CAP437 explosion proof LED helideck touchdown/positioning light panel used in conjunction with a control panel and the the touchdown/positioning marking (Circle). Long life LEDs and light weight design, which is suitable for direct mounting on the helideck due to the low profile (<25mm), makes the product ideal for the environmental conditions as well as easy installation.


Key features

  • Panel used for helideck touchdown/positioning system; ‘circle’
  • Suitable for Zone 1 and 2 areas with gas explosion hazard
  • Low profile design (<25mm) allows direct mounting on helideck
  • Offshore resistant, fully sealed, high quality marine plastic materials
  • Semi-flex construction to allow for deck distortions and improved impact resistance
  • Stainless steel (SS316) mounting brackets to prevent corrosion problems, and integrated cable connection
  • State of the art high power LEDs and technology provide superior life and reliability
  • Fully offshore trialled to meet the operational and environmental requirements

Physical characteristics

  • Dimensions (L x W x H):
    503 x 290 x 24mm
  • Weight: 0.8kg
  • Degree of protection: IP66, IP67 and IP69
  • Operating temperature range:
    -25°C to +55°C


  • Certified to CAA-UK CAP 437; 9th edition appendix C
  • ABS Certificate Product Design Assessment- Orga CAP437 TD/PM Circle-H System – 20-2004182-PDA
  • EN 60079-0, EN 60079-7, EN 60079-11 and EN 60079-18
  • DEKRA 11ATEX0186; ATEX II 2 G Ex e mb [ib] IIC T6 Gb
  • IEC 60079-0, IEC 60079-7, IEC 60079-11 and IEC 60079-18
  • IECEx DEK 11.0072; Ex e mb [ib] IIC T6 Gb
  • ABNT NBR IEC 60079-0, ABNT NBR IEC 60079-7, ABNT NBR IEC 60079-11, ABNT NBR IEC 60079-18
  • NCC 23.0080; Ex eb mb [ib] IIC T6 Gb (optional)

Performance characteristics

  • Steady burning; yellow
  • Effective intensity: 0-10° max. 60cd; 10-20° max. 45cd and 20-90° max. 15cd
  • Horizontal beam coverage: 2×160°
  • Vertical beam profile: in compliance with above mentioned CAA requirements
  • Colour chromaticity within the boundaries as specified by CAA

Electrical characteristics

  • Operating voltage: Low (10-15V) DC input from Orga control panel
  • Power consumption: 1.5W average
  • Connection details: Orga custom offshore

System design, control and monitoring

  • Fault monitoring with fail indication via separate system control and monitoring box (see separate data sheet)
  • Custom designed cables with vulcanized cable termination protection and captive connection screws; multiple lengths to allow for all configurations