How does the elevator photocell work?
Photocell is one of the parts of the elevator that increases the safety of the elevator. The task of the photocell in the elevator is to detect various obstacles such as people, cars, etc. when the cabin door is closed and to prevent the elevator door from closing. There are different types of photocells, including point and curtain photocells.
How the elevator photocell works
How the elevator photocell works is that the photocell is connected on both sides of the elevator cabin door. This sensor creates invisible light in a certain radius on one side, which receives the light on the other side. If an object blocks the light from reaching the other side of the door when the cabin door is closed, the cabin door will not close and the elevator will not move.
Eye or point photocell
As we mentioned at the beginning, one of the most widely used types of photocells in the market is the regional or eye model. The name of this photocell clearly explains how it works. In the point photocell, the invisible light is in the form of a point and in the form of a laser. This model has low accuracy because
if an object is located above or below the eyepiece, the photocell does not detect it and the cabin door is closed. Point photocells are usually installed at a distance of 60 cm from the ground.
The point photocell has a lower cost than the curtain photocell and, as we said, it only supports one point. The components of a point photocell are as follows:
• Power supply
• Power transmission wire
• Elevator photocell circuit
• Laser
• Laser transmitter and receiver part
Curtain photocell
The best photocell available in the Iranian market is the curtain photocell. The curtain photocell has the same function as the point model, and the only difference between these two photocells is that, unlike the defective photocell, the curtain photocell can cover multiple points and completely cover the entire surface of the elevator door. For this reason, the security of curtain photocell is much higher and it is one of the safety points of elevators .
A curtain photocell, as its name suggests, completely covers the entrance of the elevator cabin like a curtain. The installation place of the curtain photocell is between the door slat and the body of the elevator cabin, for this reason, their diameter should be at least 8 mm. Since the parts used in a curtain photocell are more than a point photocell, the price of a curtain photocell is more than a point photocell.
The important thing about photocells is that if they are not installed correctly, their performance is completely questioned and they may be dangerous.
How much is the price of elevator photocell?
Elevator photocell has a different price, which varies depending on its type and brand. The famous photocell brands include Voko and Memco, which are among the reputable foreign brands and their prices are high. Fake samples of these brands are also available in the market, and you can buy elevator photocells by paying a lower price.
Having the necessary licenses in the field of elevators, Technonata Company installs all types of photocells in the best possible way depending on the customer's needs during the installation of elevators in different buildings and guarantees it. Also, if this sensor is damaged, Teknonata's emergency repair team will visit the building in less than an hour and repair it.Elevator photocell has a different price, which varies depending on its type and brand. The famous photocell brands include Voko and Memco, which are among the reputable foreign brands and their prices are high. Fake samples of these brands are also available in the market, and you can buy elevator photocells by paying a lower price. Having the necessary licenses in the field of elevators, Technonata Company installs all types of photocells in the best possible way depending on the customer's needs during the installation of elevators in different buildings and guarantees it. Also, if this sensor is damaged, Teknonata's emergency repair team will visit the building in less than an hour and repair it.