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XCS102F - MICRO Hi-Fi SYSTEM SERVICE MANUAL

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MQ307ACO MQ307ASnO2,CO 。 ,, ,,。MQ307A CO。 , , 100 。 (1) ()(2), 。( CH4,CO),CH4CO 。3,4 MQ307A。 Free Datasheet http://www.Datasheet4U.com A. VH(H) VH(L) VC RL RH TH (H) TH (L) DT (L) () () () () () () () 0.90V ± 0.10V 0~0.2 V ≤6V (> 1 ΚΩ ) 4.5Ω ± 0.5 Ω 60sec ± 5 sec 90 sec ± 10sec < 1 sec ≤ 120 mA 40±5mW ≤10 mW AC or DC DC P S < 10 mW VH=0.9V VH=0.2V P S = (V C - V RL ) 2/ R S I (H) I (L) PS Free Datasheet http://www.Datasheet4U.com B. Tao Tas RH (O2) -20 C —50 C o o -20 C— 70 C o o ≤ 95% RH 21%±1%() 18% C. Rs o MQ-307A 20kΩ to 400 kΩ 1.05 2.1 0.75 0.90 o Rs (30 ppmCO) / Rs (100 ppmCO) Rs(300 ppmCO) /Rs(100ppmCO) α (30-100) α (100-300) : : 20 C ± 2 C : 65% ± 5% :48 V C : 3.0 V ± 0.1 V DC V H : 0.9 V ±0. 1 V /0—0.2 V DC R L : 1.