EMIT 50643 Installation, Operation And Maintenance Manual

TECHNICAL BULLETIN TB-6590
Mini Zero Volt Ionizer 2
Installation, Operation and Maintenance
Figure 1. EMIT Mini Zero Volt Ionizer 2

Description

The EMIT Mini Zero Volt Ionizer (ZVI) 2 is a compact bench
top ionizer used for neutralizing electrostatic charges on
insulators and ungrounded conductors in a 6" x 24" coverage
area. Its compact size (5.3" high x 3.5" wide x 1.7" deep
with stand) allows it to be used in confined spaces such
as environmental chambers and automated equipment. It
may also be used at standard ESD workstations. Its fast
discharge times (< 3 seconds at 12") and ±5 Volt offset
voltage exceed the required limits of ANSI/ESD S20.20 and
ESD TR53. Steady-State DC emitters are spaced farther
apart to prevent ion recombination, increase decay efficiency
and provide a broader coverage area of ionization. The
Mini ZVI 2's two-speed fan (33 CFM to 51 CFM) produces
consistent performance at both the low and high speeds.
Low airflow may be used when working with small parts and
components that may move with higher airflow. The Mini ZVI
2 features a stainless steel enclosure and multi-mount stand
to minimize contamination and corrosion when used in clean
or sensitive areas.
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)
TB-6590 Page 1 of 5 May 2014
EMIT - 3651 Walnut Avenue, Chino, CA 91710 • (909) 664-9980 • Website:
"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)
The EMIT Mini Zero Volt Ionizer 2 operates on Steady-State
DC. Steady-State 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. DC
power is constantly applied to the emitter points. The ionizer
utilizes feedback from the internal sensor grill to continuously
adjust the output to maintain balance.
The Mini Zero Volt Ionizer 2 is available in three models:
Item Region
50642 North America
50643 Europe
50649 Asia
EMIT offers the following accessories for the Mini Zero Volt
Ionizer 2:
Item Description
50658 Emitter Pin Cleaner, 20 Pack
50668 Replacement Emitter Pins, 8 Pack
Packaging
1 Mini Zero Volt Ionizer 2
1 Power Adapter, 24 VDC
1 Ground Cord
1 Emitter Pin Cleaner Pack
1 Certificate of Calibration
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