GSI Group - Laser Division
JK300HP/JK300P/JK125P
Pre-installation and User Manual
Issue 2.0
Page 24 of 172
Part No: 1EA300E01
The JK300HP/JK300P/JK125P Series Laser is a Class 4 Laser System. All operators
using this Laser equipment must be officially trained and authorised.
In North America, the Center for Devices and Radiological Health, a division of the FDA,
regulates the classification of Laser Products and uses Federal Regulation 21 CFR
Chapter J 1040.10.
This regulation defines Laser Products as Class I to Class IV.
The classifications and risks for 21 CFR Chapter J 1040.10 are defined in the following table.
Class Risk
Description
Class I
No risk to
eyes.
No risk to
skin
Class I Laser Products are considered to be incapable of producing
damaging radiation levels and are determined to be eye safe. These
Lasers are exempt from most control measures. Class I Laser Products
also include embedded products that totally enclose a higher Class of
Laser e.g. CD players, laser printers and most industrial laser processing
machines.
Class IIa
Low risk to
eyes.
No risk to
skin
Class IIa Laser Products are those emitting visible light for which the
natural aversion response to bright light (including the blink reflex)
prevents retinal injury. These lasers are not intended for viewing but are
not hazardous if viewed for less than 1000 seconds. An example is a
Supermarket Bar Code Scanner.
Class II
Low risk to
eyes.
No risk to
skin
Output Power less than 1mW.
Class II Laser Products are those emitting visible light for which the
natural aversion response to bright light (including the blink reflex)
prevents retinal injury. This includes direct viewing of the laser beam with
optics that could concentrate the laser output into the eye. These lasers
do present a dazzle hazard and appear uncomfortably bright when
viewed directly but should not cause harm if viewed for less than 0.25
seconds.
Class IIIa
Low risk to
eyes.
Low risk to
skin
Output Power up to 5mW.
The risk of injury for direct viewing of a Class IIIa laser beam remains low
unless viewed with optics that could concentrate the laser output into the
eye.
Class IIIb
Medium
risk to
eyes.
Low risk to
skin
Output Power 5mW to 500mW.
Direct exposure of the eye to the laser beam is hazardous. Scattered
laser light is usually safe, for example diffuse reflections from a matt
surface. However, viewing of specular reflections can be hazardous, e.g.
from a mirror surface. The higher power Class IIIb lasers are also a skin
hazard. The Class IIIb laser is not normally a fire hazard.
Class IV
High risk
to eyes.
High risk
to skin
Output Power exceeds 500mW.
Class IV Laser Products are those to which direct exposure of the eye
and skin is hazardous and scattered laser light may be hazardous to the
eyes. Such lasers are also a fire hazard and their use requires extreme
caution.
The JK300HP/JK300P/JK125P Series Laser is a Class IV Laser System. All operators
using this Laser equipment must be officially trained and authorised.
Petitioners Canadian Solar Inc. and Canadian Solar (USA) Inc.
Ex. 1025, p. 24
