Safety features provided with the lb-70 series – KEYENCE LB-70(W) Series User Manual

Page 4

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SAFETY PRECAUTIONS ON LASER PRODUCT

4. Safety consideration

Use of controls or adjustments or the performance of procedures other
than those specified herein may result in hazardous radiation exposure.

Class IIIb/3R Laser Products

WARNING

Follow the instructions mentioned in this manual. Otherwise, injury to the
human body (eyes and skin) may result.

• Do not directly look at or touch the laser beam and its reflection from a

mirror-like surface.

• Do not direct the beam at other people or into areas where other people

unconnected with the laser work might be present.

• Be careful of the path of the laser beam. Make the laser path as short as

possible and be sure to terminate the laser path with a diffusion
reflector or diffusion absorber with proper reflectance and thermal
characteristics so that the laser beam does not diffuse. (It is recom-
mended that you install a protective enclosure.)

• Install the laser product carefully so that the laser beam is not uninten-

tionally directed at mirror-like surfaces.

• Install the products so that the path of the laser beam is not as the same

height as that of human eye.

• Wear protective eye goggles appropriate for the laser beam wavelength.
• Do not disassemble this product. Laser emission from this product is

not automatically stopped when it is disassembled.

• Clean the aperture regularly. In addition, stop the emission of the laser

beam when cleaning.

Class 1 Laser Product

WARNING

Follow the instructions mentioned in this manual. Otherwise, injury to the
human body (eyes and skin) may result.

• Do not stare into the beam.
• Do not disassemble this product. Laser emission from this

product is not automatically stopped when it is disassembled.

CAUTION

5. Safety features provided with the LB-70

series.

The LB-70 series is provided with the following safety features. Make
sure these features function correctly before operating.

1. Laser radiation emission warning

A visible LED informs you that the laser beam is being emitted, or is
about to be emitted, at least 3 second after power is provided to the
controller and the sensor head.

2. Laser emission delay

Laser emission only starts after the LED has been ON for at least 3
seconds, thus decreasing the possibility of laser exposure.

3. Laser emission stop input terminals

Terminals for controlling laser emission are provided on the controller.
You can remotely control laser emission using these terminals.

4. Key-operated switch

Set to the ON position to supply power. You can lock the power
switch using the supplied key; the key can be removed only when the
switch is set to the OFF position.

5. Beam attenuator

A laser beam shield is supplied. This cover is to be attached to the
laser-beam-emitting portion of the sensor head. If an operator must
work in front of the sensor head and there is risk to the eyes from the
laser beam, be sure to attach this cover.

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