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New fibre-optic amplifier from ifm electronic |
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Lighting up the darkest corners Long sensing ranges and fast switching characterise the new OBF500 series fibre-optic amplifiers. The well established OBF amplifier benefits from a complete rework offering more power while retaining the same housing. Designed for ifm’s extensive range of cut-to-length acrylic optical fibres, the new OBF offers a sensing range up to 2000mm using a through-beam fibre, or 100mm in diffuse mode. The new OBF is fast, too: the output can handle a switching frequency up to 3000Hz. As diffuse or through beam fibres can be used, light or dark switching is of course selectable. Cleverly though, the device itself recognises whether it is connected to a PNP or NPN input, the user does not need to specify the correct version. Sensitivity setting can be done automatically, by showing the unit the two different states, while the alternative manual method can be chosen if needed for a tricky task. A further useful feature of the OBF amplifier is the pulse stretch facility. As fibres often detect small objects the signal is present only fleetingly, so the user can stretch the output pulse up to 90ms to ensure that the plc input registers the signal. This DC device can be supplied with a fixed cable, an M8 connector, or the ever popular M12 connector. For further information on OBF fibre-optic amplifiers
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