LFE50系列燃烧火焰监测器配合SIEMENS西门子公司出产的火焰探测器QRA50M或者QRA51M使用，转换它们的模拟量电流信号为开关量信号。

此型号可24小时连续运行。

The LFE50... together with the QRA50M / QRA51M form a self-checking UV flame supervision system (DETACTOGYR?) designed for use with continuously operating oil or gas burners or burners operating without interruption for more than 24 hours.

• The DETACTOGYR flame supervision system consists of the UV flame safeguard

• LFE50... and the flame detectors QRA50... / QRA51.... It is designed for UV supervisionand can therefore be used in connection with oil burners, gas burners and gas / oilburners. Automatic startup and control of these burners must be ensured with a controlunit LEC1... (refer to Data Sheet 7761). The system is also suited for the supervision of

• manually operated burners.

• Prerequisite for the use of the DETACTOGYR system is sufficiently high UV radiation

• at the flame detector’s mounting location.

• For combustion plant where heat generation must also be ensured in the event the

• flame supervision system fails, active redundancy circuitry can be accomplished by

  • using 2 DETACTOGYR systems.