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Vaisala Maritime Observation System MAWS410

Maritime Observation System MAWS410 for The unique Maritime Automatic Weather station designed for marine environment - smart and timely decisions on weather critical issues


    In continuation of the successful adaptation of automatic data collection and processing systems for maritime applications, Vaisala has developed the new generation Vaisala Maritime Observation System MAWS410 covering the most demanding maritime weather observation requirements of moving platforms and fixed offshore installations.

    The Vaisala Maritime Observation System provides you with continuous 24-hour automatic shipboard weather observations. Direct satellite communication links can be used to send coded meteorological data sets to the global network, in real-time.

    Intended to be set up on Voluntary Observing Ships (VOS) the system measures, observes and calculates all the basic surface weather parameters including wind speed and direction, atmospheric pressure, air temperature and humidity, and elements related to the position, course and speed of the ship. For the most accurate true wind calculation the vessel's own gyro compass and navigation system are used providing the required heading and ship's speed, direction and location information.

    The MAWS410 system has passed a demanding environmental and EMC test program, which guarantees that the system exceeds the requirements of IEC-60945 and Lloyd's Register's type approval system, both internationally respected marine standards.

    Technical Specifications

     Technical Specifications


    Data Collection Platform
    ​Vaisala Data Logger QML201A
    Operating *)
    ​-50 ... +60 °C (-58 ... 140 °F)
    ​-50 ... +70 °C (-58 ... 158 °F)
    ​Humidity ​0 ... 100 % RH

    ​ ​In compliance with Lloyd’s Register (LR) Type Approval System, Test Specification Number 1; 2002, Performance and Environmental Test Specification for the Environmentally Tested Products used in Marine and Offshore Applications, and IEC 60945 International Standard, 4th edition, 2002-08, Maritime Navigation and Radiocommunication Equipment and Systems - General Requirements Methods of Testing and Required Test Results, as follows:

    ​Vibration ​IEC 60068-2-6/IEC 60945
    ​Shock MIL-STD-202G, Method 213B, cond. J
    ​Earthquake ​NEBS/Bellcore GR-63-CORE, risk-zone 4
    ​Dry heat ​IEC 60068-2-2/IEC 60068-2-48
    ​Damp heat ​IEC 60068-2-30, Test Db
    ​Extreme conditions ​IEC 60068-2-3, Test Ca
    ​Low temperature ​IEC 60068-2-1 Test Ab/Ad
    ​Rain & spray IEC 60529/IEC 60945
    ​Corrosion & salt mist ​IEC 60068-2-52, Test Kb
    ​Conducted LF immunity ​IEC 61000-4-16
    ​Conducted RF immunity ​IEC 61000-4-6
    ​EFT immunity ​IEC 61000-4-4
    ​Surge immunity ​IEC 61000-4-5
    ​ESD immunity ​IEC 61000-4-2
    ​Dielectric tests ​IEC 60947-2
    ​Conducted emissions ​CISPR 22 **)
    ​Radiated emissions ​CISPR 22 **)
    ​RF field immunity ​IEC 61000-4-3
    ​Insulation resistance ​IEC 60092-504
    ​Power supply short term variation immunity ​IEC 61000-4-11
    ​Power supply failure immunity ​IEC 61000-4-11/IEC 60092-504
    ​Compass safe distance ​ISO 694 and IEC 61000-4-8

    ​Materials ​Acid-proof stainless steel

    ​Anodized sea aluminium

    ​Mast ***) ​Tiltable 2/3/4 m pole mast
    ​Enclosure ​400 (H) x 300 (W) x 200 (D) mm
    ​Weight ​Enclosure approx 10 kg

    ​Mast with sensors approx. 20 ... 30 kg
    ​Powering ***) ​90 ... 264 VAC, 45 ... 65 Hz

    ​8 ... 14 VDC recommended (30 VDC max.)
    ​Internal battery ​7 Ah/12 V
    ​Battery regulator Charge/recharge control

    ​Temperature compensation

    ​Deep discharge protection

    ​Simultaneous inputs from solar and AC power allowed

    Data validation, calculations and reports

    ​Data quality control
    ​Upper/lower climatological limits ​Step change validation

    ​Sensor status indication

    ​Statistical calculations ​Averaging over user set periods

    ​Minimum/maximum values

    ​Standard deviation

    ​Cumulative values
    ​Other calculations ​Dew point

    ​QNH, QFE, QFF, pressure tendency

    ​True & relative wind, wind selection (upwind)

    ​Corrections for elevation & magnetic variation
    ​Message inputs/outputs

    ​NMEA 0183 MVW/XDR message output

    ​NMEA 0183 HDT/RMC/VTG/GLL message input
    ​Weather data reports (w/ Vaisala Observation Console sw)

    ​WMO FM 13

    ​WMO IMMT-3

    ​Custom reports

    Standard sensor options ***)

    ​Wind speed & direction ​WINDSONIC, WMT50, WS425
    Atmospheric pressure ​PMT16A
    ​Air temperature, relative humidity & dew point ​QMH102, HMT330
    ​Rain/precipitation ​Model 50202, DRD11A
    ​Water temperature ​DTS12W
    ​Solar radiation/sun duration ​CMP3, CMP6, CMP11, CUV4, SD4
    ​Digital compass ​QCO201
    ​Position and time ​Position and time

    Standard communication options ***)

    ​Satellite communication Iridium, Inmarsat-C, Argos/SCD
    Wireless communication
    ​Landline communication ​RS232, RS485 bus, PSTN, Fixed line, LAN, Optical fibre
    Data displays
    ​DD50, WD30(TU), WD50, Pocket/Laptop/Tabletop PC

    ​ ​*) for further extended range, please contact Vaisala
    ​ ​**) limits according to IEC 60945
    ​ ​***) for other mast, solar powering, sensor and communication options, please contact Vaisala
    Related Services
    • Warranty 
    • All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment.
    • Service Center Repair  
    • If your instrument requires repair.