Specifications

Diamond™ GEM, G, & K, Integrator’s Guide
10
laser off. The beam attenuator must be available for use at all times
during operation. Power switches and key controls do not satisfy the
requirement for beam attenuator(s). The beam attenuator must be
separate from control or main power.
Operating Controls must be located so as to make exposure to radi-
ation unnecessary while the user is manipulating them.
View optics, Viewports or Display Screens may not provide human
access to radiation greater than the limits of Class I during operation
or maintenance.
Windows, microscopes on welders, drillers, surgical devices, view
ports and other such things are considered in this category. The
compliance of viewports and viewing optics can be complex,
requiring attenuation and other eye-safety measures. Consult the
standard for details and measurement requirements. You may also
need advice from welding safety or other technical expertise.
Manual Reset is required on all Class IV lasers manufactured after
August 20, 1986. It must prevent automatic restart after an interrup-
tion due to remote interlock activation or from an interruption of
more than 5 seconds due to unexpected loss of main electrical
power.
Labeling
Warning logotypes are required on all laser above Class I. For
infrared the warning must include the warnings for invisible, as well
as visible radiation. For a Class IV product, the labels which are
attached to the embedded laser are usually not sufficient for the
higher level product. The OEM must post new ones of their own, in
prominent, visible locations. An example of a Class IV logotype is
shown in Figure 1.
Removable or replaceable protective housing sections that are not
interlocked or are interlocked with defeatable interlock switches are
required to be labeled with a warning. Examples are shown in
Figure 2.
Aperture warning labels are required wherever radiation in excess of
Class I is emitted through an opening in the protective housing
during operation. Wording is specific; x-radiation, collateral and
invisible must be indicated if present; see the example in Figure 3.
Certification labels and Identification labels are frequently
combined on a single piece of material for simplicity. Certification
labels declare the product compliance (wording specified) and date
of manufacture; and I.D. labels name the manufacturer and plant
location. The month and year must be spelled out with no abbrevia-