Long sensing ranges and fast switching characterise the OBF500 series
By admin at 28 June, 2009, 3:27 pm
The OBF amplifier benefits from a complete rework offering more power while retaining the same housing.
A fibre-optic amplifier from ifm electronic offers long sensing ranges and fast switching.
Designed for IFM’s range of cut-to-length acrylic optical fibres, the new OBF offers a sensing range up to 2,000mm using a through-beam fibre or 100mm in diffuse mode.
The OBF is fast: the output can handle a switching frequency up to 3,000Hz.
As diffuse or through-beam fibres can be used, light or dark switching is selectable.
The device 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 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 an M12 connector.
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