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SBE-21 Thermosalinograph

SBE-21 Thermosalinograph
The SBE 21 accurately determines sea surface temperature and conductivity from underway vessels.

SBE-21 Thermosalinograph

Sea-Bird Electronics

The SBE 21 accurately determines sea surface temperature and conductivity from underway vessels. Data is simultaneously stored in memory and transmitted to a computer serial port, allowing independent data logging and real-time data acquisition. Typically mounted near the ship's seawater intake, the SBE 21 is connected to an AC-powered interface box positioned near the computer. The interface box provides power and an isolated data interface, and contains a NMEA 0183 port for appending navigation information to the data stream. For corrosion resistance, only plastic, titanium, and the glass/platinum cell are exposed to seawater. Valves control seawater circulation and fresh water flushing. The sensor assembly is easily removed for cleaning and calibration.

Documenti

Depliant
Brochure SBE-21 Thermosalinograph - Download

Manuale
Manuale SBE-21 - Download

Application Note
AN 02D: Instructions for Care and Cleaning of Conductivity Cells (03/14) - Download
AN 06: Determination of Sound Velocity from CTD Data - Download
AN 10: Compressibility Comp of SBE Conductivity Sensors (05/13) - Download
AN 14: 1978 Practical Salinity Scale - Download
AN 34: Instructions for use of Conductivity Cell - Download
AN 42: ITS-90 Temperature Scale - Download
AN 67: Editing Sea-Bird .hex Data Files - Download
AN 68: Using USB Ports to Communicate with Sea-Bird Instruments - Download
AN 70: Installing Anti-Foulant Device Mount Kit on SBE 4, 16, 19, and 21 Conductivity Cells - Download
AN 71: Desiccant Use and Regeneration (drying) - Download
AN 73: Using Instruments with Pressure Sensors at Elevations Above Sea Level - Download
AN 90: Absolute Salinity and TEOS-10: Sea-Bird's Implementation - Download
Guide to CTDs - Download
AN 93: CTD Basics - Download


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Externally powered, high-accuracy instrument, designed for shipboard determination of sea surface (pumped-water) conductivity and temperature.