New Wave Media

January 20, 2016

Nortek Debuts 250 kHz Signature System

Signature250 (Image: Nortek)

Signature250 (Image: Nortek)

Nortek announced that its new mid-range profiler Signature250 is now in production. The instrument has an optional center beam for the patented SUV wave measurement mode, which means it can be deployed on subsurface buoys at depths as great as 150 meters.

With the latest product launch, the Signature family now includes instruments covering ranges from less than 1 meter to greater than 1,000 meters (frequencies of 1,000, 500, 250 and 55 kilohertz), enabling the Signature series to cover most needs and requirements in terms of range and application.
With a specified current profiling range of 200 meters, the new Signature250 opens up new measurement possibilities, according to the manufacturer. Additionally, with the optional fifth beam, it has the capability of measuring ice thickness, ice drift and directional waves from an installation depth of up to 150 meters. All of this is possible with the same energy-saving technology as the rest of the Signature series products.
The new instrument’s features were developed around the needs of scientists and engineers working both within academia and in the offshore industry, Nortek said.
One possible application is accurate measurements from subsurface buoy mounts. Here, changes in buoy position is managed by special measurement modes for both ice and waves. The optional fifth beam (Acoustic Surface Tracking – or AST) is optimized by depth so that buoy draw-down is not an issue and directional wave measurements are unaffected by buoy rotation. This is possible thanks to Nortek’s patented SUV measurement mode (US Patent 7,352,651).
Nortek said Signature250 is a rugged, robust system optimized for operational users, also offering innovation in data investigation capabilities and accuracy to scientific researchers.
NortekUnited States
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