SIEMENS flame detector LFS1.21A2 flame amplifier LFS1.11A2

Other commonly used models of SIEMENS flame controller LFS series:

SIEMENS LFS1.11A1

SIEMENS LFS1.11A2

SIEMENS LFS1.21A1

SIEMENS LFS1.21A2

For LFS1.1 (fuel operating mode) with photocell sensor RAR9 and continuous operation permission.

For LFS1.2 (gas operation mode) LFS1.2 consists of continuously operating ionization rods or intermittently operating ultraviolet flame detectors QRA2 / QRA2M /QRA4 / QRA4M / QRA10 / QRA10M.

Dual monitoring/main flame monitoring of the burner or pilot flame and main flame monitoring via 2 flame monitors of the same or different flame detectors

Multi-flame monitoring / In equipment with multiple burners, their flames must be monitored by one or more flame detectors respectively, but their operation and monitoring are only performed centrally by one controller at the same time. LFS1.21A2 flame amplifier LFS1.11A2

In addition, the flame monitor can be installed in the combustion device as a flame indicator for manually operated burner equipment, and its commissioning is manually controlled

Flame signal indicator with multi-color LED signal light

The flame signal is displayed through DC 0~10V output signal (display only)

Parameters can be set via BCI communication interface

Potential-free signaling contact with protective insulation

Low Voltage Monitoring