類型 軸流風(fēng)扇 電機功率 0（w） 電壓 220-240（V） 電流 0（A） 適用范圍 110-380 風(fēng)量 300CFM 風(fēng)葉直徑 200mm 轉(zhuǎn)速 3000 1.SCOPE（范圍）This specification to model NO:（產(chǎn)品機型）DFH1238B242.STANDARD ENVIRONMENTAL CONDITIONS（通用環(huán)境）Temperature 25℃and relative humidity 60％shall be standard if no doubtArises in the judgement,however,it is permitted that rests are conducted inThe environment of temperature 5-35℃,relative humidity 45-85％（推薦溫度25℃，相對濕度60％下使用，但在溫度5-35℃相對濕度45-85％的條件下，產(chǎn)品能正常工作）3.STRUCTURE AND FORM（產(chǎn)品結(jié)構(gòu)）3-1Structure（結(jié)構(gòu)）axial motor fan（軸流風(fēng)機）3-2Housing（框架）BLACK PBT3-3Blade（扇葉）BLACK PBT3-4Bearing（軸承結(jié)構(gòu)）BALL Bearing3-5Lead （線材）UL1007/24AWG/L=260MM4．RATED AND OPERATING CONDITLONS（額定條件）4-1Rated voltage（額定電壓）(VDC)24.04-2Rated current（額定電流）(A)0.24A±10％4-3Startup voltage（啟動電壓）(VDC)12.04-4Rated input power（輸入功率）(W)5.764-5Operating voltage（電壓范圍）(VDC)21.6-26.44-6Operating temperarure（工作溫度）(℃)-10℃--+70℃4-7Storage temperature（收藏溫度）(℃)-40℃--+80℃4-8Speed（轉(zhuǎn)速）(RPM)2800±10％5.AIR FLOW-AIR PRESSURE CHARACTERISTIC（風(fēng)量-風(fēng)壓特性）Applicable conditions:Shall be applied in the state when the standard, environmental conditions and voltage are fixed.（注意事項：不變化環(huán)境及工作電壓）ITEM（測試項目）CONDITIONS（測試條件）STANDARD（測試標準）5-1Max.air flowAir pressure=0 109.49CFM5-2Max.air pressureAir flow=0 6.86mmH2O5-3Air flow.air Pressurecharacteristics AS performanceCurves 6.PERFORMANCE(性能指標)Applicable conditions:shall be applied under the standard environmental conditions and rated conditions（測試條件：標準環(huán)境條件及額定條件下）Item（測試項目）Conditions（測試條件）Standard（測試標準）6-1Noise噪音Shall be measure in aroundisolated room ofBackground noise 20DB orLess,in a distance of lm from intake direction 42.07dBa 6-2 Insulation Resistance絕緣阻抗When test voltage of DC250v is impressed betweenterrninal(+)and horsing Min 10 megohm6-3Dielectrice Withstand Voltage絕緣強度When voltage of AC 500v is Impressed between terminal(+)and housing Shall be free of Abnormality 7.SPECIAL TEST（專用試驗） 7-1VibrationResistance振動試驗 5-3hz,0.04