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Laser Safety
The safety of a laser apparatus is defined by one of five safety classes: I (1),II (2),
IIIa (3a), IIIb (3b) and IV (4). The Speedy without laser pointer is in the EU safety
class 1 (with an installed laser pointer laser class 2) and therefore presents no
hazard to personnel when properly used during normal operation or routine
maintanance. In the US all machines are classified as classII laser products. This
status is guaranteed by the safety housing and safety devices that are built into the
product.
Please be aware that improper operation of the laser apparatus nullifies this safety
class and allows under certain circumstances the emission of radiation which can be
potentially dangerous.
This laser engraving system contains a carbon dioxide (CO 2 )-laser class IV (4)
product, which emits an intensive and invisible radiation. Without safety devices
the direct radiation and also diffuse reflected radiation is dangerous.
Please be aware
US laser classes
As posted by the Center for Devices and Radiological Health (CDRH) regulation 21 CFR 1040.10
and 21 CFR 1040.11, the standard classification for lasers are as follows:
Class I laser product
No known biological hazard. The light is shielded from any possible viewing by a person and the
laser system is interlocked to prevent the laser from being on when exposed. (large laser printers
such as the DEC LPS-40 has a 10mW HeNe driving it which is a Class IIIb laser, but the printer is
interlocked so as to prevent any contact with the exposed laser beam, hence the device produces
no known biological hazard, even though the actual laser is Class IIIb. This would also apply to CD
players and small laser printers, as they are Class I devices).
Class II laser products
Power up to 1 milliwatt. These lasers are not considered a optically dangerous device as the eye
reflex will prevent any occular damage. (I.E. when the eye is hit with a bright light, the eye lid will
automatically blink or the person will turn thier head so as to remove the bright light. This is called
the reflex action or time. Class II lasers won't cause eye damage in this time period. Still, one
wouldn't want to look at it for an extended period of time.) Caution labels (yellow) should be placed
on the laser equipment. No known skin exposure hazard exist and no fire hazard exist.
Class IIIa laser products
Power output between 1 milliwatt and 5 milliwatt. These lasers can produce spot blindness under
the right conditions and other possible eye injuries. Products that have a Class IIIa laser should
have a laser emission indicator to tell when the laser is in operation. They should also have a
NORMAL.DOT
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:
The Laser Radiation of a CO
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T H E U L T I M A T E M A R K I N G S O L U T I O N
Laser is Invisible!
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