产品特点：SM-PA系列基本型丙烷传感器采用双光束非分光红外线(NDIR)检测技术，具有抗其他气体干扰、保养维护简便、稳定性好、自带温度补偿、具有 Modbus ASCII协议数字输出等优点。适用于泄漏报警、现场施工防护、简单气体分析气体、在线监测、工业过程分析等多种场合。特征参数：                                                                                                                检测气体： 丙烷(C3H8）                                                                                      检测原理：红外线(NDIR)                                                                                       量程： 0 to 100 % LEL                                                                                            检测精度： ±2% FS（标准型），±1% FS（高精度型）                                 低限报警： 7% LEL（可设置）                                                                             高限报警：   14% LEL（可设置）                                                                           操作温度：-10°C to 50°Cv                                                                                    操作压力：   800 hPa to 1100 hPa                                                                           操作湿度：    0% to 95% RH