EML-900

Measurement Principle: Based on Faraday’s law of electromagnetic induction

Measurement Parameters:

• Speed Range: Multiple ranges available, including -4 to 20 knots, -5 to 25 knots, up to -13 to 65 knots (depending on sensor configuration)

• Transverse Speed: ±6.5 knots (applicable for dual-axis sensors)

• Distance Measurement: 0 to 999,999.99 nautical miles

• Resolution: 0.1 knots for speed, 0.01 nautical miles for distance

• Accuracy: Longitudinal Speed: ±2% of ship's speed or ±0.2 knots, whichever is greater

• Distance: ±0.2 nautical miles per hour or ±2.0%, whichever is greater

• Transverse Speed (Dual-axis): ±2% of ship's speed or ±0.2 knots, whichever is greater

• Direction of Movement (Dual axis): Less than ±2.5°

Sensor Types:

• Single-axis Sensors: MLT331 (φ35 sensor), MLT341 (φ48 sensor)

• Dual-axis Sensor: MLT342 (φ48 sensor)

• Sea Valve Options: Various sea valve configurations available to accommodate different hull designs, including MLV231, MLV240, and associated mounting plates

Master Indicator:

• Model: MLH533

  • Display: 3.5-inch color display with shortcut keys for improved visibility and usability

  • Power Supply: 100 to 220 V AC, 50/60 Hz

  • Power consumption: 160 VA (maximum)

  • Environmental Conditions: Operating Temperature: -15°C to +55°C

  • Humidity: 0 to 93% RH

  • Vibration: 2.0 to 13.2 Hz (full amplitude 2 mm), 13.2 to 100 Hz (7 m/s²)

  • Protection Ratings: Junction Box

  • Sensor Top: IP56

  • Sensor Bottom: IPx8

Other Components: IP22

• Interfaces:

  • Analog signal output (voltage and current)

  • Pulse signal output (photo coupler/photo relay)

  • Serial signal output (IEC61162-1)

  • Interfaces with GPS (for backup) and Gyro compass (for additional functions)

• Compliance:

  • Conforms to IMO Resolution A.824(19) and MSC.96(72)

  • Type approval issued by the Transport Ministry of Japan (Certificate number: MEDB00005J2)

• Additional Features:

  • Built-in self-diagnostic function

  • Error indication with detailed information accessible via the menu screen

  • Error log function included

  • Reduction in the number of parts by employing highly integrated circuits, enhancing reliability