34LP Gas Leak AlarmsGas MetersRegulatorsHoses / Gas CocksTechnical DocumentsBulks / VaporizersControllers /Shutoff ValvesAlarmsNo-voltage Output Gas Leak AlarmModelYF-434GYF-434G (S)YF-434G (SA)Detection PrincipleContact Combustion Type Gas SensorGas Density for DetectionLess than 1/4 of lower limit for gas explosionAlarm MethodTime-Lag Alarm, Automatic ResetAlarm Lamp (LED: Red)Buzzer + Voice Alarm (more than 70 dB/m)Operating Temperature-10ºC to +40ºCPower SupplyAC 100 V 50/60 HzPower ConsumptionDuring monitoring: Approx. 0.8 W, During alarm: Approx. 0.8 WExternal OutputConnection MethodFront Panel Terminal BlockOutput SignalOpen CollectorStandard Time-LagApprox. 34 secondsBuilt-in CircuitMuting Circuit Enabled at Power-on (Approx. 5 seconds)Alarm Time-Lag Circuit (Approx. 15 seconds)Inspection mode (10 minutes)*FunctionLED (white) Brightness Adjustment (During Monitoring)Alarm History Display, Replacement Notication, Alarm Sound Stop Failure NoticationPower SupplySwitchingG TerminalFront Panel Terminal BlockPower Plug CableLength 2.5 m(Spare Socket Included)Length 0.35 mLength 0.35 m(Spare Socket Included)External DimensionsH117×W70×D28 (mm)WeightApprox. 200 gApprox. 130 gApprox. 140 gPackaging Unit20 pcs*Time-lag is made short to 15 seconds while in inspection mode.ModelYF-437FYF-437F (S)YF-437F (SA)YF-437FPYF-437FP (SA)Detection PrincipleContact Combustion Type Gas SensorGas Density for DetectionLess than 1/4 of lower limit for gas explosionAlarm MethodTime-Lag Alarm, Automatic ResetAlarm Lamp (LED: Red)Voice Alarm (Speaker: more than 70 dB/m)Operating Temperature-10ºC to +40ºCPower SupplyAC 100 V 50/60 HzPower ConsumptionDuring monitoring: Approx. 0.9 W, During alarm: Approx. 1.0 WExternal OutputConnection MethodScrewless TerminalOutput SignalOpen CollectorStandard Time-LagApprox. 34 secondsBuilt-in CircuitMuting circuit enabled at power-on (Approx. 5 seconds)*1Alarm Time-Lag Circuit (Approx. 15 seconds)Inspection Mode (10 minutes)FunctionReplacement Notication, Alarm Sound StopFailure NoticationPower SupplySwitchingG TerminalFront Panel Terminal BlockPower Plug CableLength 2.5 m(Spare Socket included)Length 0.35 mLength 0.35 m(Spare Socket included)External DimensionsH117×W70×D26 (mm)WeightApprox. 205 gApprox. 135 gApprox. 145 gPackaging Unit20 pcs*1 YF-437FP and 437FP (SA) are (approx. 15 seconds)*YF-437FP and 437FP (SA) are equipped with power plug disconnect features.● Eco Mark ProductModelYF-431ADetection PrincipleContact Combustion Type Gas SensorGas Density for DetectionLess than 1/4 of lower limit for gas explosionAlarm MethodImmediate Alarm Automatic ResetAlarm Lamp (LED: Red)Buzzer Alarm (Electric Buzzer more than 70 dB/m)Operating Temperature-10ºC to +40ºCPower SupplyAC 100 V 50/60 Hz bothPower ConsumptionDuring monitoring: Approx. 0.8 W, During alarm: Approx.0.9 WBuilt-in CircuitMuting Circuit Enabled at Power-on (Approx. 5 seconds)Inspection mode (1 minute)FunctionReplacement NoticationFailure NoticationExternal OutputConnection MethodBack Panel PlugOutput SignalOpen CollectorStandard Time-LagApprox. 34 secondsExternal DimensionsH68×W86×D37 (mm)WeightApprox. 170 gOptionYA-300 (Embedded Socket)YA-301 (Switch Box)Packaging Unit20 pcsComes equipped with night light function, and a buzzer and voice alarmIn-Wall Mount Type AlarmEasy to understand alarm using the voice function● Specications● Specications● Specications No-voltage Output Gas Leak AlarmYF-434G(Buzzer + Audio Type)No-voltage Output Gas Leak AlarmYF-431A(Built-in Type)No-voltage Output Gas Leak AlarmYF-437F (Voice Type)
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