What this survey covers.
Magnetic compass adjustment and correction help maintain the reliability of a vessel’s independent navigation heading reference. Attendance requirements, adjustment scope and documentation are agreed with the ship.
Typical inspection scope
- Compass and deviation assessment
- Adjustment and magnetic correction
- Applicable observation and reporting records
How the work is carried out
- 01
Confirm compass type, vessel location and service scope.
- 02
Review deviation indications and applicable conditions.
- 03
Carry out the agreed adjustment or correction where qualified personnel and conditions permit.
- 04
Record observations and provide applicable documentation.
Before the survey & typical deliverables
What to prepare
- Vessel position and operational availability
- Compass type, relevant diagrams and previous deviation records if available
- Required adjustment scope and available safe operating conditions
What the report may include
- Assessment or adjustment observations where performed
- Deviation measurements or records within the agreed scope
- Recommendations for further checks where applicable
Important limitations: Adjustment requires suitable conditions, qualified personnel and vessel access; document issuance is subject to authority and scope.
Exact attendance, methods and deliverables are agreed with the operations team for each assignment.
Who this service is for
Vessel owners, masters, ship managers and technical operations teams.
Frequently asked questions
Why is magnetic compass adjustment important?
A properly assessed compass helps provide a dependable independent heading reference alongside electronic navigation systems.
Is a deviation card included?
Ask the operations team to confirm the records and documentation included in the specific attendance.
Enquiries are welcome for Colombo, Galle, Trincomalee, Hambantota and selected anchorage attendance, subject to operational confirmation. Exact deliverables, credentials, regulatory acceptance, cost and attendance are confirmed for each assignment.
Explore our Sri Lanka marine survey team
Learn about our marine surveying professionals, their documented qualifications, and our port attendance coverage.