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These light barriers are composed of a transmitter an a recipient. The transmitter diode emits light flashes in the infra-red range (invisible at/from approximately 900nm). The recipient operates selectively and can therefore activate the output only if the infra-red light reflected by the transmitter with the corresponding impulse frequency is identified accordingly.
Each recipient along with the amplifier form a integral system. Therefore, disturbances frequently noted in the connecting line when the amplifier is attached as a separate unit, are excluded.
If the light barrier is to be used at an ambient temperature of more than +60°C to a maximum of +400°C we recommend our light barrier series IRL...GF or ILX...GF (AX...GF) complete with light guide connection (Version I).
Important:
In ex-zones, using light barriers ILD ("flame-proof"/impact-resitant enclosure) or the AX series ("inherently safe") is a basic requirement.
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