Description

Elevator load weighing device DAA24270N1/2/3/4/5 Brief Introduction

Product Name	Elevator load weighing device
Model Number	DAA24270N1 DAA24270N2 DAA24270N13 DAA24270N4 DAA24270N5
Quality	Original.Brand New
Payment	T/T. Paypal. Western Union
Delivery	3-5 Working Days
Packaging	Packed by carton

5: Load Monitoring Core from Nanjing Zhuye Elevatorparts

Elevator Load Weighing Device DAA24270N1/2/3/4/5 is a critical safety monitoring component for elevator systems, specifically designed to accurately detect the load weight in the elevator car and transmit real-time load signals to the main control system. As the “load sensor” of elevators, the DAA24270N series (including N1/N2/N3/N4/N5 models with different load ranges) ensures the elevator operates within the rated load (compatible with 630kg–2000kg elevator models). It triggers overload alarms when the load exceeds the limit and optimizes traction system parameters based on actual load, laying a solid foundation for the safe and efficient operation of elevators. Exclusively supplied by Nanjing Zhuye Elevatorparts (a professional and trusted distributor of high-quality elevator components), the Elevator Load Weighing Device DAA24270N1/2/3/4/5 fully complies with international elevator safety standards (EN 81-20, GB 7588) and is compatible with mainstream elevator brands and control system models. Featuring high weighing accuracy, stable signal transmission, and strong environmental adaptability, this device series provides reliable operational guarantees for elevators in residential buildings, commercial complexes, office towers, hospitals, and other scenarios worldwide.

Nanjing Zhuye Elevatorparts adheres to the core philosophy of “safety first, quality-oriented” and implements strict quality control over the DAA24270N1/2/3/4/5 load weighing device. Each device undergoes multi-stage pre-delivery inspections, including weighing accuracy testing, signal stability verification, temperature drift detection, and mechanical strength trials. The product adopts high-precision strain gauge sensors, a high-strength aluminum alloy shell, and an optimized signal processing module: the strain gauge sensors ensure weighing accuracy (error ≤ ±2% of rated load) and long-term stability; the aluminum alloy shell is subjected to anti-corrosion treatment, adapting to the humid and vibrating environment in the elevator car; the signal processing module converts analog load signals into digital signals, ensuring anti-interference ability and stable transmission to the main control system. The standardized mounting interfaces and adjustable sensing ranges of DAA24270N1/2/3/4/5 are tailored to match different elevator car structures and rated loads, eliminating the need for complex modifications and ensuring quick installation.

Step-by-Step Usage Guide for Elevator Load Weighing Device DAA24270N1/2/3/4/5

To ensure the reliable operation of the elevator’s load monitoring system and extend the service life of the DAA24270N1/2/3/4/5 device, follow the professional guidelines provided by Nanjing Zhuye Elevatorparts for installation, calibration, and maintenance:

1. Professional Installation & Calibration

Installation must be performed by certified elevator technicians familiar with elevator control systems. Prior to installation, confirm the compatibility of the device model (DAA24270N1/2/3/4/5) with the target elevator’s rated load and car structure using the detailed compatibility manual provided by Nanjing Zhuye Elevatorparts. The steps are as follows:

Safety Preparation: Cut off the elevator’s main power supply and fix the elevator car to a safe position aligned with the floor using a safety clamp. Clean the mounting area (usually under the car floor or on the traction beam) to remove dust, oil stains, and debris that may affect weighing accuracy.
Device Installation: Fix the DAA24270N1/2/3/4/5 weighing device to the dedicated mounting bracket using high-strength bolts provided by Nanjing Zhuye Elevatorparts. Ensure the device is installed horizontally (tilt angle ≤ 1°) and fully fits the force-bearing surface without gaps. Connect the device’s signal line and power line to the elevator main control system according to the wiring diagram, ensuring correct polarity and tight connections.
Weighing Calibration: After wiring, restore the power supply and switch the elevator to inspection mode. Perform zero calibration first (no load in the car) to reset the device’s zero point. Then place standard weights (25%, 50%, 75%, 100%, 110% of rated load) in the car sequentially, and calibrate the device through the main control system to ensure the displayed load value matches the actual weight (error ≤ ±2%). Set the overload alarm threshold (usually 110% of rated load) to ensure the alarm is triggered reliably.
Post-Installation Testing: Conduct comprehensive functional tests under different load conditions. Verify the device’s weighing accuracy with actual passengers or weights; simulate overload scenarios to check if the alarm is triggered and the elevator refuses to start (in line with safety requirements). If there is large weighing error, unstable signals, or failure to trigger overload alarms, recheck the installation and calibration immediately.

