The LR series level sensor operates to the principle of guided wave radar and measures the level using electromagnetic pulses in the nanosecond range. It is particularly suited for continuous level monitoring in food and beverage applications due to food-grade materials and hygienic installation possibilities. The sensor allows detection of almost all media, even extremely adhering or non-conductive ones. Even with foam or high temperatures precise level detection is guaranteed.
The sensor is installed directly in the tank using a mounting or welding adapter (e.g. clamp, pipe fitting, Varivent), which can be obtained as an option. If necessary, the probe can be easily shortened and adapted to the tank by the user.
The unit has two switching outputs which can be programmed as normally open or normally closed. For output of the measured value, one switching output can also be configured as a scalable analog output.
Setting of all parameters as well as programming of the switch points and indication of the current level are carried out via programming buttons and a 4-digit alphanumeric display. The sensor can also be configured via IO-Link, e.g. using a USB interface. The sensor can also be configured via IO-Link, e.g. using a USB interface. The LR Device software is used to visualize, transfer and archive parameter sets.
The gwr operating principle uses electromagnetic pulses in the nanosecond (microwave) range. The sensor head transmits the pulses and the pulses travel down the metal probe (guide). When the wave hits the medium, it is reflected back, collected by the metal probe, and guided to the sensor head. The time difference between the transmitting and receiving pulse (time-of-flight) is directly proportional to the distance measurement.
