一.仪器特点：

  大屏幕液晶显示，全中文指导菜单，可双怠速。多组份测量，每半小时自动提示调零，引进国外技术，进口机芯，自动计算空燃比λ，内置打印机，RS-232接口可与计算机联网，可测量油温、转速，可以测量以液化石油气、压缩天然气为燃料的车辆排气，是3S、4S站、环保、科研机构的首选产品。

二.主要技术性能：  

1、测量范围：                                CO:  0-10.0  10-2(﹪)
                                                          CO2:  0-20.0    10-2(﹪)  
                                                          HC:  0-10000    10-6(ppm)
                                                          NO:  0-5000    10-6(ppm)
                                                          O2:  0-25.0    10-2(﹪)
                                                          油温：18-150℃
                                                          转速：100-20000rpm
2、重复性误差：  ≤±2﹪
3、零点漂移：                              CO:  ±0.06    10-2(﹪)/1h
                                                        CO2:  ±0.5    10-2(﹪)/1h
                                                        HC:  ±30    10-6(ppm)/1h
                                                        O2:  ±0.5    10-2(﹪)/1h
                                                        NO:±30    10-6(ppm)/1h
4、量距漂移：  不超过示值误差允许值（1小时）
5、示值误差：                              CO:  ±10﹪    (相对误差，0-10﹪)
                                                        CO2:  ±5﹪    (相对误差，0-16﹪)
                                                                  ±10﹪    (相对误差，16.01-20﹪)
                                                        HC:    ±3﹪    (相对误差，0-2000ppm)
                                                                  ±5﹪    (相对误差，2001-5000ppm)
                                                                              ±10﹪    (相对误差，5001-10000ppm)
                                                        NO:    ±5﹪    (相对误差，0-4000ppm)
                                                                  ±10﹪    (相对误差，4001-5000ppm)
                                                        O2:    ±5﹪    (相对误差，0-25﹪)
                                                        油温：  ±2℃    (绝对误差)
                                                        转速：  ±1.0﹪    (相对误差)
6、环境条件：                              温度：0℃-40℃
                                                        湿度：≤80﹪
                                                        大气压力：60-105kPa
                                                        电源：AC    220V±10﹪；  50Hz
7、预热时间：10min
8、取样方式：
    尾气：直接取样，取样管长度5M，取样探头长度900mm。  

    油温：探测头插入发动机润滑油标尺孔中，插入长度与油标尺长度相同，用橡胶塞堵死，以防机  油喷出，导线长度：5M；  

    转速：非接触型测量方法，只要靠近汽油发动机的高压软线距离不大于20厘米即可测定汽油发动机的转速。