2 For your safety2.1 Authorised personnelAll operations described in this operating instructions manualmust be carried out only by trained specialist personnelauthorised by the plant operator.During work on and with the device the required personalprotection equipment must always be worn.2.2 Appropriate useVEGAPULS 67 is a sensor for continuous level measurement.You can find detailed information on the application range inchapter "Product description".Operational reliability is ensured only if the instrument isproperly used according to the specifications in the operatinginstructions manual as well as possible supplementaryinstructions.For safety and warranty reasons, any invasive work on thedevice beyond that described in the operating instructionsmanual may be carried out only by personnel authorised by themanufacturer. Arbitrary conversions or modifications areexplicitly forbidden.2.3 Warning about misuseInappropriate or incorrect use of the instrument can give rise toapplication-specific hazards, e.g. vessel overfill or damage tosystem components through incorrect mounting or adjustment.2.4 General safety instructionsThis is a high-tech instrument requiring the strict observance ofstandard regulations and guidelines. The user must take noteof the safety instructions in this operating instructions manual,the country-specific installation standards as well as allprevailing safety regulations and accident prevention rules.The emitting frequency of VEGAPULS 67 is in the K bandrange. The low transmitting power lies far below the interna-tionally permitted limit values. When the instrument usedcorrectly, it presents no danger to human health. It may beoperated without restriction outside of closed metallic vessels.VEGAPULS 67 • 4 … 20 mA/HART 5For your safety32938-EN-080610