Photoelectric Laser Sensor

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As the manufacturing world becomes more and more automated, industrial sensors have become the key to increasing both productivity and safety. Industrial sensors are the eyes and ears of the new factory floor, and they come in all sizes, shapes, and technologies. Optonom OPS-401 model Photoelectric Laser Sensor is a device that detects a change in light intensity. Optonom OPS-401 simply made up an emitting element and a receiving element. The optical signal transmitted from the emitting part of the sensor is modified by sensing object and is then detected by the receiving part to generate corresponding output signal.

Optonom OPS-401 model Photoelectric Laser Sensor offer many advantages when compared to other technologies. Sensing ranges for photoelectric sensors far surpass the inductive, capacitive, magnetic, and ultrasonic technologies. Their small size versus sensing range and a unique variety of housings makes them a perfect fit for almost any application. Finally, with continual advances in technology, photoelectric sensors are price competitive with other sensing technologies.


FEATURES:
Non-contact Sensing
 Detects an object without contact. Non-contact sensing ensures longer life for the sensor and absolutely no damage to the object.
Long sensing range:
 The long sensing range make the sensors suitable for a variety of applications. The thru-beam type with a maximum sensing range of 20 m, and retrorefrective type with a maximum sensing range of 10m.
Short response time:
 The use of an optical beam for detection and complete electronic circuitry makes the sensors respond so quickly that they can be easily used on a high-speed production line.
High accuracy detection:
 Advanced optical system and electronic circuit technology have achieved a high sensing accuracy.

A. 2. TYPES OF SENSORS
Classification by sensing mode
- True-beam
Detects an object that interrupts the light beam traveling from the emitter to the receiver.
• Long sensing range
• Precise detection
• Small object detectable
• Not affected by shape, color or material of sensing objects (opaque)
- Retrorefrective
Detects an object that has a reflectivity smaller than the reflector and interrupts the light beam traveling between the sensor and the reflector.
• Easy beam alignment
• Wiring only on one side
• Space saving compared to thru-beam type sensors
• Not affected by shape, color or material of sensing objects (opaque)

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CLASSIFICATION BY OUTPUT CIRCUIT
Relay Contact
• Drives AC load or DC load
• Large switching capacity (A few ampere)
• Delayed response compared to non-contact output

NPN open-collector transistor
• Able to drive a relay, PLC, TTL, logic circuit, etc.
• A separate power supply can be used for the load.
• Long life
• High-speed response
• Commonly used in North America or Japan

PNP open-collector transistor
• Commonly used output circuit in Europe
• Power supply is not required for the load.
• Long life
• High-speed response

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B. PRECAUTIONS FOR PROPER USE
Influence of extraneous light
Intense light or light from inverter fluorescent lamps may affect the sensor operation. In any ambient light situation that affect the proper operation of sensor, the following solutions are necessary to prevent it. The maximum ambient light intensity that does not cause sensor malfunction
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SENSITIVITY ADJUSTMENT
As the ambient light getting intense or darker turn the sensitivity trimmer clockwise or anti-clockwise according to your needs.
OTHER PRECAUTIONS
• The setting distance must be equal to or less than the specified sensing range.
• In a dirty or dusty environment, operation of sensor may affect. If the lens surface is covered with dust or dirt and light transmission is obstructed, detection may not be possible.
 
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• Verify that the supply voltage variation is within the rating.
• Take care that the sensor does not come in direct contact with water, oil, grease or organic solvents, such as, thinner, etc.

OPS-401 Photoelectric Sensor Technical Specifications
ModelOPS-401
TypeLaser Sensor
ControlPLC, IOT Devices, Logic Circuits
Minimum Sensing Object1cm
Sensing Range20m
Temperature Range-10°C 50°C
Detection TypeOptical Non-contact
Supply Voltage5 V DC, 220 V AC, 24 V DC

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