A Setra Systems model 270 pressure transducer is used to measure barometer pressure. An Ocean Data Equipment DSF-6000 dual frequency digital survey fathometer is used for measuring depth for s cientific purposes. The transducers used with the system are a 12 kHz and a 200 kHz. There are four 0 to 5 VDC inputs available for project supplied equipment which are recorded with the rest of the SAIL data. Computers All the ship's computers are MS-DOS machines, connected by a Lantastic network running on coax ethernet.
Extra adapters are available for clients to get onto the network.
In addition to the computers dedicated to the CTD, ADCP, and SAIL systems, there i s one computer mounted in the rack in the dry lab available for use by the scientific party. The light profiler has both a deck reference sensor and a water profiler sensor, for measuring both downwelling irradiance and u pwelling radiance. The water unit, which can be lowered to 200 meters, also has a temperature and depth sensor. These boxes can be removed for vertical subsampling. A plate on the side of the box can be re moved for horizontal and vertical subsampling.