Smart ODME

Verify that current valid ODME calibration certificate is onboard, checked within 12 months (annual verification requirement), and renewed every 5 years. Certificate must be from authorized service agent per MEPC.108(49). Check for broken seals indicating unauthorized intervention.

Inspect oil content meter for optical cell cleanliness and condition. Test system accuracy with known standard (e.g., clean water baseline and 10 ppm calibration standard). Check for automatic window flushing system functionality. Accuracy must remain within +/- 10 ppm or +/- 10% (whichever greater) per MEPC.108(49) section 6.2.2.

Verify flow meter operational status and Pitot tube positioning in discharge line. Check pressure differential transmitter readings for reasonableness. Confirm sample flow rate is within design parameters (typically 4-5 L/min or 240-900 L/hour depending on model). Test discharge calculation (oil content x flow rate x time).

Review ODME discharge logs for last 3 years: verify oil content readings, discharge dates/times, vessel position (GPS), total quantities. Check for continuity gaps or unexplained system downtime. Confirm records stored in approved format (paper or electronic per MARPOL Annex I). Inspect for evidence of unauthorized modifications or record tampering.

Test automatic control valve solenoid operation: activate system simulation mode (if available) to verify that discharge valve closes when oil concentration exceeds 15 ppm threshold. Confirm mechanical interlocks and electrical failsafe mechanisms. Check pump motor operation and pressure relief settings. Verify failure notification procedures (engine room alarm, bridge alert, maintenance log entry).