INM MTL 130-0126 Rev 1311 INTRODUCTIONThis manual covers the K1650 & K6050 models of gas analysers designed specifically toanalyse the gas mixtures encountered when using hydrogen to purge alternator generatorsand similar equipment. Carbon Dioxide is used to displace the air in the system, then Hydrogendisplaces the Carbon Dioxide. This ensures that Hydrogen does not mix with Oxygen and forma potentially explosive mixture. Once filled with hydrogen the plant can be operated and theanalyser used to measure the hydrogen purity. The analysers are equipped with three rangesso that each stage of the process can be monitored.The K1650 comprises an electronic module and zener barrier mounted onto a sub-panel suitablefor convenient combined mounting.The K6050 is a portable free-standing instrument with an integral sensor and packaged in arugged waterproof carrying case.Common to both instruments is an advanced microprocessor based core, which provides afully featured, yet easy to use gas analyser. Gas analysis takes place using thermal conductivitymeasurements made using a highly-stable, non-depleting katharometer sensor.The K1650 is supplied with zener barriers to provide an intrinsically safe interface between thesensor unit and the electronics allowing the sensor to be located in a hazardous area.1.1 Manual symbolsThe following methods are used in this manual to alert the user to important information:-WARNINGWarnings are provided to ensure operator safety and MUST be followed.CAUTIONA Caution is provided to prevent damage to the instrument.NOTEThese are used to give general information to ensure correct operation1.2 InformationWaste Electrical and Electronic Equipment directive (WEEE) 2002/96/EC(RoHS) directive 2002/95/ECWARNINGThis equipment must only be used in accordance with the manufacturer’sspecification, instructions for installation, use and maintenance to ensurethat the protection of the operator is not impaired. It is the responsibilityof the installer to ensure the safety and EMC compliance of any particularinstallation.