Elevator OVERLOAD Device adjustment / when adjust overload

Elevator OVERLOAD Device adjustment / when adjust overload #normal #inspection
Overload Device:
An elevator overload device is a safety feature installed in elevators to prevent them from carrying a weight that exceeds their safe capacity. It typically consists of sensors or switches that detect the weight inside the elevator cabin. If the weight exceeds a predetermined limit, the overload device will trigger an alarm and prevent the elevator from moving until the excess weight is removed. This helps to ensure the safety of passengers and the proper functioning of the elevator.
How to work overload device:
The operation of an elevator overload device is relatively straightforward and primarily relies on sensors and switches to detect excess weight in the elevator cabin. Here’s a simplified explanation of how it works:
1. Weight Detection: Inside the elevator cabin, there are sensors or switches that are designed to measure the weight applied to the elevator floor. These sensors can be pressure-sensitive pads, load cells, or other mechanisms.
2. Weight Threshold: The elevator overload device is programmed with a predefined weight limit, which is the maximum safe capacity for that particular elevator. This limit is usually well below the elevator’s physical weight-bearing capacity to ensure safety.
3. Alarm and Safety Measures: When the detected weight in the elevator exceeds the predetermined threshold (i.e., when it becomes overloaded), the overload device triggers an alarm system. This alarm can include auditory signals, visual indicators, or both, alerting passengers and building personnel.
4. Elevator Lockout: In addition to sounding an alarm, the overload device may also prevent the elevator from moving. It can engage a safety mechanism that locks the elevator doors and prevents it from responding to any calls or commands until the excess weight is removed.
5. Reset: Once the excess weight is reduced below the safe limit, the elevator overload device can be reset, allowing the elevator to return to normal operation.

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