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
Benchtop AC Ionizer
Installation, Operation, and Maintenance
Description
The Trustat
®
Benchtop AC Ionizer is used for
neutralizing electrostatic charges on insulators and
ungrounded conductors. Its discharge times
(< 1 second at 12") and ±10 Volt offset voltage meet
the required limits of ANSI/ESD S20.20 and ESD
TR53. The Trustat
®
Benchtop AC Ionizer generates
AC high voltage to produce an airflow rich in positive
and negative ions. The fan speed is controlled by a
two-state rocker switch for low (52 CFM) and high (76
CFM) airflow. The low wattage heating element can be
enabled to improve operator comfort. The emitters can
be quickly and regularly cleaned by fully rotating and
releasing the knob located over the center of the fan.
The Trustat
®
Benchtop AC Ionizer features a powder
coated steel enclosure and stand.
November 2021
Ionizers are useful in preventing electrostatic charge
generation, electrostatic discharge, electrostatic
attraction, as well as preventing equipment latch-up.
Per ANSI/ESD S20.20 section 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.” “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: EN 61340-5-2:1
clause 5.2.9)
“The primary method of static charge control is direct
connection to ground for conductors, static dissipative
materials, and personnel. A complete static control
program must also deal with isolated conductors
that cannot be grounded, insulating materials (e.g.,
most common plastics), and moving personnel who
cannot use wrist or heel straps or ESD control flooring
and footwear. Air ionization is not a replacement for
grounding methods. It is one component of a complete
static control program. Ionizers are used when it is not
possible to properly ground everything and as backup
to other static control methods. In clean rooms, air
ionization may be one of the few methods of static
control available.” (ESD Handbook ESD TR20.20
Ionization, section 5.3.6.1 Introduction and Purpose /
General Information)
Packaging
1 Trustat
®
Benchtop AC Ionizer
1 Snap-on Filter Retainer
1 Air Filter
1 Power Cord with North America Plug, 6 ft.
1 Certificate of Calibration
User Guide
TB-8003
Figure 1. Trustat® 19550 Benchtop AC Ionizer
