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74
SECTI
ON 4
4-4 La
ser P
ro
d
u
c
t Clas
sification
s
Z500
Setup Manual
SECTION 4
Appendix
JIS C6802 "Radiation Safety Standards for Laser Products"
With respect to the requirements of remote interlock connector, key control, emission
warning and attenuator, Class 3B laser products not exceeding five times the AEL of Class
2 in the wavelength range of 400 to 700 nm are to be treated as Class 3A laser products.
Note:
This table is intended to provide a convenient summary of requirements. See text of
standard for complete requirements.
Requirements;
Sub-clause
Classification
Class 1
Class 2
Class 3A
Class 3B
Class 4
Description of
hazard class
Safe inherently
by engineering
design
Low power; eye
protection nor-
mally afforded by
aversion
responses
Same as Class
2. Direct intra-
beam viewing
with optical aids
may be hazard-
ous
Direct intrabeam
viewing may be
hazardous
High power; dif-
fused reflection
may be hazard-
ous
Protective housing
Required for each laser product; limits access necessary for performance of functions of the
products
Safety interlock in
protective housing
Designed to prevent removal of the panel until accessible emission values are below the AEL
for the class assigned
Remote control
Not required
Permits easy addition of external
interlock in laser installation
Key control
Not required
Laser inoperative when key is
removed
Emission warning
device
Not required
Give audible or visible warning
when laser is switched on or if
capacitor bank of pulsed laser is
being charged
Attenuator
Not required
Give means beside On/Off switch to
temporarily block beam
Location controls
Not required
Controls located so adjustment does not require expo-
sure to AEL above class 1 or 2
Viewing optics
Emission from all viewing systems must be below Class 1 AEL's as applicable
Scanning
Scan failure shall not cause product to exceed its classification
Class label
Required word-
ing
Warning and explanatory labels and specified wording (Refer to page 16)
Aperture label
Not required
Specified wording required
Service entry label
Required as appropriate to the class of accessible radiation
Override interlock
label
Required under certain conditions as appropriate to the class of laser used
User information
Operation manuals must contain instructions for safe use
Purchasing and
service informa-
tion
Promotion brochures must reproduce classification labels; service manuals must contain
safety information
Additional
requirements for
laser optical fibre
transmission sys-
tem
Cable service connections require tool to disconnect if disconnection breaks protective hous-
ing and permits access above Class 1