Overhead Projector

MS 331 Operates on 220-240 volts 50Hz/5Amp/3Pin plug.Bright 600/250 watts halogen lamp with RSC base.Cabinet dimensions of overhead projector 305/305/290 mm.Weight of the instrument in cardboard box-ten kilograms.Accepts 250mm x 250mm of transparencies of work surface.Single miniscus/projection lens from white optical glass.Fresnel lens thermatically sealed by thermal bonding process.Front surface coated mirror in elevating device with lock. Ventilating fan, self lubricating balanced, away from operator.Electronic control knob for light intensity variations.Thermostat provided to safe guard against high temperature.Focus mechanism by smooth and sturdy rack and pinion motion All components used are interchangeable for replacement.Overhead Projector is available for sale in two popular models:With 220V-600W halogen lamp.With 24V-250W halogen lamp.Three safety characteristics:Opening of the top cover is possible, only after power supply hasbeen disconnected to prevent electrical shocks.Fan is connected directly with mains. In the event of fan motor failure or overheating, a thermostat is provided to safeguard theinstrument and fresnel lens.Safety fuse is interlocked with electronic control, which protectsthe lamp against voltage fluctuations.Standard Accessories:With 220V-600W halogen lamp.With 24V-250W halogen lamp.Three Safety Characteristics:a) Writing pack, consisting of 6 grease pencils, 3 different colour feltpens and one set square ruler and eraserb) Cellophone rollc) cleaning clothd) vinyl covere) detailed operating manual. The instrument is packed in sturdy carboardbox with accessories.Optional Accessories:Film slide and strip attachment.Overhead projector stand Transparent OHP mountsOHP permanent transparenciesCardboard mounts Halogen lampsCellophone rollPlywood cabinetTripod projection screenMap type & celling type scree