Elevator Photocells: Technology, Working Principles, and Their Critical Role in Safety
Elevators are an essential part of daily life and are used millions of times a day. With such heavy use, safety, comfort and uninterrupted operation are the most important criteria. One of the most basic safety equipment that meets these criteria is elevator photocells.
Photocells play a critical role, especially in door safety. Despite their simple appearance, they contain sensitive sensor technology. In this article, we'll discuss elevator photocells. working principles, technical features, advantages and areas of use we will examine it in detail.
What is an Elevator Photocell?
Elevator photocell ensures the safety of users during the opening and closing of cabin doors. optical sensor system. At the door entrance, an invisible sign infrared light curtain creates.
- If this curtain of light a person, thing or any obstacle If the door is interrupted by the photocell system, it either prevents the door from closing or reopens the door.
- This eliminates the risk of passengers getting trapped or injured.
Working Principle of Photocells
The operating logic of photocells, emitter and receiver It is based on infrared light rays between
- Transmitter unitemits numerous beams of infrared light.
- Receiving unit, perceives these rays from the opposite side.
- When an obstacle forms in the doorway, the light beams are interrupted.
- The control circuit detects this situation and opens the door. stop closing / opening sends the command.
Photocells used today, single beam And multi-beam/light curtain Multi-beam systems create a much wider detection curtain and maximize security.
Technical Specifications and Standards
The quality of elevator photocells is determined by the sensor technology, detection sensitivity and compliance with standards It is measured by. The technical features that a good photocell should have:
- Detection Distance: It should be effective up to 0 – 4 meters.
- Detection Sensitivity: It should be able to detect even small objects of 1-2 cm size.
- Number of Beam: Models range from 24 to 174 light beams. The higher the number of beams, the higher the level of security.
- Supply Voltage: It is usually between 12 and 24 V DC.
- Protection Class (IP): It should offer IP54 – IP65 level protection against dust, moisture and impacts.
- Operating Temperature: It should be able to operate safely between -20°C and +65°C.
- Standards: Must comply with CE, EN81-20 and EN81-50 standards.
These features make the photocell useful not only in daily use but also in industrial and heavy-traffic elevators ensures trouble-free operation.
Advantages of Photocells
1. Maximum Security
The biggest advantage of photocells is that they can cause problems when the door is closing. to prevent jamming accidentsThis ensures safe use for children, the elderly and people with limited mobility.
2. Comfortable Use
Passengers can enter and exit the elevator without rushing. Especially shopping malls, hospitals, business centers It offers great comfort in intensively used buildings such as.
3. Longer Door Life
Photocells prevent the doors from hitting obstacles and being forced open. The life of the door motor and mechanical parts is extended, maintenance costs decrease.
4. Energy Efficiency
Reduction in malfunctions, energy saving It also reduces operating costs by shortening maintenance times.
What to Consider When Choosing a Photocell?
Choosing the right photocell is crucial for operational efficiency as well as safety. When making your selection, consider the following:
- Detection width and beam number (the more, the safer)
- Compatibility with door types (centrally opening, telescopic, fully automatic doors)
- Ease of installation (Slim profile models that provide quick installation should be preferred)
- Certificates and standards (Must be EN81-20 compliant)
- Durability (must have a high protection class against dust, moisture and impact)
Areas of Use
Elevator photocells are standard in almost all modern buildings today:
- Residential Buildings – Basic need for safety and comfort
- Shopping Malls – Systems resistant to heavy human traffic
- Hospitals – Safe passage of stretchers and wheelchairs
- Hotels and Business Centers – Prestigious appearance and raising safety standards
- Industrial Facilities – Safe transportation in freight and service elevators
Conclusion
Elevator photocells, one of the most critical components that define the safety standards of modern elevators. It ensures user safety, increases comfort, and provides businesses with advantages by reducing maintenance costs.
A correctly selected photocell system that complies with international standards protects not only passengers but also the life of the elevator system.
As SamasWith the high-quality photocell systems we import, we offer reliable solutions for both modernization projects and new installations.
Choose Samas – Take safety and comfort to the highest level in your elevators.
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