Explosion proof bidirectional pull rope switch BKLT2-11 Explosion proof bidirectional pull rope switch BKLT2-11 Explosion proof bidirectional pull rope switch BKLT2-11 Explosion proof bidirectional pull rope switch BKLT2-II Installation instructions: 1. The pull rope switch is installed in pairs on the left and right sides of the belt conveyor, with a diameter of 12mm drilled on the iron frame next to the belt conveyor, using M10× 40mm bolt fastening pull rope switch. 2. Install one drawstring switch every 40 meters, and its position should be lower than the belt and convenient for on-site workers to use. 3. The pull rope is tied to the first arm, and it is recommended to use plastic coated steel wire rope with a diameter of 3-5mm. The steel wire rope is fixed with a rope clamp, and a support ring is installed every 3 meters to prevent excessive sag of the steel wire rope and ensure reliable rope pulling action. Under the premise of ensuring normal operation of the switch, try to tighten the rope as much as possible to reduce the sag deflection of the steel wire rope. 4. For the climbing section of the belt conveyor, the distance between the pull rope switches and the length of the pull rope should be minimized as much as possible. 5. Wiring: The rope switch is equipped with a 1.2-meter-long four core rubber sleeve cable when leaving the factory. The core wire is equipped with wire numbers 1, 2, 3, and 4, where 1 and 2 are normally open contacts for alarm signals and 3 and 4 are normally closed contacts for shutdown signals. Accessories: plastic coated steel wire rope, rope clamp and steel wire rope support ring, installation bracket, etc. are all sold. Explosion proof bidirectional pull rope switch BKLT2-II. Operating environment conditions: a. Environmental temperature: -40 ℃~60 ℃ b. Relative humidity not exceeding 85% c. Sea level not exceeding 2000md. Service life: 100000 switch actions. e. Insulation voltage: AC1000 test for 1 minute& nbsp; The working principle of the explosion-proof bidirectional pull rope switch BKLT2-II: When an emergency occurs on the site of the tape conveyor, the steel wire rope tied to the swing arm can be pulled, causing the swing arm to rotate and the internal cam of the conveyor to sense the micro switch, issuing a stop signal. 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