Not required.
Special tools
Not required.
Product repair
All failures detected by the transmitter diagnostics or by the proof-test must be
reported. Feedback can be submitted electronically at
EmersonProcess.com/Rosemount/Report-A-Failure.
The Rosemount 3051 is repairable by major component replacement. Follow the
instructions in the Rosemount 3051
7.4 Reference

Specifications

The Rosemount 3051 must be operated in accordance to the functional and
performance specifications provided in the Rosemount 3051
Failure rate data
The FMEDA report includes failure rates and common cause Beta factor estimates.
This report is available at EmersonProcess.com/Rosemount.
Rosemount 3051 safety failure values
Safety accuracy: 0.065%
Safety response time: 100 msec
Product life
50 years – based on worst case component wear-out mechanisms – not based on
wear-out process wetted materials
1. This test will detect approximately 94.6% of possible DU failures in the transmitter.
(1)
to calibrate.
Reference Manual
Quick Start Guide
for additional information.
Reference Manual.
17