60601 Datasheet 60601 | P1-P3

Figure 1. Desco

60601

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 a circuit

malfunction has been detected. 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 a heater. The lights are on

continuously whenever the ionizer is turned on and allow for

better vision at the workstation. The heater is activated by

a switch on the face of the ionizer. The heater will raise the

ambient temperature by about 10°F. The heater is intended

to only offset the chill factor of the moving air. It is not

intended to warm the workstation.

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

screens and regular cleaning wipes. Examples of floating

TB-3068 April 2014 Page 1 of 4

High Output Overhead Ionizer

Installation, Operation and Maintenance

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

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.

Item Voltage / Hz Light & Heater IEC Cord

60601 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.

Employee Owned

TECHNICAL BULLETIN TB-3068

24 IN.

48 IN.

OPTIMUM

PERFORMANCE ZONE

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 ionizer. Contact

Desco Customer Service at (909) 627-8178 for lamp

replacement information.

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Made in the

United States of America

TB-3068 Page 2 of 4

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.

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.

Maintenance

“As with all ionizers, periodic maintenance will be needed to

provide optimum performance.” (Reference: IEC 61340-5-

2:1paragraph 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.”

Air filter

Employee Owned

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.

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 are available as

Desco item# 60455. For more information on the filter, call

our customer service department at 909-627-8178 (Chino,

CA) or 781-821-8370 (Canton, MA).

Figure 5. Filter for ionizer

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

TB-3068 Page 3 of 4

Under normal conditions the ionizer will attract dirt and dust

(especially on the emitter and fan guards). To maintain

optimum performance, cleaning must be done on a regular

basis. The emitter pins should be cleaned at least every 6

months. However, more frequent cleaning may be required

if used in environments with more contaminants.

Theory of Operation

By definition, materials that are insulators cannot have

static charges removed via grounding as they do not

conduct electricity. Ionizer emitters flood an area with

millions of positive and negative charged ions to neutralize

statically charged insulators.

Desco overhead ionizers employ a safe non-nuclear

Steady-State DC ionization source. Steady DC systems

consist of separate negative and positive ion emitters

connected by a pair of high-voltage cables to their

respective high-voltage power supplies. The ionizer’s

unique, closed loop monitoring circuitry monitors ion output

and automatically adjusts the unit to reach an equilibrium

at perfectly balanced ion flow. The ionizer is designed to

achieve balance under extreme conditions and is uniquely

able to maintain balance in almost any environment. Desco

ionizers meet the ANSI/ESD S20.20 less than ±50 volts

required limits offset voltage tested in accordance with

ANSI ESD S3.1. High Output Overhead Ionizers greatly

exceed the requirement providing ±15 volt auto balancing.

The unit’s circuitry also features a visual alarm, which alerts

the user of malfunction conditions caused by excessive

electrode contamination or the failure of either the

positive or negative power supply. When the High Output

Overhead Ionizer is ON and its output is balanced, the

blue LED indicator on the front of the unit will be steadily

lit. If a malfunction condition is detected the balance

circuit will cause the blue LED to flash until the problem is

corrected. See the maintenance section for recommended

maintenance procedures.

Employee Owned

Figure 6. Cleaning the emitters and fan guards

Emitter pin cleaning is very simple and should be

done frequently. TURN THE IONIZER OFF. Blow off

contaminants on the emitter assemblies and fan guards with

clean dry air.

If the ionizer does not return to proper balance, then you

may need to clean each emitter point more thoroughly.

TURN THE UNIT OFF AND DISCONNECT THE POWER

CORD. With a non-linting swab or small brush dipped in

isopropyl alcohol wipe each emitter needle thoroughly.

Brush off emitters to assure that stray filaments of cleaning

material are completely removed. A soft cloth and alcohol

may be used to clean each fan guard.

Emitter Needle Replacement

The tri-metallic emitters should not require replacement

unless broken or damaged. Contact Desco if replacement is

required.

Light Bulb Replacement

The High Output Overhead Ionizer features two fluorescent

light bulbs. They can be accessed and replaced by

removing the two covers located at the top of the ionizer.

The light bulbs should only be replaced by the same

compact fluorescent bulbs, 15 W max. NOTE: Never use

incandescent lamps in the High Output Overhead Ionizer.

Neutralization Efficiency (Discharge Times)

The comparative efficiency of overhead top ionizers is

determined by a standard test published by the ESD

Association Standard ANSI/ESD S3.1. The typical discharge

times measured using this standard for the ionizer are

shown in the following diagram. The performance of the

ionizer was measured with the unit positioned at varying

distances with the fan speed on high and without a filter.

DESCO IONIZER

Figure 7. Discharge times in seconds from ±1000 volts to

±100 volts on a 6" x 6" charged plate per ANSI/ESD S3.1

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

P1-P3 P4-P4

60601

Mfr. #:

Buy 60601

Manufacturer:

Desco

Description:

IONIZER, OVERHEAD, 40 INCH,WITH LIGHTS & HEATER ROHS COMPLIANT: NA

Lifecycle:

New from this manufacturer.

Delivery:

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