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7. Adjustment
7.1 Ammeter Adjustment
The ammeter knob can be used as a master control for the laser’s power settings. When it is set to
anything other than 100%, it reduces the engraving software or control panel’s power settings by a
proportionate amount.
For example, when the ammeter knob is set straight up at
50% and the design instructs the laser to cut a line at 20%
power, the laser will actually fire at 10%. As such, the knob
can be used to ensure that your laser alignment and other
tests are done at low safe power levels and can also be turned
completely down to 0% when making adjustments in the
main bay.
General use is not recommended. It is safer to fully deactivate your laser tube during adjustments
in the main bay. Familiarize yourself with your software and control system’s methods of power
adjustment and use those for most purposes. This will ensure you always have full understanding
and full control of your laser’s power level. Generally, use the ammeter knob as another layer of
redundancy during setup and shutdown, helping you avoid any potential accidental firing of the
laser.
7.2 Water Chiller Adjustment
Your water chiller should arrive NOT prefilled but properly configured to work
without adjustment.
ALWAYS make sure the chiller has been filled to NORMAL with the correct laser-
safe anti-freeze or distilled water.
The default setting is to try to keep the laser-safe antifreeze within 3.6
℉
(
±
2
℃
) of 77
℉
(25
℃
) at
all times and to stop work if the water reaches 104
℉
(40
℃
), which should safely handle standard
cutting and engraving. An alarm also sounds if the water temperature falls to 50
℉
(10
℃
), preventing
use in freezing conditions.
During normal use, the upper display will tell you the current temperature of the cooling water and
the lower display will tell you the current target temperature. Both are given in degrees Celsius.
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