Description
Elevator weighing switch DW-01 Brief Introduction
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Product Name |
Elevator weighing switch |
| Model Number | DW-01 |
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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 Weighing Switch DW-01 – Nanjing Zhuye Elevatorparts
The elevator weighing system is a key safety component that prevents overloading and ensures stable operation, and the weighing switch serves as its “core control switch.” The Elevator Weighing Switch DW-01 provided by Nanjing Zhuye Elevatorparts is a high-precision detection component tailored for elevator weighing systems. It is widely compatible with mainstream elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This switch accurately detects the elevator’s load status, triggering overload alarms and cutting off the elevator start circuit when the load exceeds the rated value, effectively avoiding safety hazards caused by overloading. Crafted with high-sensitivity pressure sensors, high-temperature resistant electronic components, and a sealed shell, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.
Nanjing Zhuye Elevatorparts adheres to the core philosophy of “Precision Weighing, Safe Protection” and implements strict quality control throughout the production process of the DW-01 elevator weighing switch. Each unit undergoes rigorous testing, including load detection accuracy verification, pressure sensitivity testing, temperature adaptability assessment, and durability testing. The switch has a high weighing accuracy (error ≤ ±2%), supporting a load range of 0-2000kg to meet the needs of different elevator models. The internal pressure sensor has a mechanical life of ≥ 1 million times, ensuring stable performance even after long-term high-frequency use. The sealed shell with IP64 protection rating effectively resists dust, moisture, and oil stains in the elevator shaft and car bottom, adapting to harsh operating environments. The built-in anti-interference circuit ensures accurate signal transmission even in complex electrical environments.
Usage Guide for Elevator Weighing Switch DW-01
Correct installation, calibration, and maintenance are crucial to ensuring the reliable performance of the DW-01 elevator weighing switch. Nanjing Zhuye Elevatorparts emphasizes that only certified elevator maintenance technicians are allowed to perform related operations, as improper use may lead to weighing inaccuracy or overload protection failure.
1. Pre-Installation Preparation
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 and rated load match the DW-01 weighing switch (check parameters such as installation dimensions, load range, and signal type). 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 weighing system, lock the switch, and place a “Maintenance in Progress” warning sign at the landing doors and machine room entrance. Remove the elevator car bottom cover (if necessary) to locate the weighing switch installation position. Finally, prepare professional tools such as a screwdriver, wrench, multimeter, and calibration weights, and clean the installation position to remove dust, debris, and oil stains.
2. Installation & Calibration
2. Installation & Wiring
If replacing the old weighing switch, first take photos to record the wiring positions, installation direction, and calibration parameters for later reference. Disconnect the wires from the old switch according to the labels and remove the old switch. Take the new DW-01 weighing switch from Nanjing Zhuye Elevatorparts, install it on the car bottom or weighing beam according to the installation diagram, and fix it firmly with screws (ensure the switch is evenly stressed). Connect the wires to the corresponding terminals strictly following the photos and the wiring diagram provided by Nanjing Zhuye—connect the power line to the “DC+/DC-” terminal, the signal line to the “SIG” terminal, and the alarm line to the “ALM” terminal. After wiring, perform calibration: Place standard weights (25%, 50%, 75%, 100%, 110% of the rated load) on the car floor in sequence, and adjust the calibration potentiometer on the switch to ensure the switch’s output signal matches the actual load. When the load reaches 110% of the rated value, the switch should trigger the overload alarm and cut off the start circuit.
Debugg3. Operation & Daily Maintenance
Install the car bottom cover back, restore the power supply, and switch the elevator to inspection mode. Test the weighing function with actual loads: No overload alarm when the load is within the rated range; overload alarm sounds and the elevator cannot start when the load exceeds 110% of the rated value. Operate the elevator to run up and down multiple times to check the switch’s signal stability. For daily maintenance, inspect the switch during monthly shaft patrols: Check if the shell is damaged, deformed, or loose; confirm wiring terminals are tight and free of oxidation; clean the switch surface with a dry cloth. Every 3 months, recheck the calibration accuracy with standard weights; every 6 months, inspect the internal wiring (if accessible) and replace the dust cover if it is damaged. For elevators in high-traffic or harsh environments, increase the inspection and calibration frequency to biweekly.
Replacement Cycle of Elevator Weighing Switch DW-01
The replacement cycle of the DW-01 weighing switch is closely related to operating frequency and environmental conditions. Under normal circumstances (elevator daily operation 12-24 hours, car load within the rated range most of the time, operating environment dry and low-dust), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 3-4 years. This cycle is determined based on long-term field operation data, sensor aging tests, and circuit performance assessments, fully considering the wear of the internal pressure sensor and the aging of electronic components.
For elevators in high-traffic areas (e.g., large shopping malls, freight elevators with frequent full-load operation) or harsh environments (e.g., high humidity, heavy dust, frequent vibration), the replacement cycle should be shortened to 1.5-2.5 years. High-frequency load changes accelerate sensor wear, while harsh environments cause corrosion of the shell and terminals and affect circuit performance. 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 switch’s weighing accuracy and signal stability meet safety standards.
Replace the switch immediately if any of the following issues occur, regardless of its service life: The weighing accuracy error exceeds ±5% (uncorrectable by recalibration); the switch fails to trigger an overload alarm when the load exceeds the rated value; the switch falsely alarms (triggers overload alarm when the load is within the rated range); the shell is severely damaged, deformed, or corroded; the wiring terminals are severely oxidized or burned, causing intermittent signal failure; the internal circuit is faulty, leading to no signal output.
The Elevator Weighing Switch DW-01 from Nanjing Zhuye Elevatorparts integrates precision, durability, and compatibility, providing a solid safety guarantee for elevator weighing systems. By following the correct usage, maintenance, and replacement guidelines, you can effectively ensure the accurate detection of elevator load, prevent overload accidents, and improve the overall safety level of the elevator. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic DW-01 weighing switches, as well as professional services including model matching, on-site calibration guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the safety of your elevator weighing system.
