DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
TB-8003
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© 2021 DESCO INDUSTRIES INC
Employee Owned
Maintenance
Under normal conditions the ionizer will attract dirt and
dust, especially on the ionizing electrodes. To maintain
optimum neutralization efficiency and operation,
cleaning should be performed on a regular basis.
Maintenance at least once a month is recommended
to preserve optimum neutralizing performance. The
ionizing electrodes can be quickly and regularly cleaned
by fully rotating and releasing the Emitter Point Cleaner
Knob located over the center of the grill on the front
panel of the blower.
An air-intake filter and retainer have been provided for
some applications and/or environments outside of the
Cleanroom and Medical Industries. Users in more dirty
manufacturing environments should install the filter
onto the air-intake grill (on rear panel of unit) using the
snap-on retainer to keep the inside of the blower clean.
This filter should be changed every 2 to 4 weeks or as
needed per a visual inspection.
The balance of the unit is intrinsic due to its floating
ionization circuit. Hence, balance and long-term drift are
nominally zero for a normally functioning unit. Periodic
cleaning is beneficial for maintaining minimum discharge
times. Both the discharge time and balance may be
tested using a charged plate analyzer.
If necessary, the unit may be disassembled for more
extensive maintenance and cleaning beyond that
described above.
NOTE: The AC power cord MUST be disconnected
before the unit can be disassembled for
maintenance.
First, turn the unit OFF and unplug the power cord.
Unthread and remove 3 Phillips head screws on each
side and 2 in rear (8 total). The bottom/base chassis
plate and ionization-circuit subassembly can next be
separated from the top/cover chassis plate and fan.
If necessary, the heater-element subassembly and the
ionizer subassembly may be separated from the air-exit
grill subassembly after first unthreading 4 Phillips-head
screws, and then removing the 4 black ionizer retaining
clips freed by the screw removal.
Similarly, the fan may be separated from the chassis
top by unthreading the 4 corner retaining nuts inside the
chassis. Wires may be disconnected at fast-on terminals
(i.e. fan, ionizer subassembly) for further disengagement
if necessary. Take careful note of all wire and terminal
positions before disconnection to correctly reassemble
the unit after cleaning.
The emitter pin electrodes may be cleaned using a
Q-Tip type cotton swab or a soft nylon toothbrush
dampened with IPA (Isopropyl alcohol). Clean the
blades of the fan and other accessible internal surfaces
using a soft-bristle brush or cloth agitator and/or
compressed air.
Use caution when cleaning inside the blower. The
ionizing electrodes are sharp.
After cleaning, reassemble all internal components and
subassemblies and reconnect all wiring as required.
Reengage the bottom and top blower sections and
fasten by fully threading the 8 external chassis screws.
Plug in the power cord and turn the unit back ON.
Figure 4. Using the Trustat® Benchtop Ionizer at a
machine station
