ifm electronic has introduced a contrast sensor that is suitable for detecting print mark and particularly flat objects. This addition to the O5 size photocell family is able to detect even very small differences in contrast, and utilises its RGB light source and microprocessor to cleverly select the optimum transmitter colour to ensure maximum energy difference in the reflected light. Meanwhile, the simple pushbutton set-up saves time and additional costs during commissioning.
The very high switching frequency of 10,000 Hz means that a wide range of applications, even with a very short mark-to-space ratio, can be addressed. Another intelligent feature of the O5 contrast sensor is the automatic recognition of the circuit it’s connected to, so that it knows to switch pnp or npn. The user does not need to pre-select a correct version. An industry standard M12 connector is provided for the electrical connection, and a wide range of accessories guarantees fast and flexible fixing of the sensors.