Lampert Werktechnik GmbH
OPERATING MANUAL PUK D5
6.13 Smoothing mode
Smoothing mode can be activated or deactivated by pressing on the symbol at the top left in the display.
This function can only be activated in the start menu. This enables a faster welding cycle, e.g. to smooth
surfaces or for increased heat transfer (e.g. to reduce the conductivity of silver alloys). The welding device
independently triggers three times here. If the user switches to a different user level, smoothing mode must be
reactivated if required.
6.14 Foot switch
With the welding device switched off, connect the foot switch plug to the socket marked with the blue foot
switch symbol on the rear of the device. The device is then switched on. Pressing the multifunctional controller
or touching the display confirms the safety information and the device is ready for operation.
The foot switch can be activated by pressing and holding it. The message "Foot switch activated” is shown on
the display and the blue foot switch symbol at the top right of the display.
A bare metallic point of the workpiece is connected with a contact clamp. The workpiece and electrode are
then guided together. The contact is indicated by a periodically alternating opening and closing of the eye
protection system. The foot switch is now ready to perform the welding process.
The foot switch can be deactivated again by pressing and holding it (without workpiece contact). The blue foot
switch symbol in the display goes out.
6.15 Help function
The buttons at the bottom edge of the display are supported in all user levels with a help function. Pressing
and holding the button causes the info window to appear for the respective button, which displays explanatory
information for the button function. Pressing on the display again results in the program returning to the active
user level.
7. Basic information about the effects of power and pulse duration
7.1 Power
The size and intensity of the welding points are controlled by the power, i.e. the higher the power the larger
the welding point. With very thin materials an excessive power level can also quickly result in damage.
It makes sense for “PUK beginners” to experiment in order to find the optimum power level, starting with
a power of 20% or with very fine welding, even lower. Power settings between 35% and 50% are considered
medium welding powers. Most dental alloys can be welded with higher power levels, just as with stainless
steel. A power level above 70% is only practical in exceptional circumstances. There is a danger of
inhomogeneous welds and only experienced users should move outside this range.
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