Q-Aviation Q31WMX4 Offshore Control System X4

Zone 1 and 2 helideck control: six standard groups plus TD/PM and status light.

The Q-Offshore Explosion Proof Control System WEX4 controls the helideck lighting from one cabinet. It has six standard groups plus extra groups for the TD/PM system and the Q-Status Light System, all manually switchable, and is certified for IECEx and ATEX Zone 1 and Zone 2.

Six standard groups plus TD/PM and status light groups
IECEx and ATEX certified for Zone 1 and Zone 2
100-240 VAC from a C20A circuit breaker, glands included

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SPECIFICATIONS

Order code Q31WMX4, WEX4 explosion proof version

Groups Six standard, plus TD/PM and status light

Certification IECEx / ATEX Zone 1 and Zone 2

Supply 100-240 VAC 50-60 Hz from circuit breaker C20A

Enclosure Aluminium coated RAL7035, cable glands included

Description

A helideck's lighting is not one circuit. Perimeter lights, floodlights, the TD/PM circle, the status light, obstruction lights and the windsock all have to be switched, and they are not all switched together - the perimeter and TD/PM define the landing area, the floodlights are used selectively because they affect the pilot's night vision, the status light is driven by conditions rather than by choice. The control system is what organises that into something an operator can run.

The WEX4 provides six standard groups, plus extra groups for the TD/PM system and the Q-Status Light System, all of which can be manually switched on and off. Grouping the TD/PM and status light separately from the standard circuits is the right arrangement, because those two behave differently: the TD/PM is part of the landing area marking, and the status light is a warning driven by the installation's condition and its own controller. Q-Aviation note the status light controller can be built into the WMX series, which removes a separate cabinet and a separate set of terminations.

The certification is what makes this an offshore product. It is IECEx and ATEX certified for Zone 1 and Zone 2 hazardous areas, which means the cabinet can be mounted where the helideck actually is rather than in a safe area with long cable runs out to it. The enclosure is aluminium coated in RAL7035, cable glands are included and entry is from the bottom, which is correct for an outdoor cabinet - water finds any top or side entry eventually.

Electrically it takes 100-240 VAC at 50-60 Hz from a C20A circuit breaker, which is worth noting at design stage because it tells the electrical engineer exactly what to provide. There is a potential-free relay for signalling out to other systems - a control room panel, a SCADA point, an alarm system - so the lighting state can be reported rather than only observed. It is compliant with ICAO Annex 14 and CAP437.

Where an operator wants a graphical interface rather than switches, the WEX5 is the touchpanel version of the same system: a 15 inch 1024 by 768 XGA explosion-proof touch panel approved for hazardous classified locations, in a completely sealed IP65 stainless steel enclosure. The choice between them is genuine. Switches are unambiguous, work in gloves and have nothing to fail; a touch panel shows the whole deck state at once and integrates the HMS data. On a deck with an HMS and a repeater light system, the touchpanel usually earns its place.

Features

Six standard groups. Plus dedicated extra groups for the TD/PM system and the status light system.
Zone 1 and Zone 2 certified. IECEx and ATEX, so the cabinet mounts where the deck is.
Status light controller can be built in. Removes a separate cabinet when a complete package is supplied.
Bottom cable entry, glands included. The correct arrangement for an outdoor enclosure.
100-240 VAC from a C20A breaker. A specific supply requirement the electrical design can be built around.
Potential-free relay. Reports lighting state out to SCADA, a control room panel or an alarm system.
Aluminium RAL7035 enclosure. Coated for the offshore environment.
WEX5 alternative. A 15 inch XGA explosion-proof touch panel in sealed IP65 stainless steel, where a graphical interface is wanted.
ICAO Annex 14 and CAP437 compliant. Part of a certifiable helideck scheme.

Applications

One control system per helideck.

Offshore platform helidecks. The full lighting scheme from one cabinet.
FPSOs and drillships. Where the cabinet must sit in a classified area.
Jack-ups and semi-submersibles. Alongside an HMS and repeater lights.
Vessel helidecks. Bridge or control room operation of deck lighting.
CAP437 upgrades. Replacing ad-hoc switching with grouped, compliant control.
New helideck builds. Specified with the lighting as one package.

Support & Documents

PT Vivo Asia Teknologi Indonesia supplies weather and helideck monitoring as an integrated, commissioned system rather than as individual instruments. Our scope typically covers:

Selection against CAP 437, the relevant national requirement or your operator's standard.
Sensor siting to avoid the structure's own turbulence, exhaust and heat sources.
Signal, power and hazardous-area design across the deck and up to the control room.
Supply, installation, termination and commissioning.
Integration with the helideck monitoring system, status lighting and reporting outputs.
Calibration, periodic verification and ongoing maintenance.

Ranges, accuracies, approvals and electrical details vary by variant and are confirmed against the current manufacturer datasheet at quotation stage. Tell us the structure, the standard you are working to and the parameters you must report, and we will come back with a system design and a full bill of materials.

Use the enquiry button above for a datasheet, a specification or a project quotation.