MQ6 Datasheet | HANWEI

Features - High sensitivity to LPG, iso-butane, propane - Small sensitivity to alcohol, smoke. - Fast response . - Stable and long life - Simple drive circuit APPLICATION They are used in gas leakage detecting equipments in family and industry, are suitable for detecting of LPG, iso-butane, propane, LNG, avoid the noise of alcohol and cooking fumes and cigarette smoke. SPECIFICATIONS A. Standard work condition Symbol Vc VH PL RH PH Symbol Tao Tas RH O2 Parameter name Circuit voltage Heating voltage Load resistance Heater resistance Heating consumption Parameter name Using Tem Storage Tem Related humidity Oxygen concentration Technical condition 5V±0.1 5V±0.1 20KΩ 33Ω±5% less than 750mw Technical condition -10℃-50℃ -20℃-70℃ less than 95%Rh 21%(standard condition)Oxygen concentration can affect sensitivity Technical parameter 10KΩ- 60KΩ (1000ppm LPG ) ≤0.6 Vc:5V±0.1 Vh: 5V±0.1 Remarks AC OR DC ACOR DC Room Tem B. Environment condition Remarks minimum value is over 2% Remarks Detecting concentration scope： 200-10000ppm LPG , iso-butane, C. Sensitivity characteristic Symbol Rs Parameter name Sensing Resistance α (1000ppm/ 4000ppm LPG) Standard detecting condition Preheat time Concentration slope rate Temp: 20℃±2℃ Humidity: 65%±5% propane, LNG Over 24 hour D. Strucyure and configuration, basic measuring circuit 1 2 3 4 5 6 7 8 9 Parts Gas sensing layer Electrode Electrode line Heater coil Tubular ceramic Anti-explosion network Clamp ring Resin base Tube Pin Materials Sn O2 Au Pt Ni-Cr alloy Al2O3 Stainless steel gauze (SUS316 100-mesh) Copper plating Ni Bakelite Copper plating Ni Fig.2 Fig. 1 Configuration A Configuration B TEL:86-371-67169080 A向 FAX: 86-371-67169090 A向 E-mail:sales@hwsensor. HANWEI SENSORS MQ-6 .hwsensor. Structure and configuration of MQ-6 gas sensor is shown as Fig. 1 (Configuration A or B), sensor posed by micro AL2O3 ceramic tube, Tin Dioxide (Sn O2) sensitive layer, measuring electrode and heater are fixed into a crust made by...