试题详情

煤矿用高低浓度甲烷传感器在0.00~4.00%CH4范围内,甲烷浓度恒定时,显示值或输出信号值(换算为甲烷浓度值)变化量不超过()。在4.00%~100%CH4范围内,甲烷浓度恒定时,传感器最示值或输出信号值(换算为甲烷浓度值)变化量不超过()

AA.0.04%CH4,0.4%CH4

BB.0.1%CH4,0.4%CH4

CC.0.02%CH4,0.4%CH4

DD.0.1%CH4,0.5%CH4