SICK has released an analogue output version of the UM 18 ultrasonic sensor. It can be used for continuously detecting and transmitting distance or height changes over scanning distances between 30mm and 250mm. The sensor has a short and robust M18 fine-thread housing and offers one or two switching outputs whose switching threshold can be programmed by teach-in or via a control cable.
The UM 18 offers analogue output options of either 4maA-20mA or 0V-10V dc. While the standard version offers a single switching output, the high-end version has two switching outputs - necessary for min-max regulation during level detection or the regulation of slack - in addition to two function LEDs. Integrated temperature compensation ensures that detection accuracy and reliability are unaffected by any changes in the ambient temperature.
It is suitable for checking liquid levels in harsh environments, measuring filling levels in cartridges and dispensing machines, detecting transparent objects such as foils, or monitoring slack in web products.