The fog detector (visibility meter) provides automatic activation of the foghorns at preset meteorological conditions and can be used in conjunction with the Navaid Central Control Panel (NCCP).

Orga Offshore – Datasheet Drawing – VDX05xx – r1-02
Orga Offshore – Datasheet Drawing – VDX05xx – r1-01
Orga Offshore – Datasheet Drawing – VDX05xx – r1-03

Key features

  • Reliable visibility meter / fog detector
  • Low cost of ownership
  • Certified for Zone 1 areas with gas explosion hazard
  • Continuous visibility metering to trigger foghorns and/or lights
  • Designed to meet the harsh offshore environment (salt, water etc.)
  • Robust, Electropolished stainless steel 316, light weight design, suitable for pole mounting. Mounting pole available as option.
  • Easy to install with spacious, easy to open junction box for quick opening and cable connection (opening by just 4 stainless steel retaining bolts)

Electrical characteristics

  • Operating voltage: see table
  • Power supply connection details: max. 4 mm²; two M25x1.5 cable gland entries
  • Earth connection: internal M5 and external M6
  • Over-voltage protection provided


  • Cenelec EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-18
  • KEMA 05ATEX2189; ATEX Ex ll 2G Ex db eb mb llB T5 Gb
  • IEC60079-0, IEC60079-1, IEC60079-7 and IEC60079-18
  • IECEx DEK 11.0104; Ex db eb mb IIB T5 Gb
  • ABNT NBR IEC 60079-0, ABNT NBR IEC 60079-1 and ABNT NBR IEC 60079-7 (optional)
  • Inmetro NCC 13.1771 (optional)

Performance characteristics

  • Back scatter operating principle
  • Laser LED long life light source, class 3R
  • Range: 20 to 10,000 meter /
    0.01 to 5.4 NM
  • Measurement time interval 60 s
  • Software controlled anti-dew window heater

Physical characteristics

  • Dimensions (L x W x H):
    475 x 150 x 314 mm
  • Weight: 20 kg
  • Degree of protection: IP66
  • Operating temperature range:
    -40° C to +55° C
  • Designed for pole mounting outer diameter
    Ø 52 mm

System design, control and monitoring (optional)

  • Prepared for Orga’s future comprehensive remote integrity monitoring system
  • Self monitoring of basic functions as a standard