9
To fine tune the flow rate to the correct amount
2
litres per minute, please see part 5 of
these instructions below.
The maximum operating pressure is 4 bar!
Please note!
The PUK U3 will only work when hooked up to a supply of
inert gas and only when the machine receives sufficient gas
pressure.
If inert gas is not hooked up, not flowing or if the pressure
is too low, the display will show the following reading: “Gas
error! Please check the gas pressure”.
Connecting the power supply:
Insert the mains power cable into I.E.C power connector (12), and
insert the plug into the mains power socket.
Switch the mains power switch (11) to “ON”. The display will show
the following
important safety warning “Warning! Protect your
eyes! Read the manual Follow the advice!”
.
Confirm the compliance with these safety instructions, by pressing
any button. Following this, the machine will run a self-test.
Please note!
Please also follow the guidelines given in the operating
instructions of the attached welding microscope “USM”!
Caution!
As soon as the mains power switch of your PUK U3 is
switched to “ON”, the terminal clamp (i.e. crocodile clip) and
cables receive electrical current. Please see to it that these
items cannot come into contact with any electrically
conducting or earthed materials. For the user / operator there
is no danger, but unwanted operating errors can occur.
4-5 CHANGING LANGUAGE DISPLAYED:
Languages available: ENGLISH – ITALIAN – SPANISH –FRENCH - GERMAN
The machine can be changed from English, to run in any of the 4 other languages
mentioned above.
Switch the machine on and confirm the safety notice displayed, so that the device starts
and is ready for work.
Now, press both the „Mode“ button (2) and the rotary-knob „Power“ (4), holding
them pressed for 2 seconds.
The language setting has now been changed to the next language in sequence. By re-
peating this process, the various languages available can be selected one after the other.
