Infrared/Photocell Introduction

Infrared/Photocell Introduction

① If the transmission and reception are not synchronized, two lights will be illuminated on the receiving board, and the internal relay will not work. The normally open contact will be disconnected and the normally closed contact will be closed (11v).

② If they are synchronized, only the light on the right (next to the screw hole) will be illuminated, while the other light will be off (9.5v). The internal relay will work, and the normally open contact will be closed and the normally closed contact will be open.

Tips for using infrared products: The infrared protection works only when it blocks the light along this line. If the infrared light passes through the hollow part of the table and the table is facing upwards, it still won’t be blocked and won’t stop. This situation is relatively rare, but this detail should still be noted. However, usually the obstacles are solid (with fewer hollow parts). From the floor upwards, the infrared line will be blocked. Generally, if it is applied to glass doors, a word or cartoon can be pasted on the glass door. When the glass door opens outward, the word or cartoon will exactly block the infrared light, and at this time, the door cannot be opened or closed normally (achieving the blocking protection effect).

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