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Kongsberg Maritime EA640

EA640 - single beam echosounder to full ocean depths

EA640 is a high performance hydrographic wideband single beam echo sounder. The EA640 is developed for hydrographic use in deep to medium depth waters.

  • Kongsberg Maritime EA640
Kongsberg Maritime
Strandpromenaden 50
3191 Horten
Norway
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Description

EA640 features

  • Applications from extreme shallow to full ocean depths
  • High performance hydrographic depths from 12 kHz to 500 kHz
  • Available with high power output from 10 kHz to 50 kHz
  • Extensive range of transducer interfaces, both Kongsberg transducers and thirdparty transducers
  • CW and FM pulse forms
  • True raw data logging
  • World class bottom detection
  • Bottom slope information
  • Sound velocity compensation from profile
  • Bottom gain to enhance the sub-bottom information
  • Spectrum information for noise measurements
  • Map display to track your coverage
  • Windows 10

Wideband hydrographic echo sounder for full ocean depths

EA640 is a high-precision deep-water hydrographic single beam echo sounder for use in all water depths, from very shallow to full ocean depths. Using the WBT wideband transceiver unit it simultaneously operates with several different transducers ranging from 12 kHz for the deepest waters up to 500 kHz for very shallow depths. For low frequency transducers below 50 kHz the WBT is available as a high-power system, ensuring enough transmitted power to reach the deepest spots of the ocean. World class bottom detection algorithms ensures reliable high-precision depth determination. Bottom slope information is also provided.

Specifications

  • Year of initial development
    1998
  • Min. external DC power [V]
    12
  • Max. external DC power [V]
    15
  • Min. external AC power [V]
    110
  • Max. external AC power [V]
    220
  • Weight in air [kg]
    5
  • Width [m]
    0.438
  • Length [m]
    0.213
  • Height [m]
    0.084
  • Portability
    Portable
  • Software platform
    Tablet PC, Windows Mobile, Other
  • Max. depth of operation [m]
    11000
  • Min. frequency [kHz]
    10
  • Max. frequency [kHz]
    500
  • Number of simultaneous frequencies
    4
  • Min. power output [W]
    50
  • Max. power output [W]
    2000
  • Depth resolution [m]
    0.01
  • Min. pulse length [ms]
    0.032
  • Max. pulse length [ms]
    16
  • Software
    EA640 software
  • Ping Rate
    Max 40 per second
  • Pulse lengths and maximum resolution
    500 kHz: CW 32 to 512 µs, FM, accuracy: 0.3 cm • 200 kHz: CW 64 to 1024 µs, accuracy: 0.6 cm • 38 kHz: CW 256 to 4096 µs, accuracy: 2.4 cm • 15 kHz: CW 512 to 8192 µs, accuracy: 4.9 cm • 10 kHz: CW: 1 to 16 ms, accuracy: 9.8 cm
  • Remote operation capability
    Y
  • Supported external data inputs
    heave, position, roll & pitch, tide
  • Marking of events and other annotations
    Y
  • Real-time sound velocity and temperature profile inclusion
    Y
  • Real-time coupling to survey/post-processing software
    Y
  • Data displayed in real time
    Depth; along-track slope; second layer detection with high/low frequency
  • Data output options
    Raw; corrected echogram data
  • Data output formats
    NMEA; Supported datagram formats for depth output: DBS, DBT, DPT; Simrad, Atlas and Hymas; Export file formats: Raw data, xtf, SEG-Y, xyz, echogram and EA400 formats
  • Connectors
    LAN, RS232, USB
  • Internal data logging details
    HDD
  • Main use of the system
    Shallow to deep water hydrographic surveys. May also be used for sidescan sonar survey, sub-bottom profiling and hydrophone applications
  • Display range
    1 to 12500 m
  • Transducer range
    10 kHz to 500 kHz
  • Sub-bottom range
    10 khz to 30 kHz
  • Transceiver
    Ethernet communication
  • Ethernet
    Ethernet to ship’s network
  • Sensors
    GPS, gyro, motion, speed, temperature, and sound speed
  • Remote control
    Remote stop/start logging available on serial line or network
  • Main control
    Mouse, trackball or touch screen on a comprehensive menu system
  • Menu languages
    English, German, French, Icelandic, Norwegian, Spanish
  • Min. operating temperature [°C]
    0
  • Max. operating temperature [°C]
    50
  • Min. storage temperature [°C]
    -40
  • Max. storage temperature [°C]
    70
  • Relative humidity
    5 to 95% relative non-condensing

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