SIEMENS程控器LOA24.171B2EM
SIEMENS程控器LOA24.171B2CB
SIEMENS程控器LOA44.252A27
SIEMENS程控器LOA24.171B27
SIEMENS程控器LOA21.173B27（百通燃烧机） LOA…燃油燃烧控制器机械式燃烧控制器监测，起动，控制单段或双段强制通风间歇运行的燃油燃烧器（小于30Kg/h) 黄色火焰采用QRB…火焰探测器蓝色火焰采用QRC…火焰探测器
| 型号 | 工作电压VAC | t1 | t3 | TASmax | t3n | t3n | t4 | |
| 标准 型号 | LOA24.171B27 | 220 | 13s | 13s | 10s | 15s | / | 15s |
| LOA24.171B17 | 110 | 13s | 13s | 10s | 15s | / | 15s | |
| LOA24.173A27 | 220 | 13s | 13s | 10s | 20s | 2s | 20s | |
| LOA24.174A27 | 220 | 13s | 13s | 10s | 35s | 2s | 35s | |
| 带远程复位 | LOA26.171B27 | 220 | 13s | 13s | 10s | 15s | / | 15s |
| LOA36.171A27 | 220 | 13s | 13s | 10s | 15s | / | 15s | |
| 点活火花检测 | LOA24.571C27 | 220 | 6s | 6s | 10s | 20s | / | 20s |
| 焚化系统 | LOA25.173C27 | 220 | 13s | 13s | 10s | / | 2s | 15s |
| LOA25.173C17 | 110 | 13s | 13s | 10s | / | 2s | 15s | |
| LOA28.173A27 | 220 | 13s | 13s | 10s | / | 2s | 15s | |
| tw 等待时间 t1 预吹扫时间 t3 预点火时间 t3n 后点火时间 t4 从火焰建立到主阀打开的时间间隔 | ||||||||