High-level alarm and overfill alarm systems are critical components on tankers like MT Rayong Chemi. Both systems provide early warning when liquid cargo levels reach a certain limit, preventing spills (overfilling), tank damage, and other safety risks. When the alarms malfunction, repairs must be carried out immediately to maintain the ship’s safety standards.

What is a High Level Alarm and Overfill Alarm?
High Level Alarm
An alarm that sounds when the liquid level in the tank reaches a preset limit. This system warns that the tank is almost full.
Overfill Alarm
An additional alarm is activated when the tank level exceeds the maximum limit, preventing spills during loading.
Both are international requirements, including compliance with MARPOL and OCIMF.

High Level Alarm and Overfill Repair Process
Repairs are carried out through systematic stages until the alarm returns to working normally.
- Preparation and Safety Procedures
- Visual Inspection
- Sensor and Wiring Testing
- Component Repair or Replacement
- Reinstallation and Setup
- Testing & Commissioning


Benefits of Repairing High Level Alarms and Overfills
Alarm repair provides many operational benefits:
- Preventing cargo overflow
- Ensuring safe operations during loading
- Meeting PSC, vetting, and terminal inspection requirements
- Reducing the risk of fire due to overfilling
- Maintaining the integrity and reliability of the cargo system
- Avoiding financial losses and environmental pollution


Conclusion
Repairing the high-level alarm and overfill system on the MT Rayong Chemi is crucial to ensuring the safety of the vessel, crew, and cargo. Through wiring inspections, sensor testing, control panel repairs, and proper commissioning, the alarm system can be restored to optimal operation during cargo handling.
Routine maintenance and periodic checks are key to ensuring the alarm remains reliable and meets international safety standards.


