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.

General
Data Collection Platform		Vaisala Data Logger QML201A
Temperature
Operating *)		-50 ... +60 °C (-58 ... 140 °F)
Storage		-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
		Plastic
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
			Cross-check
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		UHF, VHF, GSM, GPRS
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