Grounding Requirements
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!
Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is nec-
essary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Check with a qualified electrician or service per-
sonnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, discon-
nect it from power, and immediately replace it with
a new one.
Extension Cords
We do not recommend using an extension cord
with this machine. If you must use an extension
cord, only use it if absolutely necessary and only
on a temporary basis.
Extension cords cause voltage drop, which can
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
Serious injury could occur if you connect
machine to power before completing setup
process. DO NOT connect to power until
instructed later in this manual.
Choose a location where the physical earth
ground can be made with an anti-static
grounding rod (not included) for communi-
cation and digital equipment.
Figure 10. Earth ground post location (G0913/
G0914 shown).
Model G0911–G0914 (Mfd. Since 05/21)
-17-
G0911–G0914 Requirements
Minimum Gauge Size ............................. 14 AWG
Maximum Length (Shorter is Better) ........... 50 ft.
Water Chiller/Extraction Fan Requirements
Minimum Gauge Size ............................. 14 AWG
Maximum Length (Shorter is Better) ........... 50 ft.
Air Pump Requirements
Minimum Gauge Size .............................16 AWG
Maximum Length (Shorter is Better) ........... 50 ft.
Laser machines generate strong electrical fields
that can charge the machine housing with micro
voltages. These voltages must be allowed to dis-
sipate through a separate, physical earth ground
connection (see
Figure 10) than what is provided
by the power cord.
Resistance to ground of a single-made electrode
is
25 Ohms or less. Refer to an electrician for
guidance and testing, if required.
Summary of Contents for G0911
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