Safety edge: This device is mounted on the edge of the elevator cab door and is operated mechanically. By pushing the edge back towards the door it will cause the elevator to re-open the door.
Electric photo eye: These are two part device that include a light beam transmitter and a light reflector. Generally located on the elevator cab door and door strike column at 5 inches and 29 inches up from the cab door sill. These devices detect an object when its beam has been broken and will cause the door to re-open without physical contact with the door.
Infrared light curtain: This device uses a transmitter and a receiver that extend the entire length of the cab door. The transmitter and receiver use infrared beams to curtain the entire opening of the door and if any beam is broken the door will re-open.
ADA Emergency Telephone: Provides reliable emergency communication without complicated dialing procedures. Provides a voice message recorder identifying the location of the elevator. The American with Disabilities Act require a two way voice emergency communication system in most elevators. In additional these systems must be motioned 24-hour a day at a location capable of dispatching help.
Emergency lighting and Alarm Bell: The function of the emergency lighting is to automatically engage when the normal power supply fails, it will illuminate the cab and allow passenger the use of the alarm bell and alert people of their entrapment.
Emergency elevator door key: A special tool used to unlock and open the elevator hall doors. Authorized Personnel that have been instructed in its proper use should only use this device.
Emergency exit: An escape hatch is located on the top and sometimes the sides of the elevator cab. These exits should always be locked from the outside and only used for rescue by a fireman or other emergency professional. |