Figure 2. Using the 963E Benchtop Air Ionizer
Maintenance
Occasional cleaning of the case and of the ionizing
electrodes 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 soap
with water may be used. The use of any other cleaning
solutions is not recommended.
CLEANING THE EMITTER POINTS
NOTE: Disconnect the power to the ionizer whenever
cleaning the emitter points.
When the emitter pionts become dirty, the internal
circuitry of the ionizer will be automatically adjusted to
emit an equal amount of positive and negative ions.
Particulates on the emitter point may, however, inhibit
ionization to a limited degree. 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 dampened with isopropyl alcohol. Access to
the points is available through the rear grill. Be careful
not to damage the points during cleaning.
Calibration
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.
Frequency of recalibration should be based on the
critical nature of those ESD sensitive items handled and
the risk of failure for the ESD protective equipment and
materials. In general, SCS recommends that calibration
be performed annually.
Periodically measure the balance and neutralization
times of the Bencthop Air Ionizer to verify that it is
performing within specifications. These measurements
should be taken using a charged plate monitor such as
the SCS items 711, 770004 and 770005.
Calibration should be performed in accordance with
the ESD Association ionization standard ANSI/ESD
STM3.1. With the fan speed set to high and a distance
of 12 inches (30 cm), the neutralization (discharge) time
of ±1 000V to ±1 00V should be less than 2 seconds, and
the balance should be ±1 SV or better.
TB-9007
Page 2 of 4
02020 DESCO NDUSTRIES, NC.
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