TB-9007 Page 2 of 3 © 2015 DESCO INDUSTRIES, INC.
Employee Owned
SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com
Maintenance
Occasional cleaning of the case and of the emitter
points are the only routine maintenance procedures
required.
Cleaning the case
Wipe the case with a soft cloth moistened with water. If
a stronger cleaning solution is required, mild detergent
or alcohol may be used. Do not use solvents that will
attack the plastic case.
Cleaning the emitter points
MAKE SURE TO REMOVE ELECTRICAL POWER
FROM THE IONIZER. The emitter points are located
between the fan blades and the rear grill. A jet of clean,
compressed air can be used to remove dirt on emitter
points. If a more rigorous cleaning method is needed to
remove particulate, clean the points with a cotton swab.
Access to the points is available through the rear grill.
Be careful not to damage the points during cleaning.
Performance Verification
The SCS Benchtop Air Ionizer is factory adjusted to
provide optimum performance. Further adjustment in the
field is not possible. However, the following instructions
can be followed to determine whether the Ionizer is
performing to specifications. The testing follows the
procedure outlined in the standard for Ionization, ANSI/
ESD STM3.1. Please refer to this standard for more
complete information.
Equipment Needed
SCS 711 Charge Analyzer or equivalent charge plate
monitor (CPM). If an alternate CPM is used, please refer
to its Operating Manual for details on how to perform
the following instructions.
Static Discharge Time
The Ionizer will reduce the charge on the 6" x 6" square
isolated metal plate on the CPM from ± 1000V to ±
100V in less than 2 seconds (high fan speed). The
metal plate for the CPM must be located at a distance
of one foot (30 cm) from the ionizer and centered in the
air stream.
Attach the flat plate electrode to the Charge Analyzer.
Place the Charge Analyzer on its side allowing for
viewing of the display. Position the Charge Analyzer so
that the plate is parallel to the ionizer at a distance of
one foot. The plate of the Charge Analyzer should be
centered (up and down, left and right) in the air stream.
It may be necessary to raise the ionizer from the
surface to allow for centering on the Charge Analyzer
charge plate. If so, use a block of appropriate height
to elevate the Charge Analyzer. Please note that the
plate must be kept totally isolated from ground and that
the edge of the plate should be raised up a minimum
distance of 3 in. from the work surface. Reference ANSI/
ESD-STM3.1.
Turn on the ionizer at high speed and allow it to run for
five minutes.
Charge the plate positive as described in the Charge
Analyzer operating instructions for “Static Decay Time”
mode. Observe the discharge time indicated on the
Charge Analyzer. Repeat this step for negative polarity.
Ion Balance
The ionized air blower will stay within an offset voltage
of
+15 volts
(max. deviation from zero) at a distance of
one foot, when measured using the following procedure.
Position the ionizer and CPM as stated above.
Turn on the ionizer at high speed and allow it to run for
five minutes.
Use a ground wire to ground the charge plate of the
Charge Analyzer. This will remove any/all residual
charge present on the charge plate. If the CPM does not
zero, adjust the zero control.
Remove the ground wire and observe the display on the
Charge Analyzer. The voltage (either ±) observed during
this time is the “offset voltage” and is a measure of
instantaneous ion imbalances produced by the ionizer.
Specifications
Power Ratings 24VDC, 0.42A
through included universal
power transformer
Power Inlets
Mini DIN Socket
Power Transformer
Input: 100V–240VAC,
0.8A, 50/60 Hz into IEC320
Socket
Output: 24VDC, 1.0A
6' (1.8m) cord with Mini DIN
plug
Dimensions
(with mounting base)
8.5" W x 9" H x 4.5" D
(21.6 cm W x 22.9 cm H x
11.4 cm D)
Air Velocity**
low speed - 100 fpm
(0.5 m/s)
high speed - 300 fpm
(1.5 m/s)
Static Discharge Time*
@1 ft. (30 cm)
< 2 seconds
Offset Voltage (Balance)
+ 15V
Certications and
Approvals
CE, UL
* When tested according to ANSI/ESD STM3.1 at high
fan speed
** Air Velocity tested at 1 ft. distance from center of fan
to Anemometer