光干涉式甲烷测定器主要技术指标：
型号：                  CJG10                        CJG100
测量范围：          0-10%                          0-100%
基本误差：          ±0.3%                          ±3%
分辨率：              0.5%                            5%
刻度盘量程：      0-1%                            0-10%
刻度盘分辨率：  0.02%                          0.2%
灯泡电压电流：  2.5/0.3                          2.5/0.3
防爆形式：          ExibI                            ExibI
电池形式：          2xR20锌锰电池          2xR20锌锰电池
外形尺寸：          225*135*70mm            225*135*70mm
重量：                    1.8kg                              1.8kg