Description
Elevator leveling sensor XAA21751X1/X3 Brief Introduction
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Product Name |
Elevator leveling sensor |
| Model Number | XAA21751X1
XAA21751X3 |
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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 Leveling Sensor XAA21751X1/X3 – Nanjing Zhuye Elevatorparts
The elevator car top emergency power supply is a critical safety component that ensures the elevator’s emergency systems (such as lighting, communication, and door opening) operate normally when the main power supply fails. The Elevator Car Top Emergency Power Supply DJW12-4.5/7.0 provided byNanjing Zhuye Elevatorparts is a high-reliability power supply device tailored for mainstream elevator systems. It supports two capacity specifications (4.5Ah and 7.0Ah) to meet the needs of different elevator models, widely compatible with brands such as Schindler, OTIS, and KONE. Crafted with high-performance lithium-ion batteries, intelligent charging management modules, and flame-retardant casings, this emergency power supply meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator leveling system is a key component that ensures the elevator car aligns accurately with the floor, providing safe and comfortable access for passengers. The elevator leveling sensor serves as the “eye” of this system, detecting the car’s position in real time. The Elevator Leveling Sensor TNC-121 provided by Nanjing Zhuye Elevatorparts is a high-precision position-sensing component tailored for mainstream elevator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This sensor adopts advanced photoelectric sensing technology, featuring high detection accuracy, fast response speed, and strong anti-interference ability, ensuring the elevator stops stably and accurately at each floor. Crafted with high-quality optical components, sealed metal shells, and precision electronic circuits, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator lock is a core safety component that ensures the elevator car door and landing door remain locked during operation, preventing accidental opening and ensuring passenger safety. The Elevator Lock CV50 180 JK406-001 provided by Nanjing Zhuye Elevatorparts is a high-reliability safety lock tailored for mainstream elevator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This elevator lock integrates precise mechanical structure and stable electrical control, achieving reliable locking when the elevator is running and smooth unlocking when it reaches the floor. Crafted with high-strength alloy steel, flame-retardant plastic, and precision electronic components, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator’s electrical control system is prone to arc generation during switch-on and switch-off of contacts, which may cause damage to electrical components or even fire hazards. The elevator arc extinguisher serves as a “safety barrier” to suppress and eliminate arcs. The Elevator Arc Extinguisher HD1.211 provided by Nanjing Zhuye Elevatorparts is a high-performance arc suppression component tailored for elevator electrical systems. It is widely compatible with mainstream elevator brands such as Schindler, OTIS, and KONE, suitable for arc suppression of elevator contactors, relays, and other electrical contacts. Crafted with high-quality arc-extinguishing materials, flame-retardant shells, and precision structural design, this arc extinguisher meets international electrical safety standards (IEC 60947, GB/T 14048) and has become a trusted choice for global elevator maintenance teams and manufacturers.
The elevator door operator is the “power core” of elevator door opening and closing, and the door operator belt serves as a critical transmission component that connects the motor and door pulley system. The Elevator Door Operator Belt L075 provided by Nanjing Zhuye Elevatorparts is a high-performance transmission belt tailored for mainstream elevator door operator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, playing a vital role in ensuring smooth, quiet, and stable operation of elevator doors. Crafted with high-strength polyurethane (PU) material and embedded with high-tensile polyester cords, this belt features excellent wear resistance, tensile strength, and flexibility, meeting international elevator safety standards (EN 81-20, GB 7588) and becoming a trusted choice for global elevator maintenance teams and manufacturers.
The elevator leveling sensor is a core component that ensures the elevator car accurately aligns with the floor landing, directly affecting passenger safety and riding comfort. The Elevator Leveling Sensor XAA21751X1/X3 launched by Nanjing Zhuye Elevatorparts is a high-precision detection device tailored for mainstream elevator systems, with excellent compatibility with renowned brands such as OTIS, Schindler, and Hitachi . It adopts advanced photoelectric sensing technology to realize real-time and accurate positioning of the elevator car, supporting stable communication with the elevator control system to avoid leveling errors. Crafted with high-quality anti-interference components, waterproof and dustproof housing, and precision-calibrated sensing probes, this sensor meets international elevator safety standards (EN 81-20, IEC 60947) and has become a trusted choice for global elevator maintenance teams and manufacturers.
Nanjing Zhuye Elevatorparts has always adhered to the concept of “quality first, safety-oriented,” implementing strict quality control throughout the production process of the XAA21751X1/X3 elevator leveling sensor. Each unit undergoes rigorous testing, including sensing accuracy calibration, anti-interference performance verification, waterproof and dustproof testing, and temperature resistance assessment. The sensor’s photoelectric probe has a detection accuracy of ±1mm, ensuring the elevator car stops accurately at the floor level. It reaches IP65 waterproof and dustproof rating, capable of adapting to the harsh operating environment of elevator shafts. The integrated shielding design effectively resists electromagnetic interference from the elevator control system, while the wide operating temperature range (-20℃ to 60℃) ensures stable performance in extreme environments. Its compact structure also facilitates installation and replacement in limited shaft spaces.
