getting started
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SYNRAD FH Series Flyer Operator’s Manual Version 3.4
Cooling
If you are currently cooling your FH Series Index or Tracker marking head, you should continue to cool FH
Flyer in the same manner. However, please note that Flyer’s heat load is concentrated on the front end of
the head—at the nned heat sink end instead of the L-bracket (input) end.
You must add external cooling if the following conditions exist: (1) the front heat sink has less than 1.0"
(25.4 mm) of free air space between the head and any enclosure or surface, or (2) the head is oriented such
that the front heat sink is pointing downward or in any other non-standard orientation, or (3) the calcu-
lated optical scanner temperatures are higher than 50 °C (see Appendix A).
Note: Appendix A contains a detailed discussion on factors that inuence head temperature and an
equation to calculate an approximate internal temperature for your marking situation. This sec-
tion also provides information about mounting an external cooling fan or cooling ductwork to
Flyer’s heat sink.
You can monitor Flyer head temperature in real-time during operation in your facility. To do this, click the
Help menu in WinMark Pro, and then click About Synrad WinMark… . The About Synrad WinMark…
dialog box displays internal air temperature near power amplier and CPU components along with a color-
coded Status indicator. If the Status indicator turns from green to yellow (indicating air temperatures at or
above 65 °C near the power ampliers), then you should consider adding an external cooling fan. FH Flyer
will stop marking—when the Status indicator turns from yellow to red—if ambient air temperature reaches
65 °C (measured near the CPU). If this happens, marking will halt and you must cool the head. Marking is
not enabled until ambient CPU air temperature drops below 60 °C.
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