Ambrell EasyHeat 0112, Техническое руководство

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How Your E
ASY
H
EAT
Works
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801-9309.doc
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The E
ASY
H
EAT
heat stations contain one or more water cooled capacitors, rated for
current under laboratory (rather than real-world) conditions. The E
ASY
H
EAT
systems
make use of Smartburst technology which allows users to approach these higher current
limits in actual use under many real world conditions while maintaining the safety
margins required for long operating life.
Smartburst considers both thermal time constants and self-heating in the capacitors to
allow higher currents out of the heat station as long as the average value is safe, and if the
continuous on time is within limits for the levels in use. Beyond these limits,
CAP TEMP PROTECT and
REDUCE OUTPUT
messages are displayed on the status page, and levels are brought to a safe value.
The following chart illustrates operation for a capacitor with a laboratory current rating of
750A. When the limit becomes active, coil current is held with a ceiling of about 80% of
the laboratory value (
≅ 600A).
Continuous Heat Time vs Coil RF current
0
150
300
450
600
750
900
600 650 700 750
Current (A)
T
im
e
(
s
)