High-Precision Measurement And Detection Light Curtain

★ High precision DOL series measuring light curtain is suitable for high precision detection and measurement. It includes on-line detection, size measurement, contour detection, accuracy correction, hole detection, shape detection, edge and center positioning, tension control, part counting, on-line product size detection and similar detection and measurement. Each system consists of a high-resolution transmitter and receiver, and two cables.

★ Perfect self-check function: When the safety screen protector fails, ensure that the wrong signal is not sent to the controlled electrical appliances.

★ Strong anti-interference ability: The system has good anti-interference ability to electromagnetic signal, stroboscopic light, welding arc and surrounding light source;

★ Easy installation and debugging, simple wiring, beautiful appearance;

★ Surface mounting technology is adopted, which has superior seismic performance.

★ It conforms to lEC61496-1/2 standard safety grade and TUV CE certification.

★ The corresponding time is short (< 15ms), and the safety and reliability performance is high.

★ The dimension design is 36mm*36mm. The safety sensor can be connected to the cable (M12) through the air socket.

★ All electronic components adopt world-renowned brand accessories.

The safety light curtain mainly consists of two parts, namely the emitter and the receiver. The transmitter emits infrared rays, which are received by the receiver to form a light curtain. When an object enters the light curtain, the light receiver responds immediately through the internal control circuit and controls the equipment (such as a punch) to stop or alarm to protect the operator. safety and ensure the normal and safe operation of the equipment.

There are multiple infrared transmitting tubes installed at equal intervals on one side of the light curtain, and the same number of infrared receiving tubes arranged in the same arrangement on the other side. Each infrared transmitting tube has a corresponding infrared receiving tube and is installed on the same straight line. . When there are no obstacles between the infrared transmitting tube and the infrared receiving tube on the same straight line, the modulated signal (light signal) emitted by the infrared transmitting tube can successfully reach the infrared receiving tube. After the infrared receiving tube receives the modulated signal, the corresponding internal circuit outputs a low level. However, in the presence of obstacles, the modulated signal (light signal) emitted by the infrared transmitting tube cannot reach the infrared receiving tube smoothly. At this time, the infrared receiving tube The tube cannot receive the modulation signal, and the corresponding internal circuit output is high level. When no object passes through the light curtain, the modulated signals (light signals) emitted by all infrared transmitting tubes can successfully reach the corresponding infrared receiving tube on the other side, causing all internal circuits to output low level. In this way, information about the presence or absence of an object can be detected by analyzing the internal circuit status.

1. It is necessary to consider the specific environment and operation of the operator. If the machine equipment is a paper cutter, the operator enters the dangerous area more frequently and is relatively close to the dangerous area, so accidents are easy to occur, so the optical axis spacing should be relatively small. Light curtain (eg: 10mm). Consider light curtains to protect your fingers.

2. In the same way, if the frequency of entering the dangerous area is relatively reduced or the distance is increased, you can choose to protect the palm (20-30mm).

3. If the dangerous area needs to protect the arm, you can choose a light curtain with a slightly larger distance (40mm).

4. The maximum limit of the light curtain is to protect the human body. You can choose the light curtain with the largest distance (80mm or 200mm).

It should be determined according to the specific machine and equipment, and conclusions can be drawn based on actual measurements. Pay attention to the difference between the height of the safety light curtain and the protection height of the safety light curtain.  [The height of the safety light curtain: the total height of the safety light curtain's appearance; the protection height of the safety light curtain: the effective protection range when the light curtain is working, that is, the effective protection height = optical axis spacing * (total number of optical axes - 1)]

The through-beam distance is the distance between the transmitter and the receiver. It should be determined according to the actual situation of the machine and equipment, so that a more suitable light curtain can be selected. After determining the shooting distance, the length of the cable should also be considered.

It must be determined according to the signal output method of the safety light curtain. Some light curtains may not match the signals output by the machine equipment, which requires the use of a controller.

Choose L-shaped bracket or base rotating bracket according to your needs.