Shipboard Thermosalinographs --
SBE 21 & 45

Brochure/specifications - html or pdf     SBE 21 Manual     Interface Box Manual     Configuration options & accessories

The SBE 21 measures real-time sea surface temperature and conductivity. Removable SBE 21 sensors are housed in a  deck/bulkhead-mountable plastic manifold for connection to a ship's pumped seawater system. It is AC-powered, and has an optically-isolated RS-232 data interface, a microprocessor, FLASH RAM, and real-time clock. Other features include four 0-5 volt A/D input channels for optional auxiliary sensors and an RS-232 input channel for an optional SBE 38 remote temperature sensor. The standard interface box contains a NMEA 0183 port for appending navigation and depth information from a NMEA device to the data stream. Data is typically output to the ship's computer, but can be stored internally for downloading at a later time if a dedicated computer is not desired.

Brochure/specifications - html or pdf     SBE 45 Manual     Interface Box Manual     SBE 45 Reference Sheet     Configuration options & accessories

The SBE 45 is an externally-powered, high-accuracy instrument, designed for shipboard determination of sea surface (pumped-water) conductivity and temperature. Salinity and sound velocity can also be computed. Communication with the SBE 45 is over an internal, 3-wire, RS-232C link, providing real-time data transmission. An optional Interface Box provides power, a NMEA 0183 port for appending navigation information from a NMEA navigation device to the data stream, and an RS-232 port for appending SBE 38 remote temperature sensor output.

Specifications are subject to change without notice.

Last modified: 02-Feb-2010

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