DEIF 879.50 ANEMOMETER WIND METER

The DEIF 879.50 is a classic, high-durability wind direction indicator often paired with the 879.3C anemometer sensor. It is a staple on commercial vessels and is frequently sourced as a reliable "ready-to-install" unit from ship-breaking hubs like Bhavnagar and Alang.

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PRODUCT DATA SHEET: DEIF 879.50 WIND DIRECTION INDICATOR

PRODUCT OVERVIEW

The DEIF 879.50 is a marine-grade digital wind direction indicator designed for permanent installation on a ship’s bridge or control station. Part of the renowned 879 Wind Measuring System, the .50 model serves as the primary visual interface for the navigator. It combines a digital readout for wind speed with a circular LED array for instantaneous wind direction. Built to meet the rigorous demands of the maritime environment, it is known for its high accuracy, robust construction, and ease of integration with existing NMEA navigation suites.

TECHNICAL SPECIFICATIONS

Model: DEIF 879.50 (Indicator Unit)

Display Type: Circular LED (Direction) + 3-Digit LED (Speed)

Speed Units: Selectable (m/s, knots, or Beaufort)

Direction Accuracy: +/- 2.5°

Input Signal: Analog (from 879.3C sensor) or NMEA 0183 (from external talker)

Output Signal: NMEA 0183 (MWV sentence for Radar/ECDIS integration)

Power Supply: 110V / 220V AC (50/60 Hz)

Dimensions: Standard 144 x 144 mm (DIN rail or flush mount)

Housing: Robust, corrosion-resistant casing (IP52 Front / IP20 Rear)

Operating Temp: -15°C to +70°C

KEY FEATURES & APPLICATIONS

Clear Visual Layout: The "double-circle" LED array provides an intuitive 360° view of relative or true wind direction, while the central digital display provides precise wind speed data.

Integrated Dimmer: Features a front-panel dimmer control, allowing the navigator to adjust brightness for optimal visibility during night watches or in direct sunlight.

System Versatility: Can operate as a "Master" unit directly connected to the wind sensor or as a "Slave" unit receiving data from another indicator or NMEA source.

Reliable Performance: Designed without moving parts in the display unit itself, ensuring it is unaffected by the vibrations and shocks common on large commercial vessels.

Bridge Integration: Provides an NMEA 0183 output to feed wind data directly to the vessel's Radar, ECDIS, or VDR (Voyage Data Recorder).

Master/Slave Configuration: Multiple 879.50 units can be daisy-chained to provide wind data at various locations, such as the main bridge, bridge wings, and the engine control room.

TYPICAL CONDITION (USED/REFURBISHED)

Component Check: Refurbished sets typically include the 879.50 Indicator and are often bundled with the 879.3C Anemometer Sensor.

Quality Testing: In the used market, units are typically tested for LED segment clarity (no dead spots) and the responsiveness of the internal transformer (220V/110V).

Maintenance: These units are highly valued as "drop-in" replacements for older vessels because they utilize standard cutout dimensions and traditional AC power inputs.

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