SECTION 1 Description
The Centurion single-fan DC ionizer eliminates electrostatic charges cleanly, quickly
and reliably in cleanroom workstation applications where electrostatic discharge (ESD)
is a concern. The Centurion is designed for applications where even very low levels of
static charge can damage sensitive components.
The Centurion produces ionized air with balanced ion content. The ion offset voltage is
continuously monitored and corrected through the combination of a unique emitter array
design and control circuit. Directing the airflow onto an object or work surface will
eliminate existing static charges and prevent the formation of additional charge.
Charged objects attract charge of the neutralizing polarity from the ion-rich air stream.
The Centurion includes a fan speed control used to tailor the amount of air delivered to
the work surface. Internal to the unit, air flows past the components used to generate air
ions. The ion emitter design of the Centurion is patented and provides superior delivery
of ions to the air stream through the use of 8 emitters and a unique geometry which
controls airflow over the emitters. The design also aids the closed loop feedback control
of offset voltage. Adjustments made to the output of the emitter array are seen promptly
as ion output changes in the air. The resulting balanced stream of ionized air is
delivered to the work area to provide static neutralization.
Ion balance is maintained with a high-gain dual feedback circuit. This circuit, combined
with the unit’s patented emitter array design, offer superior offset voltage performance.
With regular maintenance, using the unit’s integrated cleaning brush, the unit is capable
of +/-3V performance. If the unit becomes unable to track its set point or some other
failure condition occurs the built-in monitoring circuit indicates the fault condition.
Specially selected components insure cleanliness of the Centurion’s output air to meet or
exceed Class 10 particle limits. All fans feature a specially designed bearing system and
use silicone-free lubricants. All other air bearing surfaces in the ionizer are manufactured
free of silicones. Fan assemblies are run-in and particle-tested to Class 10 (209E; ISO
Class 4) particle limits. The Centurion’s final assembly, final test, and packaging take
place in a Class 100 cleanroom. Great lengths have been taken in design and fabrication
of this unit to minimize the risk of any form of contamination.
SECTION 2 Features
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+/-3V offset voltage
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Class 10 cleanroom compatible
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Patented 8-pin emitter design
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Rapidly neutralizes static charge
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Integrated emitter cleaning brush
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Rugged and aesthetic enclosure
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