Desco 60600 Installation Manual

TECHNICAL BULLETIN TB-3006

High Output Overhead Ionizer
Installation, Operation and Maintenance

screens and regular cleaning wipes. Examples of floating
or isolated conductors are: loaded PCB mounted in a
stand where the pins are not contacting the dissipative
workstation. Ionization is not effective on items that have
large capacitance, like people and carts; however, ionizers
should be considered as a method for charge neutralization
in cases where grounding cannot be achieved.

“Ionizers should be considered as a method for charge
neutralization in cases where grounding cannot be
achieved.” …“Air ionization can neutralize the static charge
on insulated and isolated objects by producing separate

Figure 1. High Output Overhead Ionizer

Description

The Desco 40" High Output Overhead Ionizer is designed
to neutralize electrostatic charges over a large work
area. The unique active feedback and balance circuit
automatically ensures and maintains the unit’s ion offset
voltage balance, despite variations in line voltage, air speed
or emitter electrode condition. The ionizer’s feedback circuit
also gives an audible and visual alarm indication when
maintenance is required. The overhead mounting design of
this ionizer allows it to provide maximum coverage without
consuming valuable work bench space. The need for
maintenance is minimized, while maximum neutralization
efficiency and overall performance is attained.

This overhead ionizer is unique - it comes equipped with
two factory installed lights and three heaters. The lights
are on continuously whenever the ionizer is turned on and
allow for better vision at the workstation. The heaters
are activated by a switch on the face of the ionizer. The
heaters will raise the temperature of the output air to about
10° above ambient. The heaters are only to offset the chill
factor of the moving air. They are not intended to warm the
workstation.

charges in the molecules of the gases of the surrounding
air. When a static charge is present on objects in the work
environment, it will be neutralized by attracting opposite
polarity charges from the ionized air.” (EN 61340-5-2
paragraph 5.2.9)

This ionizer is NIST calibrated and comes equipped with
universal IEC cord connectors.

Model Voltage / Hz Light & Heater IEC Cord
60600 120 / 50-60 Yes 7' 6"

IONIZER SELECTION

ANSI/ESD S20.20 paragraph 6.1.1.2. ESD Control Program
Plan Guidance states: “The Plan should include a listing of
the specific type of ESD protective materials and equipment
used in the Program.” When selecting an ionizer life cycle
costs should be considered including: equipment cost,
installation cost, and operation and maintenance cost.

Made in America

Ionizers are useful in preventing electrostatic charge
generation, ElectroStatic Discharge, ElectroStatic Attraction,
as well as preventing equipment latch-up and safety related
shock. Per ANSI/ESDS20.20-2007 section 8.3 “In order
to mitigate field-induced CDM [Charged Device Model]
damage, the ESD program shall include a plan for the
handling of process-required insulators. If the field exceeds
2,000 volts/inch, steps shall be taken to either: A) Separate
the insulator from the ESD-sensitive device by a distance
of 30 cm (12 inches); or B) Use ionization or other charge
mitigating techniques to neutralize the charge.”

Ionization is used to neutralize charges on process
necessary insulators and isolated semiconductors. Some
examples of process necessary insulators are: the PC
board itself, plastic test stands, plastic housing where
a PCB may be mounted, as well as computer monitor

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone]

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Fax [phone] • Web Site: Desco.com

TB-3006 July 2010 Page 1 of 4

24 IN.

OPTIMUM

PERFORMANCE ZONE

24 IN.

48 IN.

Figure 2. Area of optimum charge neutralization

The unit provides better coverage without using excessive
bench space. The ionizer’s discharge times (neutralization
efficiency) is optimal at approximately 12" to 24" above the
work surface, and will drop off as the distance from the unit
increases.

*Never use incandescent lamps in the 60600 ionizer.
Contact Desco Customer Service at [phone] for
lamp replacement information.

© 2010 DESCO INDUSTRIES INC.

Employee Owned

Installation

Figure 3 shows multiple mounting positions relative to the
bench top. Mounting may be accomplished by brackets
from shelving, vertical uprights, lights, or with chains hung
from the ceiling. Ensure that air flow is not impeded by the
method used.

Figure 3. Mounting alternatives relative to the bench top

Mounting Suggestions

Mounting the ionizer is facilitated by five 1/4"-20 threaded
holes on each end and universal brackets supplied with
the unit. To avoid a potential shock hazard, be sure that
fasteners do not extend more than 1/2" into unit.

Air filter

Figure 5. Filter for ionizer

Operation

After the ionizer has been securely mounted, connect
the power cord to the IEC connector on the back of the
unit and then to a convenient grounded receptacle. It is
recommended that the AC outlet be checked for proper
wiring and grounding, as the ionizer depends on a good
ground for offset voltage balancing.

Set the front panel rocker fan switch to either “HIGH” or
“LOW” speed fan. Higher air flow will result in a faster
neutralization rate.

If the ionizer is used in a manner not specified by the
manufacturer, the protection provided by the ionizer
may be impaired.

Figure 4. 1/4"-20 threaded mounting holes

Filter for Ionizer (Optional)

A filter is available for the High Output Overhead Ionizer.
Overhead ionizers operate more effectively when the air
is free of contaminants. The filter will allow the overhead
ionizer to operate longer between maintenance intervals.
Ensure that ionizer is turned off. Remove grills and install
filters on the ionizer using screws supplied (do not re-install
grills over filters). Replacement filters (Desco item #60455)
are available. For more information on the filter, call our
customer service department at 909-627-8178 (Chino, CA)
or 781-821-8370 (Canton, MA).

Maintenance

“As with all ionizers, periodic maintenance will be needed to
provide optimum performance.” (Reference: IEC 61340-5­2:1paragraph 5.2.9).

The frequency of monitoring ionizers really depends on how
and where they are used. Since the majority of them use a
fan to transport the ions to the working area, the cleanliness
of the air directly affects their performance over time and
how often the emitters should be cleaned.

ANSI/ESD S20.20 specifies that the compliance
verification of ionizers be tested per ESD TR53. EIA-625
recommends checking ionizers every 6 months, but
this may not be suitable for many programs particularly
since an out-of-balance may exist for months before it
is checked again. ANSI/ESD S20.20 paragraph 6.1.3.1
Compliance Verification Plan Requirement states: “Test
equipment shall be selected to make measurements of
appropriate properties of the technical requirements that are
incorporated into the ESD program plan.” And paragraph

6.1.3.2. Compliance Verification Plan Guidance states: “In
addition to internal audits, external audits (Organization and
supplier of ESDS items) should be performed to ensure
compliance with planned requirements. Verifications should
include routine checks of the Technical Requirements in the
Plan. The frequency of verification checks should be based
on the control item usage, its durability and associated risk
of failure.”

TB-3006 Page 2 of 4

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Fax [phone] • Web Site: Desco.com

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone]

© 2010 DESCO INDUSTRIES INC.

Employee Owned