Transcend CPAP User Manual - Direct Home Medical

Page 39Transcend Sleep Apnea Therapy User ManualImmunity testSurgeIEC 61000-4-5Voltage dips, shortinterruptions, andvoltage variations onpower supply inputlinesIEC 61000-4-11Power frequency(50/60 Hz) magneticfieldIEC 61000-4-8Conducted RFIEC 61000-4-6Radiated RFIEC 61000-4-3IEC 60601 testlevel±1 kV differentialmode±2 kV commonmode95% dipin U T ) for 0.5 cycle40% U T (60% dip inU T ) for 5 cycles70% U T (30% dip inU T ) for 25 cycles95% dipin U T for 5 sec)Compliance level±0.5*, 1 kV differentialmode±2 kV common mode95% dip inU T ) for 0.5 cycle40% U T (60% dip in U T )for 5 cycles70% U T (30% dip in U T )for 25 cycles95% dip in U Tfor 5 sec)Electromagneticenvironment—guidanceLine power quality should bethat of a typical commercial orhospital environment.Linepower quality should be thatof a typical commercial orhospital environment. If the userof the Transcend systemrequires continued operationduring power line interruptions,it is recommended that theTranscend system be poweredfrom the battery.Note U T is the A.C. linevoltage beforeapplication of the testlevel.3 A/m 3 A/m Power frequency magnetic fieldsshould be at levels characteristicof a typical commercial orhospital environment.3 Vrms150 kHz to 80 MHz3 V/m80 MHz to 2.5 GHz3 Vrms10 KHz to 100 MHz*10 V/m (compliancelevel adjusted to meetFDA limits)26 MHz to 2.5 GHzNote At 80 MHz and800 MHz, thehigher frequencyrange applies.Recommended separationdistance: d = 1.17 PRecommended separationdistance: d = 0.35 P 80 MHz to800MHzRecommended separationdistance: d = 0.70 P 800MHz to2.5 GHzwhere P is the maximum outputpower rating of the transmitterin watts (W) according to thetransmitter manufacturer and dis the recommended separationdistance in meters (m).Field strengths from fixed RFtransmitters, as determined byan electromagnetic site survey,should be less than thecompliance level in eachfrequency range.Interference may occur in thevicinity of equipment markedwith the following symbol: