Baumer CleverLevel LBFH/I Operating Instructions Manual

Operating InstructionsLevel measurementCleverLevel ® LBFH/IPoint level detection – hygienic/industrialTable of contents1. Safety .......................................................... 32. Construction and function ........................... 33. Symbols in warning signs ............................ 44. Transport and storage ................................. 45. Assembly ..................................................... 46. Electrical connection ................................... 77. Electrical connection in explosion hazardareas ........................................................... 88. Configuration ............................................. 109. Troubleshooting ..........................................1210. Cleaning, maintenance and repair..............1211. Disposal .....................................................1212. Accessories ................................................1213. Technical data ............................................1214. Configuration overview ...............................131. SafetyIntended useThe sensor must be used solely for the leveldetection of liquids and solids with a dielectricconstant of at least 1.5.The sensor must only be used for media againstwhich the housing material and sensor tip areresistant.Staff qualificationOnly use staff who are trained for the activitiesdescribed. This applies in particular to assembly,installation, configuration and troubleshooting.Make sure that the staff have read and understoodthese instructions.Technical conditionOnly use sensor in perfect technical condition.Only use Baumer accessories.Baumer will accept no liability for othermanufacturers’ accessories.Risk of burns from hot mediaDuring operation the sensor housing may warmup to over 50 ºC. When working with hot mediaprovide protection against burns.2. Construction and function1 2 34Fig. 1. Constructionf LCμCFig. 2. Function1 Sensor tip2 LED3 Connection with M12 plug4 qTeach detectorAn electrode integrated into the sensor tip formsa capacitor with the environment. The mediumdetermines the capacity value depending onits dielectric constant (DC values). A resonantcircuit occurs together with a coil in the sensorelectronics. Depending on the resonancefrequency measured and the programmable triggerthreshold, the switch signal is activated.www.baumer.com3 / 48