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In addition to these alarms, the chiller will also sound or cause alarms when the water is outside its
correct operating range, when the water level is low, or when air bubbles are present in the line. See
§
7.2 for details. Also note that the chiller needs good ventilation for proper functioning, including at
least 5 feet (1.5 m) of unobstructed space in front of its cooling fans.
8.6 Parts Replacement
This engraver should not be modified or disassembled by anyone except trained and licensed
professionals, but some consumable parts may require replacement after prolonged use. Contact
your vendor or our technicians if you have any questions about fitment or installation. Using
incompatible components is highly dangerous and waives all the manufacturer’s liability for any
damage or injury caused.
ALWAYS completely disconnect the engraver from its power supply before
replacing any parts.
Take special care when replacing the laser tube or its power supply, as both have extremely high
voltage connections. If you replace the power supply with an identical model, you will be able to
use the same screw terminal blocks as a unit. If you change to a different power supply, refer to the
following diagram to move the wires to the correct placement on the new unit. The high-voltage
anode wire should be
FG: Main ground connection
AC1: Neutral wire to the main power connection
AC2: Live wire to the main power connection
H: Live wire to receive active high-voltage firing commands
L: Live wire to receive active low-voltage firing commands
P: Live wire(s) to the water sensor etc.
G: Neutral wire(s) to the water sensor, PWM level shifters, etc.
IN: Live wire(s) to receive PWM and other power adjustment
commands
5V: 5V DC connection(s) to power PWM level shifters,
potentiometers, etc.
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