Packing Specification

ODME Calibration Service:

1.    System Verification and Functional Testing:

-Checking the system's overall functionality, including the alarm and control logic.

-Verifying that the system correctly calculates the oil discharge rate (in L/NM) based on inputs from the oil content meter, flow meter, and ship's speed (from GPS).

-Simulating an alarm condition to ensure the system correctly closes the overboard discharge valve and opens the slop tank valve, redirecting the oily mixture for further processing.

2.    Calibration of the Oil Content Meter:

-This is the most critical part of the service. It involves using a certified test fluid with a known oil concentration (e.g., 500 PPM) to check the accuracy of the oil content meter.

-The technician will flush the measuring cell, introduce the test fluid, and verify that the analyzer's reading is within the acceptable tolerance, usually ±10%.

-For some systems, a "zero" calibration using fresh water is also performed.

3.    Physical Inspection and Maintenance:

-Checking for any leaks in the sample lines, pumps, and valves.

-Inspecting and cleaning the measuring cell, which can accumulate oil or other deposits that affect readings.

-Checking and servicing the automatic cleaning system (e.g., fresh water flush, wiper blades), which is vital for maintaining the cell's accuracy.

-Verifying the proper functioning of the sample pump and all pneumatic valves.

4.    Documentation and Certification:

-After the service is completed successfully, the technician will issue a detailed service report.

-An official Calibration Certificate is provided, which must be kept on board the vessel for inspection by port state control authorities or classification societies. This certificate typically includes the vessel's details, the ODME system's specifications, the service date, and the "as-found" and "as-left" calibration data.

Service Frequency and Spares

-Annual Verification: IMO guidelines and regulations generally require an annual functional check and verification of the ODME system's accuracy. This is often done during the IOPP annual survey.

-Five-Year Recertification: Many manufacturers recommend a more comprehensive calibration and cell renewal every five years, often coinciding with the IOPP renewal survey.

-Spares: A proper ODME service also includes checking the vessel's onboard spares inventory to ensure it complies with the manufacturer's recommendations and regulatory requirements. This is crucial for quick repairs and minimizing downtime.