*Operation control assures normal work during accident, power failure and earthquake
The earthquake sensor is set to “S” wave. When there is a microseism, a light is switched on with a voice alarm. If the shock intensity is up to “P” wave, the elevator will stop at the nearest emergency level. After the set time is over, it will operate as usual.
*Operation control for fire
In case of fire, the operation control will switch on the light when it stops the elevator at the emergency level. It will open the door until the set time is over.

*Protection machine function in case of malfunction and passenger confinement
Dong Her Elevator has developed 3E, EEES Emergency Escape Device for manual operation to control the horizontal landing protecting the passengers in case of malfunction.

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