Yes, vertical is usually preferable. In the presence of consistent currents and suspended sediment, we have seen instances where a horizontal conductivity cell is scoured by the abrasive effect of the flow. When scouring is particularly intense, the electrodes can be...
All Thetis models include an integrated GPS system. GPS acquisition times are typically less than 2 minutes. The GPS is only activated if a break-away condition has been detected.There is an option to integrate an autonomous (self-contained and powered) Iridium...
Very few Sea-Bird instruments completely fail due to component malfunction or manufacturing defects. However, we see a reasonably large number that require repairs of some sort. Most of these are simply due to the user breaking the equipment through rough handling,...
The Thetis system uses on board batteries (BlueFin Robotics, 1.5kW) for power.
Sea-Bird’s CTDs are not directly affected by adjacent objects, unlike some CTDs that shift their calibration due to proximity effects. However, the CTD can only measure the water it sees. There are 2 concerns to keep in mind when mounting the CTD:If the CTD is...
Our current depth operating specification for the Thetis Profiler is in water columns ranging from 5 to 100m in depth. The Thetis Profiler has been most rigorously testing in 50 m offshore of Newport, OR, though other systems have been deployed in several other...
While a CTD leak can result in a dangerous situation, it is not common. Pressure housings may flood under pressure due to dirty or damaged o-rings, or other failed seals, causing highly compressed air to be trapped inside. For example, a housing that floods at 5000...
It is not necessary to put the instrument in water to test it. It will not hurt the conductivity cell to be in air.If there is a pump on the instrument, it should not be run for extended periods in air.Profiling instruments (SBE 9plus, 19, 19plus, 19plus V2, 25,...
This topic is covered in detail on the UNOLS (University-National Oceanographic Laboratory System) website; see http://www.unols.org/publications/winch_wire_handbook__3rd_ed/06_wire_rope_em_cable_lub.PDF.
Sea-Bird typically recommends using the Dam/Blok and EverGrip products from PMI Industries. DamBlok makes the electrical splice and EverGrip provides the strain relief on the cable. See an example of how these products can be used.For a quick electrical...
We were so grateful for another successful year at Ocean Business in Southampton, UK. This year, we sent a cross functional team consisting of sales, marketing, science, service, and more, to ensure that we had a large associate group on-hand that could answer a...
Sea-Bird Scientific will soon be part of Veralto! We’re excited to share some news – later this year, Sea-Bird Scientific will be part of a new public company – Veralto! As you may know, Sea-Bird Scientific has been part of Danaher as our parent company since 2008. In...
Technical Forum in Partnership with Scripps Sea-Bird Scientific is eternally grateful for having had the opportunity to present at a Technical Forum to the Scripps Institute of Oceanography community on April 6, 2023. In this session, our optical experts, Cris...