Corporate Headquarters621 Hunt Valley CircleNew Kensington, PA 15068-7074, USAwww.MyBacharach.comhelp@MyBacharach.comPage - 1 -Ireland / Europe114a Georges St. LowerDun Laoghaire, Co. Dublin, Irelandwww.MurcoGasDetection.comask@Murco.ieMGS-550 Duct Mount KitInstallation GuideP/N: 1100-1031August 2016Revision 0CAUTIONAny installation of the Duct Mount Kit requires full understanding, knowledge and strictobservance of the Bacharach User Manual (part number 1100-1000).1 Intended UseThe Duct Mount Kit (part number 6600-8960) is required for mounting the Bacharach MGS-550 to aduct, if concentrations are to be monitored in ducts.Round ducts must have a diameter of at least 4" (100 mm). Flat ducts must have a mounting area ofat least 6.7" x 6.7" (170 x 170 mm). The required head space for calibration is a minimum of 4”(100 mm) for sliding up the instrument.