Underwater environments and subsea gear

Product catalog summary

Overview: The Small CTD Salinity Logger, known as DST CTD, is designed for ocean and gear monitoring, offering easy mounting, a wide salinity range, and antibiofouling features. It is suitable for marine biology, fisheries, and subsea gear applications.

Advantages:

Easy to mount on subsea gear and moorings due to its compact plastic protective housing.
Wide salinity range from 2 to 68 mS/cm, with an additional low conductivity range of 0.1 to 6 mS/cm.
Depth sensors available for various ocean depths: 150 m, 500 m, 1200 m, and 2400 m, with better resolution and accuracy at shallower ranges.
Antibiofouling copper grid device minimizes biofouling risk when left unattended for extended periods.

Technical Specifications:

Sensors: Conductivity (salinity), temperature, and depth. A CT version is available without depth measurements.
Size: 15 mm x 51 mm; with housing: 30 mm x 100 mm.
Conductivity Resolution: 0.03 mS/cm for wide range, 0.003 mS/cm for low range.
Conductivity Accuracy: +/-1.5 mS/cm for wide range, +/-0.15 mS/cm for low range.
Temperature Resolution: 0.032°C (0.058°F); Accuracy: +/-0.1°C (0.18°F); Response Time: 20 seconds to reach 63%.
Depth Resolution: 0.03% of selected range; Accuracy: +/-1% of selected range.
Memory Capacity: 87,217 measurements per sensor.
Measurement Interval: User-specified in seconds, minutes, or hours.
Communications: Wireless transmission via Communication Box; USB connection to PC.
Battery Life: 5 years (non-replaceable).

Catalog excerpts

Underwater environments and subsea gear-1

Ocean & gear monitoring Advantages at a glance Easy to mount on gear Wide salinity range • Shallow to deep ocean • Antibiofouling device • Marine biology • Subsea gear STAR: ODDI Logging Life Science

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Underwater environments and subsea gear-2

The small CTD is placed in a plastic protective housing which is easy to mount on subsea gear and moorings. The DST CTD can capture conductivity from 2 to 68 mS/cm. Low conductivity range of 0.1 to 6 mS/cm is also available. Choose between depth calibration ranges 150 m, 500 m, 1200 m or 2400 m. The shallower the range, the better the depth resolution and accuracy. CT logger version is available, if depth measurements are not needed. The copper grid is recommended for use with the DST CT and CTD when the logger is being left unattended for a month or longer. The copper grid minimizes the risk...

Open the catalog to page 2

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