1.SAFETY FOR LASER HANDLING B-70315EN/02
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1.8 HIGH-PRESSURE GAS
Do not allow any dangerous or high-pressure gas to get into the
oscillator housing. The oscillator cabinet has a hermetic structure
(dustproof and drip-proof), it cannot be ventilated easily.
Flammable gases such as oxygen can cause a fire or explosion.
Toxic gases can harm operators during maintenance. Organic gases
can degrade machining performance. High-pressure gases can damage
a panel or the cabinet, resulting in injury from flying matters.
If such a gas accidentally gets into the oscillator housing, remove a
panel for ventilation. The installation room must be also well
ventilated.
To purge the oscillator housing, use purified low-pressure air or
nitrogen.
1.9 KEY CONTROL
All the laser products have to comply with the various kinds of laser
safety regulations, which include the use of key control. For instance,
FDA PART 1040 PERFORMANCE STANDARDS FOR
LIGHT-EMITTING PRODUCTS, Sec 1040. 10 (f), (4) states: "Each
laser system classified as a Class IIIb or IV laser product shall
incorporate a key-actuated master control. The key shall be removable
and the laser shall not be operable when the key is removed" and
EN60825-1:1994, 4.5 Key control state "Any laser system belonging
to one of the following classes shall incorporate a key operation
master control: Class 4 and Class 3B, except for Class 3B with not
more than five times the AEL of Class 2 in the wavelength range from
400 nm to 700 nm. The key shall be removable and the laser radiation
shall not be accessible when the key is removed."
Because the laser package products offered by FANUC cannot
produce the laser beam as they are in the state of shipment, the system
integrator who incorporates FANUC products into the system, which
generates the laser beam, is obliged to incorporate the master key as
defined by the relevant regulation.