2. Daily Operation & Routine Inspection

Regular inspections are crucial to early detection of device faults and ensuring the safety of the elevator system. Maintenance personnel should incorporate the following checks into their daily patrols:

Daily Visual Inspection: During car and shaft patrols, check the external state of the DAA24270N1/2/3/4/5 device. Ensure the shell is free of cracks, deformation, or corrosion; the wiring terminals are tight with no looseness, oxidation, or poor contact; the force-bearing surface is clean and free of foreign objects that may affect force transmission.
Weekly Functional Check: Use standard weights or record actual passenger loads to verify the device’s weighing accuracy. Check if the overload alarm function works normally (place weights exceeding 110% of rated load to trigger the alarm). Listen for abnormal noise from the device area during elevator operation to confirm no loose components.
Monthly Parameter Monitoring: Turn off the power supply and clean the device’s shell, force-bearing surface, and wiring terminals with a dry, lint-free cloth to remove dust and debris. Use a multimeter to detect the device’s input voltage (ensure it matches the rated voltage) and output signal voltage, confirming the signal is stable. For elevators in harsh environments (high humidity, large temperature differences), check the device’s grounding status to ensure effective anti-interference.

3. Regular Maintenance Schedule

Systematic maintenance can effectively extend the service life of the Elevator Load Weighing Device DAA24270N1/2/3/4/5. Follow Nanjing Zhuye Elevatorparts’ recommended maintenance plan:

Quarterly Maintenance: Disconnect the power supply, remove the device from the mounting bracket, and thoroughly clean the shell, force-bearing surface, and internal sensors with a professional cleaner. Inspect the strain gauge sensors for damage or aging (replace if necessary) and recheck the tightness of all fixed bolts. Reinstall the device and perform zero calibration again to ensure weighing accuracy.
Semi-Annual Performance Test: Conduct a comprehensive performance test, including weighing accuracy, signal response speed, and overload alarm reliability. Use a professional weighing tester to simulate different load values and verify the device’s output signal accuracy. For elevators in high-traffic areas (e.g., shopping malls, airports) or harsh environments (high humidity, frequent vibration), increase the test frequency.
Annual Professional Overhaul: Arrange a professional inspection with Nanjing Zhuye Elevatorparts’ certified technical team. Replace the device’s aging components (such as sensors or signal processing modules) with genuine parts. Recalibrate the weighing accuracy and overload alarm threshold to meet the original factory performance standards and the elevator’s actual operating requirements. Inspect the matching components (such as alarm buzzers) and replace them if necessary.

Recommended Replacement Cycle for Elevator Load Weighing Device DAA24270N1/2/3/4/5

As a core safety monitoring component bearing long-term mechanical pressure, environmental erosion, and frequent signal transmission, the DAA24270N1/2/3/4/5 load weighing device has a specified service life. Timely replacement is critical to avoiding device failure (such as reduced weighing accuracy, unstable signals, or failure to trigger overload alarms), which may lead to elevator overloading, traction system damage, or even serious safety accidents.

1. Standard Replacement Cycle

Under normal operating conditions (elevator daily operation time 12–24 hours, daily load changes ≥ 50 times, environment temperature -10–60℃, humidity 10%–95%), the recommended replacement cycle for the Elevator Load Weighing Device DAA24270N1/2/3/4/5 is 4–5 years. This cycle is determined based on Nanjing Zhuye Elevatorparts’ long-term field data, including sensor aging tests, weighing accuracy analysis, and actual operation feedback.

2. Adjustments for Special Scenarios

Harsh Environments: For elevators in high-humidity coastal areas (salt spray corrosion), high-dust construction sites, or elevators with frequent full-load operation (e.g., logistics centers, hospitals), the replacement cycle should be shortened to 3–4 years. Harsh conditions accelerate the wear of strain gauge sensors, corrosion of the shell and terminals, and reduce the device’s weighing accuracy and signal stability.
Low-Frequency Use Scenarios: For elevators with low usage frequency (e.g., villa elevators, small office buildings with daily operation time < 8 hours) and stable load changes, the replacement cycle can be extended to 5–6 years—only if Nanjing Zhuye’s professional inspection confirms that the device’s weighing accuracy, signal transmission stability, and component integrity are all intact.

3. Immediate Replacement Conditions

Replace the DAA24270N1/2/3/4/5 load weighing device immediately if any of the following issues occur, regardless of service life:

The weighing error exceeds ±5% of the rated load, and the error cannot be corrected through calibration and maintenance, affecting the elevator’s load monitoring reliability.
The device has unstable signal transmission (frequent signal loss or drift), leading to incorrect load display or failure to trigger overload alarms, posing safety hazards.
The strain gauge sensor is damaged or aging, and the force-bearing surface is severely deformed, resulting in inability to accurately detect the load weight.
The device has no signal output (confirmed by multimeter testing), and the fault cannot be eliminated by checking the power supply and wiring, affecting the normal operation of the elevator’s safety protection system.

In conclusion, the Elevator Load Weighing Device DAA24270N1/2/3/4/5 supplied by Nanjing Zhuye Elevatorparts is a high-quality, high-precision safety monitoring component tailored for elevator systems. By following the correct usage methods, maintenance schedules, and replacement cycles, elevator maintenance teams can effectively ensure the stable and safe operation of the elevator’s load monitoring system, improve passenger ride safety, and minimize failure risks. Choosing Nanjing Zhuye Elevatorparts means you get not only authentic DAA24270N1/2/3/4/5 load weighing devices but also professional technical support, including model matching guidance, installation advice, and prompt after-sales service.

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