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Dqe Infrared Beam Safety Light Curtain
Product characteristics
★ Self-check function: If the safety screen protector fails, verify that no incorrect signal is conveyed to the regulated electrical equipment. The system has strong anti-interference ability against electromagnetic signals, stroboscopic light, welding arcs, and other light sources. It is also easy to install and debug, with simple wiring and a beautiful appearance. Surface mounting technology is used for superior seismic performance.
★ Meets EC61496-1/2 safety standards and has TUV CE certification. The corresponding time is short (<10ms), with great safety and reliability performance. The dimensions are 35mm x 51mm.
★ The safety sensor can be attached to the cable (M12) via the air socket. All electronic components use world-renowned brand accessories.
The safety light curtain comprises mostly of two parts: the emitter and the receiver. The transmitter sends out infrared rays, which are received by the receiver and form a light curtain. When an object enters the light curtain, the light receiver responds promptly via the internal control circuit, causing the equipment (such as a punch) to halt or sound an alarm to safeguard the operator. ensuring that the equipment operates normally and safely. On one side of the light curtain, many infrared transmitting tubes are installed at equal intervals, while the opposite side has the same number of infrared reception tubes arranged in the same manner. Each infrared transmission tube has a corresponding infrared receiving tube and is positioned in a single straight line. The modulated signal (light signal) emitted by the infrared transmitting tube can effectively reach the infrared receiving tube if there are no obstructions in the same straight line between them. When the infrared receiving tube receives the modulated signal, the matching internal circuit produces a low level. However, in the presence of difficulties; The modulated signal (light signal) emitted by the infrared transmitting tube does not reach the infrared receiving tube smoothly. At this moment, the infrared receiving tube The tube is unable to receive the modulation signal, and the resulting internal circuit output is high level. When no item passes through the light curtain, the modulated signals (light signals) emitted by all infrared transmitting tubes are able to reach the corresponding infrared receiving tube on the other side, causing all internal circuits to output low levels. Analyzing the internal circuit status can provide information on the presence or absence of an object.
Guide on Choosing the Right Safety Light Curtain
Step 1: Find the safety light curtain's optical axis spacing, or resolution.
1. The operator's operation and particular surroundings must be taken into account. The optical axis spacing should be somewhat narrow if the machine equipment is a paper cutter since the operator visits the risky area more often and is quite close to it, making accidents more likely to occur. thin curtain, like 10 mm. To safeguard your fingers, think about using light curtains.
2. In a similar vein, you can decide to shield your palm (20–30 mm) if you approach the harmful area less frequently or if you go farther.
3. A light curtain with a little greater distance (40mm) can be used to shield the arm from the harmful area.
4. The light curtain's highest limit is to safeguard human health. The light curtain with the greatest distance (either 80 or 200mm) is yours to select.
Step 2: Select the light curtain's protection height.
Actual measurements can be used to establish conclusions, and the determination should be made in accordance with the particular machine and equipment. Keep an eye out for the distinction between the safety light curtain's protective height and height. [The height of the safety light curtain: the entire height at which it appears; the safety light curtain's protection height: the effective protection height = optical axis spacing * (total number of optical axes - 1)] is the effective protection range when the light curtain is in operation.
Step 3: Choose the anti-reflection distance for the light curtain.
The distance between the transmitter and the receiver is known as the through-beam distance. To choose a more appropriate light curtain, it should be ascertained based on the machine's and equipment's actual circumstances. The length of the cable should be taken into consideration when the firing distance has been established.
Step 4: Ascertain the light curtain signal's output kind.
It needs to be ascertained using the safety light curtain's signal output mechanism. A controller is necessary because some light curtains might not match the signals that the machine equipment outputs.
Step 5: Choose a bracket
Depending on your demands, select an L-shaped bracket or a base rotating bracket. Technical Product Specifications