Usage Guide for Elevator Leveling Sensor XAA21751X1/X3
Correct installation, debugging, and calibration of the XAA21751X1/X3 elevator leveling sensor are crucial to ensuring accurate elevator leveling. Nanjing Zhuye Elevatorparts recommends that only certified elevator maintenance technicians perform installation and maintenance to avoid safety hazards caused by improper operation.
1. Pre-Installation Preparation
First, confirm that the elevator’s MAC car lighting controller model matches the POWCV24181MH power supply (check parameters such as input voltage, output voltage, output current, and installation dimensions). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and the secondary power supply for the car lighting system, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator landing doors and machine room entrance. Locate the power supply installation position (usually on the car top or in the car control cabinet) and clean the area to remove dust, debris, and oil stains. Finally, prepare professional tools such as a screwdriver, wire stripper, multimeter, and insulation tester, and check that the new POWCV24181MH power supply from Nanjing Zhuye Elevatorparts is intact (no damage to the shell, no loose pins).
First, confirm that the elevator model matches the XAA21751X1/X3 sensor (check parameters such as installation dimensions, signal interface, and rated voltage). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator entrance. Use a hoist to fix the elevator car at a safe position to expose the sensor installation area on the car top. Finally, prepare professional tools such as a screwdriver, wrench, level, multimeter, and calibration ruler; clean the sensor installation position and the corresponding induction plate on the shaft to remove dust, debris, and oil stains .
DebuggDebugg2. Operation & Usage
Locate the original sensor position on the elevator car top and take photos to record its installation height and wiring direction for later reference. Remove the fixing screws of the old sensor and disconnect the wires. Take the new XAA21751X1/X3 sensor from Nanjing Zhuye Elevatorparts, install it on the bracket, and fix it firmly with screws. Use a level to ensure the sensor is horizontally installed—no tilt is allowed . Connect the wires to the corresponding terminals of the elevator control system strictly according to the wiring diagram provided by Nanjing Zhuye, ensuring firm connections and correct polarity. Adjust the distance between the sensor and the induction plate (the standard distance is 5-10mm) to ensure stable signal transmission. After installation, power on the system and use the calibration ruler to debug the sensor’s sensing range, ensuring it can accurately detect the floor position.
3. Daily Maintenance & Post-Installation Testing
Restore the elevator’s normal operation mode and test the leveling accuracy at each floor: the gap between the car floor and the landing should be less than 3mm. Operate the elevator to run up and down multiple times to check if the sensor transmits signals stably without delay or loss. For daily maintenance, inspect the sensor during monthly shaft patrols: Check if the fixing screws are loose, the sensor surface is clean (wipe with a dry cloth to remove dust), and the wiring terminals are free of oxidation. Every 3 months, recheck the distance between the sensor and the induction plate and calibrate the sensing accuracy; every 6 months, use a multimeter to test the sensor’s signal output to ensure it meets the standard range. Set up a “protective baffle” around the sensor if necessary to prevent debris from damaging the probe .
Replacement Cycle of Elevator Leveling Sensor XAA21751X1/X3
The replacement cycle of the XAA21751X1/X3 elevator leveling sensor is closely related to operating frequency and the working environment of the shaft. Under normal circumstances (elevator daily operation 12-24 hours, shaft environment dry and low-dust, no frequent vibration), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 3-4 years. This cycle is determined based on long-term field operation data and component aging tests, fully considering the attenuation of the sensing probe, aging of internal circuits, and loss of anti-interference performance.
For elevators in high-traffic areas (e.g., large shopping malls, airports with daily operation ≥ 20 hours) or harsh environments (shaft with high humidity, heavy dust, large temperature fluctuations, or severe vibration), the replacement cycle should be shortened to 2-3 years . High-frequency operation accelerates the wear of the sensing probe, while harsh environments cause component corrosion and reduce signal stability. 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 4-5 years, but only after inspection and confirmation by Nanjing Zhuye’s technicians that the sensor’s accuracy and signal transmission performance meet standards.
Replace the sensor immediately if any of the following issues occur, regardless of its service life: The elevator has obvious leveling errors (gap exceeding 5mm) that cannot be corrected by calibration; the sensor fails to transmit signals or transmits intermittent signals, causing the elevator to stop abnormally; the sensor housing is cracked or damaged, losing waterproof and dustproof performance; the sensing probe is severely worn or contaminated, and the accuracy cannot be restored after cleaning; the sensor causes frequent elevator control system faults related to leveling.
The Elevator Leveling Sensor XAA21751X1/X3 from Nanjing Zhuye Elevatorparts integrates high precision, durability, and strong compatibility, providing a critical positioning guarantee for elevator operation. By following the correct usage, maintenance, and replacement guidelines, you can effectively ensure the elevator stops accurately at each floor, improve passenger comfort, and reduce faults caused by leveling errors. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic XAA21751X1/X3 leveling sensors, as well as professional services including model matching, on-site installation guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the stable and safe operation of your elevator.
