3.5 Place of use
Use of the power unit NOMARK 65/99 is restricted to closed industrial
and commercial rooms.
When using the system in residential and business environments
the operator must take special measures to ensure that the electromagnetic
fields arising during welding do not represent a danger to people and property.
Danger:
• Caution! Danger to life! Wearers of cardiac pacemakers must
keep clear of the vicinity of stud welding systems.
• The electromagnetic fields arising during welding can disrupt or
damage other electrical or electronic equipment. For this reason a
minimum distance of 10 m must be kept between the welding system
and other electrical and electronic equipment.
• Do not operate the power unit in the vicinity of data storage media.
Their contents may be deleted.
• Use of the power unit in rooms where there is a danger of fire or
explosions or in damp rooms is strictly forbidden.
• Solvents containing chlorine must be removed from the welding
area. They may not be exposed to the arcs of the welding system.
3.6 Erection
Place the power unit on a horizontal, vibration-free and non-slip surface.
The bearing strength of the surface must be at least twice
the weight of the power unit.
Due to the design and power of the NOMARK 65/99, thermal stresses occur
in the housing. These temperatures are reduced by a fan.
Make sure the air inlet is always kept free.
To keep the temperature level low, the fan is switched on at a device
temperature of 60°C.
To ensure unhindered heat exchange with the surroundings, the
power unit must be kept at least 1 m away from other sources of heat.
3.7 Power connection
The power cable with plug is located at the back of the unit.
The following mains ratings must be observed:
• Mains voltage: 230V (factory setting)
• Mains frequency: 50Hz (factory setting)
• Mains fuse: min. 10A (slow-blow)
The control voltage for all welding gun functions is supplied by the
power unit.
Note: If the standard factory setting of 230 V/ 50 Hz is to be
changed to 115 V/60 Hz, you must contact TWS.
Warning: Switch off the power unit and pull out the mains plug
before opening.
The following safety precautions must be taken before the power
unit is connected to the mains power supply:
• Only use mains power sockets with tested protective conductor
function. This test must be performed by an electrician.
• Compare the values of the mains power supply with the specifications
on the rating plate. If they do not correspond, consult an
electrician to take appropriate steps (see above).
When the above precautions have been taken, the power unit can
be connected to the mains power supply.
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