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MIDAS Surveyor GPS Echosounder

Product code : 1489649428

The MIDAS Surveyor has been designed to offer a low cost solution for small scale hydrographic surveys. The system is supplied with a 210kHz transducer as standard, and uses Valeport's own advanced digital signal processing techniques to ensure high accuracy and reliable bottom tracking. With an integral SBAS enabled DGPS receiver, the MIDAS Surveyor will log position and depth data for over 30 hours, as well as performing on-line correction using external heave and tide data inputs. Options include an additional 33kHz transducer, or high accuracy 16 channel DGPS receiver.

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    he MIDAS BathyPack is one of Valeport's premier MIDAS 
    products, using state of the art sensors to generate precision 
    Sound Velocity and Density profiles for highly accurate depth 
    and height data. The simple top-end PC software, BathyLog, 
    also allows all profile data to be used to monitor and correct 
    multiple miniIPS pressure sensors, giving you the complete 
    picture with one integrated sensor suite. 




    Robust, accurate inductive cell. Digital sampling technique means no more 
    field calibrations. 

    Range: 0 - 80 mS/cm 
    Accuracy : ±0.01 mS/cm 
    Resolution: 0.002 mS/cm 
    Fast response PRT with guard. 
    Range: -5 to +35 °C 
    Accuracy: ±0.005 °C 
    Resolution: 0.002 °C 

    Revolutionary temperature compensated piezo-resistive sensor; all the 
    performance of a resonant quartz sensor but with long term stability and 
    better durability. No more oil! 
    Range: 10, 30, 100, 300 or 600Bar 
    Accuracy: ±0.01% range 
    Resolution: 0.001% range 
    Sound Velocity 
    Valeport’s digital time of flight sensor - the most accurate SV sensor in the 
    Range: 1375 - 1900 m/s 
    Accuracy: ±0.02 m/s 
    Resolution: 0.001 m/s 
    BathyPack accepts a variety of industry standard devices. Typical 

    Frequency: 500kHz 
    Range: 0 - 50 m (6000m depth rating) 
    Resolution: 1mm 

    Density: EOS-80 Equation of State of Seawater 
    Salinity: PSS78 Practical Salinity Scale 
    Depth: UNESCO Pressure/Depth Relationship 
     or Simplified "Mean Density" Correction 
    Data Acquisition 
    Data Sampling: 2Hz 
    Lookup Table: 6000 points (1m res. @ max depth) 
    Sampling Sequence: Synchronous 

    MIDAS BathyPack 
    Datasheet Reference: MIDAS BathyPack version 2A, Feb 2011 

    The instrument will operate by direct communications with PC before 
    and after deployment. It also operates in real time, with a choice of 
    communication protocols for a variety of cable lengths, all fitted as 
    standard and selected by pin choice on the output connector: 

    RS232 Up to 200m cable, direct to serial port via USB 
    RS485 Up to 1000m cable, addressable half duplex 
    Baud Rate: 2400 - 115200 
    Protocol: 8 data bits, 1 stop bit, No parity, No flow control 

    External Power: 12 - 30vDC 
    Power: Nominal 4W max 
    Connector: Subconn MCBH10F 

    Materials: Titanium housing, polyurethane, composite and 
    polycarbonate sensor components 
    Depth Rating: 6000m (may be limited by pressure sensor) 
    Instrument Size: 88mmØ x 425mm long 
    Weight: 6kg 
    Shipping: 74 x 35 x 27cm, 13kg 

    System is supplied with BathyLog Windows based PC software, for 
    instrument setup and data display. BathyLog is licence free. 

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