Distributor of Desco: Excellent Integrated System Limited
Datasheet of 60480 - EMITTER BOARD O'HD IONIZER PAIR
Contact us: [email protected] Website: www.integrated-circuit.com
•
OFF/SET/LOCK
key switch - this switch controls the
power to the ionizer. When the SET position is
selected, it allows the balance and fan speed to be
adjusted. When the LOCK position is selected, a
LOCK indicator is illuminated on the front panel of
the ionizer. In this position, the balance and fan
speed controls are disabled and the key is
removable. In the OFF position, power is shut off to
the ionizer and the key is removable.
•
FAN
speed adjustment switches are used to set
the fan speed to the desired level that provides
the best performance while minimizing operator
discomfort. With the key switch in the SET
position, pressing and holding the + symbol will
increase fan speed, and the - symbol will decrease
fan speed. Relative fan speed is displayed on the
front panel indicator.
•
BAL
controls are used to adjust the balance of
the ionizer and are used in conjunction with a
charged plate analyzer. Pressing the “+” symbol will
shift the balance offset positive, while pressing the “-”
symbol will shift it negative. Adjustment should be
made with a charged plate analyzer located 24"
directly under the ionizer. The BAL controls, like the
FAN speed, are only adjustable when the key switch
is in the SET position.
•
I/O PORT
serves a dual purpose. It accepts
signals from the optional Auto Calibration Unit and
automatically calibrates the ionizer when the key
switch is in the SET position. It also outputs ionizer
status signals that can be useful for remote
monitoring.
•
IEC INPUT CONNECTOR
based on the
International IEC 60320 Standard, allows the power
to be disconnected at the ionizer and provides a
fuse drawer for a 5mmx20mm fuse. The fuse drawer
may be opened when the cordset is removed. In
addition, an IEC Outlet on the opposite end of the
ionizer can supply power for a charged plate
analyzer, or for daisy-chaining a second unit.
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Front Panel Display and
Controls
See figure 3.
System Status
is the information center on the front of
the ionizer. From it, the operator can easily check the
operational status of the ionizer.
•
PWR
- this indicator will normally be green when the
ionizer is operating correctly. When the autobalance
circuit can no longer adjust for dirty emitter pins, this
indicator will turn red and begin to flash. It is normal
for it to flash for a few seconds each time the ionizer
is turned on. This indicator will be on when the key
switch is either in the "SET" or "LOCK" position.
•
LOCK
- when the key switch on the end of the
ionizer is set to lock, this indicator will display a
distinctive blue light. This makes it readily apparent
that the ionizer has its settings locked, preventing
unauthorized adjustment.
•
AIRFLOW
- this display indicates relative airflow
output from the fans. If the key switch is in the
"SET" position and the "+" or "-" button are pressed
and held, the fan speed will increase or decrease
with a corresponding change in the AIRFLOW
display. As fan speed is increased, the display will
move to the right.
• MINOR ADJUSTMENTS ACCESS
(see figure 4).
Each fan zone may be balanced separately. The
adjustments are designed for minor corrections to
balance one fan to another. Overall balance
adjustments should be done with the "BAL" switches
on the end panel.
•
VR6, VR5, VR2, and VR1
- are the zone balance
adjustments for the zones 1 through 4 respectively.
Zone 1 is closest to the right end. 24" models will
only have VR6 and VR5 adjustments. These
adjustments are covered in the section titled
"Calibration Instructions".
Figure 3. Front panel display and controls
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449
DESCO EAST
- 90 Hudson Road, Canton, MA 02021 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: http://www.desco.com
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