Photoelectric Beam & Safety Bump Strip
A through beam sensor uses a transmitter and receiver for long range detection, a reflector type photoelectric beam uses a reflective surface to detect objects, and an edge safety bump strip ensures safety by detecting pressure along automatic gates or roller doors edges.
PE1800
- Supply : 12 – 240Volts AC/DC
- Sensing Range : 10 metres
- Type : Supervised & Retro Reflective
Bump Strip
- Bump Strip Length: 1.5 metres
- PentaFOB® transmitter included
- PCR43301RE : Penta receiver included
- Operating range : Up to 100 metres
HD-15
The HD-15 is a durable hood designed to protect reflectors from harsh weather conditions, ensuring reliable performance and longevity.
Safety Devices for Automatic Gates and Roller Doors
Photoelectric beams and safety bump strips are essential safety devices for automatic gates and roller doors, ensuring smooth operation while protecting users and vehicles. The photoelectric beam (also known as photo beam) is a sensor that detects objects or obstructions in the path of the gate or door by using a transmitter and receiver. When an object interrupts the invisible beam, the system immediately halts the movement of the gate or door, preventing potential accidents. This makes photoelectric beams ideal for high traffic areas, ensuring safety for pedestrians and vehicles.
Safety bump strips, also known as edge safety strips, are pressure sensitive devices installed along the edges of automatic gates and roller doors. These strips detect contact with any object or person. When pressure is applied to the strip, the gate or door stops or reverses its movement to avoid injury or damage. Safety bump strips are commonly used in industrial and commercial settings, as well as residential properties, offering an additional layer of protection in environments where heavy gates and doors are in use.
Both safety devices are crucial for meeting safety regulations and providing peace of mind. By incorporating photoelectric beams and safety bump strips into automatic gate and roller door systems, you ensure reliable protection against accidents. These devices are durable and designed to perform in various weather conditions, making them suitable for outdoor installations. They also contribute to the overall longevity of automatic systems by reducing the likelihood of collisions or wear and tear from repeated impact.
Enhance your property’s security and convenience with automatic gates. Learn more about different gate types, features and safety in this detailed article.
Elsema: Frequently Asked Questions
What is the primary function of an Elsema photoelectric beam?
A photoelectric beam is a safety sensor that creates an invisible infrared link across a driveway or opening. If the beam is obstructed by a vehicle, person, or object, it sends a signal to the gate controller to stop or reverse the gate’s movement, preventing potential accidents or damage.
What is the difference between Through Beam and Retro-Reflective sensors?
- Through Beam (e.g., PE3000): Consists of a separate transmitter and receiver. It offers the longest range (up to 25m–50m) but requires wiring to both sides of the gate.
- Retro-Reflective (e.g., PE1500, PE1800): Consists of a combined transmitter/receiver unit on one side and a non-powered reflector on the other. This simplifies installation as wiring is only required on one side.
What does Polarised mean in the context of these sensors?
Models like the PE1500 and PE1800 use polarised technology to prevent false triggers. Standard reflectors can sometimes be deceived by shiny objects like a white truck or a wet car. Polarised beams ensure the sensor only recognizes light bounced back specifically by its matching reflector.
What is a Monitored photo beam?
The PE1800 is a monitored sensor. When paired with a compatible Elsema control card, the system constantly checks that the sensor is working before allowing the gate to move. It can detect if the sensor wire is cut or shorted or if the internal circuitry has failed, providing a higher safety rating (Entrapment Protection).
What is the sensing range of Elsema PE beams?
Range varies by model and environment:
- PE1500/PE1800: Approximately 10–12 metres outdoors.
- PE3000: Up to 25 metres outdoors and 50 metres indoors.
Note: Heavy rain, thick fog, or dust can reduce these operating distances.
Can the Elsema PE beams operate on different voltages?
Yes. Most Elsema PE beams feature a wide-range power input (e.g., 12V to 250V AC/DC). This universal compatibility allows them to be powered directly from almost any gate controller, whether it is a low-voltage solar system or a mains-powered industrial unit.
Are the Elsema PE beams weatherproof?
Yes, they are designed for harsh Australian conditions. Units like the PE1500 and PE1800 are IP66 rated, meaning they are protected against dust and powerful water jets. They are typically housed in UV-stabilized polycarbonate casings to prevent sun damage.
How do I know if the beam is properly aligned during installation?
Elsema sensors include a built-in LED alignment indicator. When the transmitter and the reflector (or receiver) are perfectly aligned, the LED changes colour or turns off/on (depending on the model), providing instant visual feedback during setup.
What is the purpose of the Tamper Switch?
The tamper switch is an added security feature. If someone attempts to open the sensor cover to disable the safety system or vandalize the unit, the tamper switch triggers a Normally Closed (NC) contact that can be wired to an alarm system or security panel.
Can I use these for something other than gates?
Yes, while commonly used for gates and garage doors, they are also used for:
- Industrial conveyors to detect products.
- Loading bays to alert staff of arriving trucks.
- Perimeter security to trigger alarms when a boundary is crossed.
