Lincoln Electric DEMO ZONE IM709 - Manual (Page 9)

A-2 INSTALLATION
DEMO ZONE
A-2
SAFETY PRECAUTIONS
INPUT AND GROUNDING CONNECTIONS
INPUT POWER
The Demo Zone is designed to operate from 230 volt,
60 Hz single-phase input power with 40-amp capacity.
A 6-50R type receptacle must be provided by the
user. The receptacle must be installed by a qualified
person and must be in accordance with applicable
local and national electrical codes.
The lighting system requires 120 volt 60 Hz power.
Plug the line cord into a conventional 120 volt recepta-
cle for lighting operation. The lighting system is for
display and convenience purposes.
The Input Plugs for the Demo Zone are connected at the
factory.
GROUNDING
When the Demo Zone is connected to a conventional
power distribution system, the frame of the Demo
Zone must be grounded. The input cable provided
with the Demo Zone contains a grounding conductor.
Additionally, another ground lead must be connected.
Connect the frame of the Demo Zone to a good elec-
trical ground using the #1 AWG lead included with the
Demo Zone. The purpose of this additional ground is
to minimize disturbance of the high frequency unit and
to provide a path for stray welding currents.
Some applications may not use conventional input
power and instead utilize the generating capability of
the Ranger 250 for power. In this case, the ground
lead is required only if the high frequency unit of the
Square Wave TIG 175 is used.
OUTPUT CABLES AND
CONNECTIONS
ELECTRODE AND WORK CABLE CON-
NECTIONS
The Demo Zone is supplied with the output cables
connected at the power sources for positive electrode
polarity. To change the polarity of a power source,
switch the cables at the output terminals of the power
source, or change the power source polarity switch as
applicable.
A bolted work lead runs from the work buss connec-
tion of the Demo Zone to the work table. The work
table connection must be firm and secure.
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the
circuit breaker or fuse box
before working on this
equipment.
• Do not touch electrically hot
parts.
• Always connect the Demo Zone to a power
supply grounded per the National Electrical
Code and any local codes.
• This demonstration rack is intended for
indoor use and display only.
• Shelter or protect from rain, moisture and
condensation.
• Do not operate electric equipment when
wet.
WARNING
CYLINDERS could explode
if damaged.
• Keep cylinders upr ight and
secured to a support.
• Keep cylinders away from areas
where they could be damaged.
• Never allow the electrodes or torches to touch
the cylinders.
• Keep cylinders away from live electrical circuits.
• Maximum inlet pressures must be observed.
CAUTION
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FALLING EQUIPMENT can cause
injury.
• Do not lift with gas cylinder in place.
• Do not trailer or transport over the
road
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ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or
vent exhaust outside
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