Description
Elevator light curtain KM51231708 L135 080/KR Brief Introduction
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Product Name |
Elevator light curtain |
| Model Number | KM51231708
L135 080/KR |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Elevator Light Curtain KM51231708 – Nanjing Zhuye Elevatorparts
The elevator light curtain is a core safety component of the elevator door system, acting as an “invisible protective shield” to prevent pinch injuries during door closing. It detects obstacles in the door area through infrared rays and immediately sends a signal to the controller to stop or reverse the door, ensuring the safety of passengers and goods. The Elevator Light Curtain KM51231708 launched by Nanjing Zhuye Elevatorparts is a high-performance safety protection device tailored for mainstream elevator systems, widely compatible with well-known elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. Adopting advanced infrared sensing technology with dense light beam distribution, this light curtain features high detection accuracy, fast response speed, and strong anti-interference ability, strictly complying with international elevator safety standards (EN 81-20, GB 7588) and becoming a reliable choice for global elevator maintenance teams and manufacturers.
Nanjing Zhuye Elevatorparts adheres to the “quality first, safety-oriented” principle, implementing strict quality control throughout the production process of the KM51231708 elevator light curtain. Each unit undergoes rigorous testing, including detection range verification, response time assessment, durability testing, and anti-interference performance inspection. The light curtain is equipped with high-sensitivity infrared transmitting and receiving tubes, ensuring stable operation even in harsh environments such as strong light, dust, and humidity. The shell adopts a fully sealed metal structure with an IP rating of IP54, effectively preventing dust and water vapor from entering the internal components. The operating temperature range is -10℃ to 60℃, and the signal line uses double-shielded wires to avoid electromagnetic interference from the elevator’s electrical system, ensuring reliable signal transmission. The KM51231708 also has a self-diagnosis function, which can promptly detect faults and send alarm signals to facilitate maintenance.
Usage Guide for Elevator Light Curtain KM51231708
Correct installation, wiring, and debugging of the KM51231708 elevator light curtain are crucial to ensuring the safety of the elevator door system. Nanjing Zhuye Elevatorparts strongly recommends that only certified elevator maintenance technicians perform related operations, as improper installation (such as incorrect alignment) or wiring may lead to light curtain failure, resulting in potential pinch hazards. Before operation, please carefully read the product manual provided by Nanjing Zhuye Elevatorparts and confirm the model matches the elevator door system.
1. Pre-Installation Preparation
First, confirm that the KM51231708 light curtain matches the elevator door system’s parameters (such as door width, installation height, and interface type). Consult Nanjing Zhuye Elevatorparts’ technical team immediately if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and door system power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator entrance. Fix the elevator car at a flat floor position and block the door to prevent accidental closing. Prepare professional tools including a screwdriver, wrench, level ruler, multimeter, and anti-static gloves. Clean the light curtain installation area (on the car door and landing door frames) to remove dust, debris, and oil stains, and check if the installation surface is flat and free of deformation.
2. Installation, Wiring & Debugging
Install the transmitting and receiving ends of the KM51231708 light curtain on the car door and landing door frames respectively, ensuring they are aligned accurately (the deviation should be less than 5mm) and the light beam is parallel to the door panel. Fix them firmly with screws according to Nanjing Zhuye’s torque specifications to avoid displacement due to door vibration. Perform wiring strictly according to the wiring diagram: Connect the power cord and signal lines to the corresponding terminals of the elevator door controller. Ensure the shielding layer of the signal line is reliably grounded at the controller end to avoid electromagnetic interference. Note that the distance between the signal line and the power line should be more than 30mm. After wiring, restore the terminal cover before powering on. For debugging: First, perform no-load power-on inspection to confirm the light curtain’s indicator light is normal (green light for normal operation, red light for fault). Use a thin object (such as a wooden stick) to block the light beam in different positions of the door area— the elevator door should stop closing or reverse immediately. Test the light curtain’s self-diagnosis function by disconnecting one of the signal lines; the controller should report a fault alarm promptly. Finally, run the elevator through multiple door opening and closing cycles to ensure the light curtain and door system work synchronously and stably.
3. Daily Use & Maintenance
According to the “Elevator Maintenance Rules” (TSG T5002-2017) and Nanjing Zhuye’s recommendations, the KM51231708 light curtain should be inspected every 15 days and undergo professional comprehensive testing annually. For daily maintenance: Power off before inspection, clean the surface of the light curtain’s transmitting and receiving ends with a dry cloth or lens cleaning paper to remove dust, fingerprints, and oil stains (avoid using water or chemical cleaners). Check the fixing screws quarterly and re-tighten them if loose to prevent misalignment. Inspect the signal line for wear, aging, or loose connections—replace damaged lines immediately and ensure the shielding layer is intact. Regularly test the light curtain’s function by blocking the light beam; if the door fails to stop or reverse, or the controller reports frequent light curtain faults, prioritize checking for issues such as misalignment, dirty lenses, or signal interference. If the light curtain fails to work normally, contact Nanjing Zhuye’s after-sales team for troubleshooting in a timely manner.
Replacement Cycle of Elevator Light Curtain KM51231708
The replacement cycle of the KM51231708 elevator light curtain is determined by operating frequency, working environment, and component aging. Under normal conditions (elevator daily operation 12-24 hours, door opening and closing ≥500 times/day, dry and clean environment), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 4-6 years. This cycle is based on long-term field operation data and component reliability tests, fully considering the wear of infrared components, attenuation of signal transmission performance, and aging of the shell and wires.
For elevators in high-traffic areas (e.g., large shopping malls, airports with door opening and closing ≥1000 times/day) or harsh environments (high humidity, heavy dust, strong light interference, or frequent vibration), the replacement cycle should be shortened to 2-4 years. High-frequency operation accelerates the aging of infrared tubes and mechanical components, while harsh environments easily cause contamination of lenses and corrosion of wiring. For low-usage elevators (e.g., villa elevators, small office buildings with daily operation time <8 hours) in stable environments, the cycle can be extended to 6-8 years, but annual professional testing by Nanjing Zhuye’s technicians is required to confirm that the light curtain’s detection accuracy, response speed, and anti-interference ability meet safety standards.
Replace the KM51231708 light curtain immediately if any of the following issues occur, regardless of its service life: Frequent false alarms or failure to detect obstacles, leading to potential pinch hazards; severe damage to the shell (such as cracks or deformation) that affects sealing performance; internal components aging or damage resulting in unstable signal output; the light curtain fails to pass the annual professional safety test; frequent faults that cannot be resolved by maintenance (e.g., continuous self-diagnosis alarms, unresponsive to obstacle blocking). Timely replacement is critical to avoid elevator operation safety accidents and protect the lives and property of passengers.
The Elevator Light Curtain KM51231708 from Nanjing Zhuye Elevatorparts integrates high reliability, high precision, and strong compatibility, providing a critical safety guarantee for the elevator door system. By following the correct usage, maintenance, and replacement guidelines, you can effectively reduce light curtain-related faults and improve the overall operation safety of the elevator. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic KM51231708 light curtains, as well as professional services including model matching, on-site installation guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the safe and stable operation of your elevator.
