RAE MiniRAE 3000 User's Guide - Geotech

MiniRAE 3000 User’s Guideinternal charging circuit is designed to prevent damage to alkalinebatteries and the charging circuit when alkaline batteries are installedinside the instrument. If you try to charge an alkaline batteries installedin the instrument, the instrument’s display will say, “Alkaline Battery,”indicating that it will not charge the alkaline batteries.Note: When replacing alkaline batteries, dispose of old ones properly.WARNING!To reduce the risk of ignition of hazardous atmospheres, recharge thebattery only in areas known to be non-hazardous. Remove and replacethe battery only in areas known to be non-hazardous.External FilterThe external filter is made of PTFE (Teflon ® ) membrane with a 0.45micron pore size to prevent dust or other particles from being suckedinto the sensor manifold, which would cause extensive damage to theinstrument. It prolongs the operating life of the sensor. To install theexternal filter, simply connect it to the instrument’s inlet tube.33