The compact sensor can administrate up to 5 reference colours or colour ranges internally. These can either be taught-in or, particularly easily, scanned-in. Separate tolerance values for colour and intensity can be defined for each taught-in reference colour.
In practice, this function proves helpful when, for example, labels with fluctuating print quality must be reliably detected. The tolerances are automatically determined when the colours are scanned in. As a result of its special patented optical system – the optical "funnel" – the FT 50 C also achieves an above-average depth of field.
It can thus easily detect even inexactly transported, moving or vibrating target objects, e.g. workpieces on a conveyor belt. Rapidly moving objects are also reliably detected thanks to the high switching frequency of up to 500 Hz.
The range of interfaces on the FT 50 C is also particularly varied: depending on the variant, it has up to three switching outputs, a serial RS485 interface or an IO-Link interface. The serial interface variant is not internally restricted to a maximum of five colours: as many reference colours as desired can be taught-in and transferred to the machine controller, where they can be stored – in the form of colour vectors (target values and tolerances) – for later retrieval.
This range of functions, together with the high detection reliability and very user-friendly operation, is unique in this class of sensors!
The entire range of sensor functions can also be controlled from a PC, thanks to the serial interface and PC software.