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SL-90-2/220 flame control switch, instruction manual? and got a better answer
Response from Антон Владимирович[+++++]
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INTENTION: Optical flame detector-relay SL-90-2S 220 24 is equipped with optical fiber and intended for indication of presence or absence of flame and signal output for automatic systems of industrial power equipment which external surfaces can be heated up to 150 °С. Application of the sensor is possible for all types of burners and fuels and is limited only by the possibility of installing the light guide lens in the line-of-sight flame. The temperature in the area where the lens is installed should not exceed 150 °С. Sensor SL-90-2S consists of a device part and a light guide. Lens of the optical fiber does not contain electronic components, which allows placing it in places with high temperature up to 150 ° C. The signal from the lens to the instrumental part is transmitted through the light guide
INTENTION: Optical flame detector-relay SL-90-2S 220 24 is equipped with optical fiber and intended for indication of presence or absence of flame and signal output for automatic systems of industrial power equipment which external surfaces can be heated up to 150 °С. Application of the sensor is possible for all types of burners and fuels and is limited only by the possibility of installing the light guide lens in the line-of-sight flame. The temperature in the area where the lens is installed should not exceed 150 °С. Sensor SL-90-2S consists of a device part and a light guide. Lens of the optical fiber does not contain electronic components, which allows placing it in places with high temperature up to 150 ° C. The signal from the lens to the instrumental part is transmitted through the light guide