Scanners 101

Understanding Safety Laser Scanners

What is the technology?

afety laser scanners use time-of-flight technology.
Meaning, the scanner calculates position based on the time it takes for the laser to bounce off an object and return to the unit.

A customized protection zone is possible with a safety scanner.
KEYENCE safety scanners can scan up to 190˚ and have a protection range up to 8.4m (27.56').

Everythng needed is built-in to the unit which is about the size of a coffee can.
The innovative time-of-flight technology elimintates the need for other components.

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What are benefits of a safety scanner?

Safety scanners are widely used because of their versatility. Scanners can be mounted vertically or horizontally and cover several types of hazards. These devices offer distinct advantages over conventional guarding options.

Area Protection

Safety scanners prevent hazards from operating when an unintended object or person is in a dangerous area.
Unlike safety mats, safety scanners can be unobtrusively mounted to avoid damage or potential impact, while still protecting complex shaped areas.

Access Prevention

Scanners allows for vertical mounting to detect any undesirable entrances into a hazardous area.
This is ideal in locations where it would be too difficult to effectively mount light curtains.

AGC/AGV

A safety laser scanner can be mounted on an automated guide vehicle or transfer cart to eliminate the risk of collisions with objects or people in its path.
The ability of KEYENCE safety scanners help to ensure proper operation without danger or unnecessary stoppage.

Where are scanners commonly used? - Examples -

Robotic Cell or Palletizer Guarding

Prevent robot from operating while operator is in hazardous area.

Unwind/Rewind Protection

Multiple zones configured to reduce speed or completely stop process.

Collison Prevention

Long range provides ability to slow/stop crane and also send alarm to operator.

Weld Cell or Press Guarding

Simultaneous monitoring of two zones with single scanner.

For details, see the catalogue

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