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Acoustic Release KUMQuat

The acoustic releaser KUMQUAT is used in instrument carriers like landers, OBS-Systems as well as in complete moorings. After the research period an acoustic signal is sent down to the instrument and the releaser opens the hook. Optionally the rel

K.U.M. Umwelt- und Meerestechnik Kiel GmbH
Wischhofstr. 1–3
24148 Kiel
Germany
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Description

The acoustic releaser KUMQUAT is used in instrument carriers like landers, OBS-Systems as well as in complete moorings. After the research period an acoustic signal is sent down to the instrument and the releaser opens the hook. Optionally the release can also be effected with an integrated timer. Additionally the releaser is able to head for external instruments and to send replies to the deck unit. The releaser is available in lightweight version with 250kg release load and in heavy load version with 1000kg release load. A version for 12.000m waterdepth is also available.

Specifications

  • Year of initial introduction
    2003
  • Year of latest version
    2016
  • Main applications
    Moorings, Landers, Instrument Carrier, OBS (Ocean Bottom Seismometer), OBP (Ocean Bottom Pressure Recorder)
  • Field of Use
    Research (Gephysics, Earth Studies, Biology, ...), Oil & Gas (Exploration, Reservoir Monitoring, 3D-Seismics, ...), Tsunami-Warning
  • Battery type
    12 x Alkaline C-cells
  • Battery life [hr]
    20000
  • Length [cm]
    57
  • Diameter [cm]
    11
  • Weight in air [kg]
    11
  • Weight in water [kg]
    6.3
  • Housing material
    Titanium
  • Depth rating {m}
    6000 / 12000
  • Transmit frequency min. [Hz]
    7500
  • Receive frequency [Hz]
    12000
  • Transmit Source Level (dB re 1 μPa @ 1 m)
    190
  • Receive Sensitivity (dB re 1μPa)
    80
  • Transducer Beamshape
    omnidirectional
  • Safe Working Load (4:1) [Kg]
    2500
  • Transmit frequency max. [Hz]
    15000
  • Release Mechanism
    mechanical
  • Additional sensors
    Control of connected instruments via acoustics
  • Electrical trigger
    Y

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