Effective and Efficient Ionization
The highest level of ionization in its class.
Advanced Features
in 3 Aspects
Three Technologies Supporting
Effective and Efficient Ionization
Technology 1
Ion Sensing and Variable-AC System
Applied voltage is varied.
Industry
First
An ion sensor installed on the
bottom of the Ionizer detects the
charge and ion balance.
The applied voltage is flexibly
controlled according to the ion
balance conditions to raise
ionization efficiency.
Technology 2
Micro Power Spraying (MPS) Structure
Wide Area
Ionizes areas wider than the
Ionizer itself.
Ionizer length
High-speed airflow is achieved by
minimizing the air nozzle
diameter. An optimal cone shape
is also employed for the inside of
the nozzle to further improve ion
dispersion. By using a special ring
guard shape to pull passive
(external) air into the active air
stream, the total airflow is
dramatically increased.
Ring guard
Passive air is
pulled in.
Ion generation
Ionizes a wide area
Active air
Short
Distance
Achieves the highest level
of short-distance
ionization in its class.
lInstallation distance: 50 mm
Ionization time (s)
5
4
3
2
1
0
-400
-300
-200
-100
0
100
200
300
400
Measurement conditions:
ZJ-BAS058
Frequency setting: 20 Hz
Air pressure: 0.3 Mpa
Charge plate monitor: 150 mm X 150 mm, 20 pF
Ionization time: ±1,000 V to ±100 V
Technology 3
Optimized Discharge Electrode Pitch Optimized Discharge Electrode Pitch
lZJ-BAS
A small amount of ion recombination.
0.1 s
Horizontal positioning (mm)
Long
Distance
Steady ionizing performance,
even over long distances.
l Installation distance: 1,500 mm
Ionization time (s)
50
40
30
20
10
0
-400
-300
-200
-100
0
100
200
300
400
Measurement conditions:
ZJ-BAS058
Frequency setting: 20 Hz
Air pressure 0.3 Mpa
Charge plate monitor: 150 mm X 150 mm, 20 pF
Ionization time: ±1,000 V to ±100 V
Setting the discharge electrodes at
a pitch that is 80 mm longer than in
our previous models achieves an
optimal layout that unifies ionizing
performance and reduces ion
recombination. This model ionizes
over long distances with or without
the use of an Air Purge Ionizer.
lPrevious Models
A large amount of ion
recombination.
The larger pitch causes
uneven ion discharge.
Wide
80 mm
Narrow
ALARM
4.0 s
Horizontal positioning (mm)
2
3
Linking
up to
A New Proposal for Effective and Efficient Ionization
7
Units
*
Uniform Ionization
Linked Ionizers cover a wide area without causing uneven ionization.
Long Ionizers are required to meet the needs of increasingly large liquid crystal glass panels.
Ionizers as long as two meters are not only difficult to transport and install,
but also pose difficulties in achieving uniform ionization.
The highly thorough ZJ-BAS Ionizer solves this problem by connecting Ionizers together.
*
For information on requirements for linking Ionizers,
contact your OMRON sales representative.
Two Forms of Uniform Ionization Achieved by Linking Function
Uniform
Airflow
The air supply ports on previous models were only on both ends, so the airflow was weak in the center of long
Ionizers. By connecting ZJ-BAS Ionizers together, air is supplied from the center part as well, thus achieving a
uniform airflow and eliminating uneven ion discharge at medium and long distances.
Technologies that Support Uniform Ionization
Technology 1
Supplying air with no pressure loss
By arranging discharge electrodes on both ends, the Ionizer can handle an area wider than the length of the Ionizer itself. This eliminates
dead zones even when linking Ionizers, and achieves uniform ionization.
The Ionization range is wider than the length
of the Ionizer itself.
No dead zones even without using a staggered arrangement.
Technology 2
lPrevious Model
Air supply
port
Airflow in the center
part is weak.
Ion Sensing and variable-AC system prevents ion recombination
Because the ZJ-BAS Ionizer uses a method in which the linked Ionizers operate using the same power supply, the positive and negative ion
generation timing between the Ionizers is synchronized. Also, the sensing and variable-AC system control the amount of ions while
synchronizing the Ionizers. This reduces ion recombination between the linked Ionizers, and achieves uniform ionization.
lIon Sensing and Variable-AC System
The amount of ions is adjusted even when a charge is detected,
so synchronization with matching polarity is maintained.
lAC System
If the synchronization of the timing is lost,
the polarity is reversed.
Ionizer A
Uniform
Ion Balance
For example, when both sides of a workpiece are charged, a long Ionizer will adjust the amount of ions
according to the entire Ionizer length, so an area that is not charged may take on a reverse charge. By using
linked ZJ-BAS Ionizers, each Ionizer senses the charge condition. Because only the Ionizers on both ends then
control their ion amounts in response to the charges, reverse charging does not occur.
Ionizer B
Ion recombination
Uniform Ionization
Positive charge
Positive charge
4
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