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Sea-Bird CTD - Board measurements and useful resources
Electronic-board tests, board extender, useful links, bibliography, and good practices.
Tests and measurements on electronic boards
To carry out tests and measurements on electronic boards while they are operating, the original guide recommends ordering a board extender from Sea-Bird. This board is inserted between the CTD chassis and the board being tested.

Board extender used for measurements on electronic boards in operation.
This type of intervention requires method, caution, and traceability, because it involves handling powered boards in a complex instrumental chain.
It is important to keep both a digital and manual history (logbook) of board purchases, use, replacements, and troubleshooting.
Useful links
- Sea-Bird Application Notes
- Making a splice on an electro-mechanical sea cable
- Instructions for using the 911plus probe and LADCP
- TUTO: Installing a CTD on a rosette
- Sea-Bird YouTube channel
- SBE911plus product resources
- SBE9plus Manual
- SBE911plus Application Notes
- Troubleshooting Basics: Profiling CTDs
Bibliography
- R. Chuchla, Traitement des données CTDO2, scientific and technical document, IRD Centre Bretagne, 2001.
- P. Pederson, A modular high resolution CTD system, 1984.
- M. Pederson, Development of a small In-Situ conductivity instrument, 1979.
- G. Larson, Calibration of oceanographic CTD instruments: Methods and traceability, 1993.
Good practices
- GO-SHIP: Notes on CTD/O2 data acquisition and processing using SEA-BIRD hardware
- GO-SHIP: A manual for acquiring lowered doppler current profiler
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