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> PM for PRESSURE TRANSMITTERS
PM for PRESSURE TRANSMITTERS
1. Initial Assessment
Verify the operational history of the pressure transmitter.
Identify any previous issues or anomalies reported.
Check the installation environment for potential hazards.
2. Safety Protocols
Ensure that the area around the transmitter is secure.
Confirm isolation of the transmitter from the process system.
Utilize appropriate lockout/tagout (LOTO) methods for safety.
3. Component Verification
Inspect the transmitter housing for any signs of wear or damage.
Check all seals and gaskets for leaks or deterioration.
Examine the pressure sensing element for cleanliness and function.
4. Electrical Inspection
Inspect wiring and connectors for integrity and corrosion.
Confirm that the grounding is intact and functional.
Measure voltage at the transmitter input to ensure proper supply.
5. Performance Verification
Conduct a zero and span check to ensure accuracy.
Test the transmitter's response to pressure changes.
Compare readings against manufacturer specifications and tolerances.
6. Functional Adjustments
Adjust settings as necessary based on testing results.
Re-calibrate the transmitter if readings deviate from acceptable ranges.
Document all adjustments made for future reference.
7. Environmental Checks
Assess the surrounding environment for temperature and humidity effects.
Ensure that the transmitter is adequately protected from environmental factors.
Verify that there is no obstruction affecting the transmitter’s operation.
8. Maintenance Records
Log all maintenance activities and findings in the system.
Ensure that calibration certificates and test results are filed.
Update the preventive maintenance schedule based on findings.
9. Post-Maintenance Review
Conduct a team debrief to discuss the maintenance process.
Identify any challenges faced during maintenance and potential solutions.
Plan for future maintenance tasks based on current assessment and feedback.
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