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Menace of Electrication
Elimination Mechanism
 High frequency type
 High frequency type
AC type
Applied voltage type
DC type
Pulsed DC type

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Home > Menace and Elimination > High frequency type
Menace of Electrication
High frequency type
  Being one of the newest applied voltage systems, the Z-series devices generate waves at a higher frequency (approx. 70 kHz) than the normal frequency type, sending high voltage to their ionized pins and producing corona discharges. In this way, it creates a large amount of well-balanced positive and negative ions, which allow a high level static elimination. The ions transferred through tubes make it possible to eliminate static in spots where it is difficult to eliminate it by other methods (normal frequency discharges and direct current type). Furthermore, it also allows avoiding the damage to semiconductor devices, caused by the electric field originated in the ionized pin.
  Normal frequency type devices are usually big and heavy, due to their coil transformers. In contrast, high frequency type devices are constructed as a flat board with built-in elements, and they are compact and light. It is easy to slip them into the narrow spaces between semiconductor equipment, and therefore they can be widely utilized.
Normal Frequency Type
High Frequency Type
Number of discharges
50/60Hz
20 - 80kHz
Normal Frequency Type
High Frequency Type
Applied voltage
5 - 8kV
2 - 4kV
continued application
Charge generated
One ionized pin generates positive and negative charges alternately
Size / weight
Medium, heavy
Small, light
High voltage conductor
Necessary
Not necessary:
internal power supply
Elimination Ability
Long distance
Good
Short distance
Outstanding
High speed response
No (possible using several pins)
Good
Electric charge delivery through tubes
No
Outstanding
Proximity of charged objects
Close proximity not possible
Close proximity possible
Level of charge balance
Good
(for the high frequency type, less variation over time is observed because of the larger number of waves)
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