Marl has announced a tougher LED panel lamp with the introduction of a new hard anodised indicator, sealed to IP68 for tough, wet and dirty environments including marine and industrial applications. The new 8.5mm mounting indicator works at pressures up to 10psi and is well protected against corrosive fluids such as sea water as well as against shock and vibration.
The Marl 665 series features a hard black anodised aluminium housing, a domed, shatterproof polycarbonate colour diffused lens assembly, IP68 sealed enclosure as well as a PTFE “top hat” design panel seal to ensure the correct mounting to panel. The indicator features a unique hexagonal bezel to aid mounting and a range of high intensity sunlight readable LEDs is offered in red, yellow, green, blue or cool white. Internal circuitry is designed to operate at 2Vdc - 20mA. Terminations are achieved by 150mm of colour coded flying leads in accordance with Def Stan 61/12 part 18 chemical and flame retardant.
Key features include the aluminium housing, which is hard anodised in accordance with Def Stan 03-26 (50 microns), the self lubricating PTFE seal ensuring indicator centralisation, panel seal to IP68 and the internal potting medium which is cured under vacuum to ensure no air voids are present within the indicator assembly. Mean Time Between Failure (MTBF) for this family is quoted at over 100,000 hours. The indicator comes complete with full mounting hardware. Future developments include a voltage range up to 75Vdc, smoked lens assembly for exceptional on/off contrast ratio and alternative housing materials to suit bespoke applications.