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NAV-IS: Navigation Information System

EN60945 Combined EM Log& Meteorological System

EN60945 Combined Log & Meteorological System

Nav-IS

Maritime Panel Computer (MPC)

Nav-IS 10.4 solid state EN60945 panel mountable MPC provides control of the LOG system, simulated speed entry, calibration and configuration parameter and data entry.

MPCs are configurable to allow either a single page or multiple pages of OWN ships data information, such as Heading, Roll, Pitch, Ship speed, Distance, Wind Speed, Wind Direction, Air pressure, Air / Sea Temperature, Depth, etc when provided with appropriate NMEA data message on their input are all available at no additional cost.

Maritime Panel Computer (MPC)

Nav-IS Additional MPCs can be added to the system easily.

A page customisation service available from AMI where the pages may be designed with the customer input to meet a particular requirement.

AMI Log / Met Windows GUI Programme

For systems where MPC not desiredMain Electronic Unit

Nav-ISStandard Output Summary Serial data outputs to NMEA 0183 version 2.3/3.01 RS422 Buffered, containing log, wind, temperature, humidity and pressure data messages interleaved. Update rate 1Hz.

Simulated potentiometer

Four user selectable potential free contacts for any combination of 100,200 or 400 pulses per nautical mile.

Other outputs can be designed to customers special requirements

Main Electronic Unit

Nav-ISInputs Serial RS422 data inputs to NMEA 0183 version 2.3/3.01 for ships heading (HDT packet) used for the calculation of true and apparent wind speed direction

115V 50/60Hz 150VA Maximum for the system

15V DC power output for wind and other MET sensor supplies.

Data inputs from Meteorological sensors as part of the system (3 x digital + 1 x Analogue)

Main Electronic Unit

Nav-ISData Formats Log: The system will also transmit forward, athwartships speed and forward distance with alternative strings in NMEA2.3/3.01 at 1Hz and will be of the form VBW: Dual ground / dual axis water speed, with ground speed set to invalid), VLW: Distance travelled through the water

Wind & Met: The system will transmit Wind and meteorological information in NMEA version 2.3 format at 1Hz.

Ships Speed Electromagnetic Sensors

Nav-IS Available in either fixed flush mounted (dual axis forward and athwartships in a coffer dam arrangement i.e. no gate valve) or fully in board retractable with a gate valve (single or dual axis forward speed) formats

Speed range: -10 to +30 knots (+40 for high speed version)

Accuracy: With flush probe after calibration: Forward speed: 0 to 10 Knots: 0.2 knots.Above 10 knots: 2%

Athwartships: Typically 0.25 knots for 0-10 knots* A fin type protruding sensor can also be fitted than will improve accuracy to 0.1 knot for 0-10 knots and 1% for speeds above 10 knots.

Wind Speed and Direction Sensor

Nav-IS Commercial solid state 316 stainless steel ultrasonic sensor

Maintenance free and reliable operation

De-icing heaters are built in to provide continued performance at sea under heavy icing conditions.

Two sensors are generally recommended to be fitted port & starboard sides with automatic change over to select windward sensor.

Wind Speed and Direction Sensor

Nav-ISPerformance: Wind speed: 0-65m/s (approx 130knots)

Wind speed accuracy: 2, 1% rms typical accuracy to 30 knots

Wind direction: 0-359

Accuracy 2 Resolution 1

Operating Temperature: -40C to +70C

Humidity: 5% to 100% RH

Alternative Low Cost Anemometer

Nav-IS Robust, corrosion free polycarbonate housing ultrasonic sensor

Maintenance free and reliable operation

NMEA 0183 + 2 analogue outputs

Low power consumption

Two sensors are generally recommended to be fitted port & starboard sides with automatic change over to select windward sensor.

Alternative Low Cost Anemometer

Nav-ISPerformance: Wind speed: 0-60m/s (approx 116 knots)

Wind speed accuracy: 2% @ 12 m/s

Resolution 0.01 m/s (0.02 knots)

Wind direction: 0-359

Accuracy 3 @ 12 m/s Resolution 1

Operating Temperature: -40C to +70C

Humidity: 5% to 100% RH

Temperature and Humidity Sensor

Nav-IS Solid state commercial air temperature and air humidity sensor with multi plate radiation shield

Radiation shield provides naturally aspirated environment for the sensors to minimise the effects of solar radiation, which is UV stabilised for long term external exposure

Dew point is also available (calculated from pressure, temperature and humidity being displayed on the MPC)

Temperature and Humidity Sensor

Nav-ISPerformance: Temp sensor range: -40 to +70C

Accuracy: 0.3C at 25C (0.4C over +5 to +40C)

Humidity Sensor Range: 0-100%

Accuracy at 25C: 2% RH over 10-90%; 4% over 0-100%

Stability: Better than 1%RH per year

Recommended position: Behind bridge or in walkway in free flow air environment, but semi sheltered away from excessive salt spray

Barometric Air Pressure Sensor

Nav-IS Barometric air pressure sensor is mounted inside the Nav-IS Main Electronic Unit

Performance: Operating Range: 500 to 1100hPa Output signal: Serial RS232 / RS485 Accuracy: 0.05% of pressure range (or 0.2hPa at 25C) A vent pipe and adaptor are provided in the Nav-IS enclosure if fitted within an air-conditioned or pressurised ships compartment.

Sea Water Temperature Probe

Nav-ISOperating Range -5C to +45CAccuracy 0.3C

System Options

Nav-IS EM Log only with desired sensor, i.e. fixed flush, retractable with gate valve or fin type, including 10.4 Maritime Panel Computer (MPC)

EM Log only with desired sensor excluding 10.4 Maritime Panel Computer but supplied with a GUI program (AGI.exe file that runs on Windows) to enable Log speed and calibration data to be displayed / entered on a PC

Note: the Nav-IS has Wheelmark approval for the EM Log supplied with either the MPC or just with the GUI PC program

Combined EM log & Meteorological System with MPC

Combined EM Log & Meteorological System with the GUI program only and no MPCAdvantages of Commercial Nav-IS EN60945 Log and Met System

Nav-IS Competitive EN60945 / EN61023 certified system* designed on proven technology and products that are already in service in many Navies world wide

High levels of accuracy

Very low maintenance requirements

EM Log data as well as Meteorological data is displayed on the same MPC utilising different pages which offers both space and cost savings over dedicated repeaters

Complete range of Meteorological sensors including Wind, Air Temperature, Humidity, Air Pressure, Sea Temperature*All testing completed and final Wheelmark certificate expected September 2011.Advantages of Commercial Nav-IS EN60945 Log and Met System

Nav-IS Large range of standard MPC pages for displaying Log, Wind and Meteorological data in both analogue and digital form for no additional cost, which provides space and cost saving benefits in terms of initial and through life costs compared to individual dedicated repeaters

Further MPCs can easily be incorporated into system in order to display the required data in different ship locations, driven from the serial NMEA messages*All testing completed and final Wheelmark certificate expected September 2011.

AMI Marine (UK) LtdUnit 2 Tower Industrial Estate, Tower Lane, Eastleigh, Southampton SO50 6NZUK

Tel: +44 (0)2380 480 450Fax: +44 (0)2380 480 451sales@amimarine.netwww.amimarine.net