Desco 19520 Installation, Operation And Maintenance Manual

Bench Top Blower Ionizer
Installation, Operation and Maintenance
Figure 1. Desco Bench Top Blower Ionizer
Description
This ionizing unit is a self-balancing bench top ionizer.
The ionizer's Faraday Balance System assures low
offset voltage or balance automatically. It offers greater
efficiency and easier cleaning than conventional
ionizers. The Bench Top Ionizer is designed to
neutralize static electricity from insulators and isolated
conductors in localized work areas in assembly rooms,
wave solder lines, laboratories, QC, test stations,
packing and shipping areas and clean rooms.
Ionizers are useful in limiting electrostatic charge
generation, ElectroStatic Discharge, and ElectroStatic
Attraction, as well as preventing equipment latch-up.
ANSI/ESD S20.20 Paragraph 6.2.3.1 Protected
Areas Requirement states: "Ionization or other charge
mitigating techniques shall be used at the workstation
to neutralize electrostatic fields on all process essential
insulators if the electrostatic field is considered a threat."
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 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.
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 an electrostatic charge is
present on objects in the work environment, it will be
neutralized by attracting opposite polarity charges from
the ionized air. Note that ionization systems should
not be used as a primary means of charge control on
conductors or people. (Reference: IEC 61340-5-2:1
paragraph 5.2.9).
TB-2016 Page 1 of 6 October 2015
TECHNICAL BULLETIN TB-2016
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:

Ionizer Selection

ANSI/ESD S20.20 section 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
- operation and maintenance cost
The Desco Bench Top Blower Ionizer is available in the
following models:
Item Input Voltage Power Cord
19500 120VAC
19520 220VAC

Packaging

1 Bench Top Blower Ionizer
1 Power Cord, 6' (19500 only)
1 Filter and Guard Assembly
1 Certificate of Calibration

Installation

The unit is normally mounted at one end of a workbench
or area to be neutralized. It may also be mounted to
a wall or shelf. The ionizer's neutralization (discharge)
times will be best from approximately 6" to 42" in front
of the unit and will drop off as the distance from the unit
increases.
6"
Figure 2. Area of optimum charge neutralization
Made in the
United States of America
North America
Not Included
42"
Desco.com
© 2015 DESCO INDUSTRIES, INC.
Employee Owned
18"
12"