Underwater environments and subsea gear

Product catalog summary

Overview: The DST CTD online is a compact salinity sensor designed for ocean and gear monitoring. It is suitable for use in underwater robotics and monitoring stations, offering a rugged, waterproof design.

Key Features:

Compact size: Only 8 cm long.
Wide conductivity range: 2 to 68 mS/cm, with a low range option of 0.1-6 mS/cm.
Depth calibration options: 150 m, 500 m, 1200 m, and 2400 m.
Subsea cable: Standard length of 0.6 m, extendable up to 25 m.

Technical Specifications:

Size: 22.4 mm x 80 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 for low range.
Depth resolution: 0.03% of selected range.
Depth accuracy: +/-1% of selected range.
Power requirements: 3.3 V DC supply, max power draw of 5 mA.

Connection and Communication:

Direct connection to a microprocessor with 3.3 V Vcc.
RS232 communication protocol.
For systems with USART, a transceiver chip is required for voltage level adjustment.

Applications: Ideal for use in underwater robotics and monitoring stations due to its robust design and wide range of operational capabilities.

Catalog excerpts

Underwater environments and subsea gear-1

Ocean & gear monitoring Advantages at a glance • Connects to a subsea device • Wide conductivity range • Shallow to deep ocean • Underwater robotics • Monitoring stations

Open the catalog to page 1

Underwater environments and subsea gear-2

The housing is ruggedly designed, fully waterproof for use on underwater vehicles and monitoring systems. The sensor comes with a 0.6 m long subsea cable. Longer cable is available upon request, max 25 m. The CTD online measures over a wide conductivity range from 2 to 68 mS/cm. A low conductivity range, 0.1-6 mS/cm, is also available. Choose between depth calibration ranges 150 m, 500 m, 1200 m or 2400 m. For more technical details, an instructions manual for connection to an embedded system is readily available.

Open the catalog to page 2

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