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Elevator weighing devices are our company's mainstream products, and The elevator/lift weighing device( EWD-H-XJ3 )is a typical cylindrical weighing device.
 

1. Product Appearance, Interior Structure and Interface Directions:

Notice on Installation

1. Install this device as near as possible to the center of elevator car platform or the original place of elevator overload switch. The system should be installed on the bottom   bearing beam of elevator car platform with the inductive magnet adhering to the moveable car platform and the marking surface facing to the inductive point of the weighing device.
2. The system supporting frame should be made according to elevator concrete situation with the uneasily deforming material of thickness more than 4mm or with enforcing plate to avoid swaying.
3. Adjust this device so that the car platform magnet aiming to the center point of its upper section. Meanwhile, assure that the section of this device parallel to that of the magnet.

Description:

This elevator weighing device is installation of Elevator car bottom .

This is our company's elevator weighing device (Model: EWD-H-XJ3).
 
This device has Six  Primary  Features:
No.1 It is Easy installation,only five minutes.
No.2 Weighing Accurate about 0.5 %.
No.3 alarm  Code is  visually displayed in LED screen.
No.4 Simple programming just two keys program all parameters.
No.5 Three programmable alarm values (Light load, Full Load and Overload).
No.6 Fits most common elevator models.

The elevator/lift weighing device (also known as the elevator load-bearing device) is a key component in the elevator safety system. Its core function is to ensure the safe operation of the elevator by monitoring the weight in the car in real time. The specific functions are as follows:

1. Prevent overload accidents

When the weight in the elevator cabin reaches 95% of the rated load, the elevator/lift weighing device will trigger a full load signal; if it exceeds 102%~110% (slightly different in different standards), the overload protection will be activated, preventing the elevator from running and triggering a buzzer or warning light.

After the overload protection is activated, the elevator may appear to be unable to close the door or stop running until the load returns to normal.

2. Feedback load information

The weight is converted into an electrical signal through a pressure sensor, and after processing, real-time load data is provided to the control system for adjusting the elevator operation status (such as starting compensation functions or anti-tampering programs).

Some devices can also distinguish between different states such as light load and full load to optimize elevator energy efficiency.

3. Cooperate with other safety functions

Work in conjunction with the counterweight device to balance the mass difference between the car and the counterweight (usually the counterweight mass = car mass + 40%~50% of the rated load), reduce motor power consumption and extend the life of the wire rope.