Desco Viper Ion Gun 19595 Installation, Operation And Maintenance Manual

TECHNICAL BULLETIN TB-3065

Viper Ion Gun
Installation, Operation and Maintenance

“There is sometimes a need to provide static control
in a small defined area or location. This may be done
to provide static control within production equipment,
in mini-environments, or to facilitate particle removal
from part of a product. Ionizers used for this purpose
may be blow-off guns or nozzles that work with a
supply of compressed air or nitrogen. They may use
either nuclear, soft x-ray or any of the previously
described types of corona ionization technology. It will
be important to choose a method of ionization and
cleanliness of the gas supply that is appropriate to the
work area.” (ESD handbook ESD TR20.20 section

5.3.6.5.2.4 Point-Of-Use Ionization)

“Necessary non-conductors in the environment cannot
lose their electrostatic charge by attachment to ground.
Ionization systems provide neutralization of charges on
these necessary non-conductive items (circuit board
materials and some device packages are examples

Figure 1. Desco 19595 Viper Ion Gun

Description

The Desco Viper Ion Gun is a point-of-use ionizer
used for neutralizing electrostatic charges to eliminate
attraction, visual imperfections and contamination
issues by dislodging charged dust and debris. It uses
compressed clean dry air (CDA), or a special nozzle
(19596) may be purchased separately for use with
nitrogen. Fast discharge times with ±15 volt offset
voltage meet the required limits of ANSI/ESD S20.20
and ESD TR53. A high frequency piezo AC power
supply is located Inside of hand piece to maintain
consistent ionization performance with longer hose
lengths (standard 6' hose included) and eliminate the
need for a remote console. The light weight of the Viper
Ion Gun (less than ½ pound; 200 grams) allows for
comfortable extended use by operators. The Viper Ion
Gun is designed with slotted tips to meet the OSHA
requirement for pressure relief. A green LED on the
back of the hand piece illuminates when the trigger is
depressed to indicate that the gun is outputting ionized
air. A red LED indicates abnormal output. Normal
power consumption is approximately 2.5 Watts.

of necessary non-conductors). Assessment of the
ESD hazard created by electrostatic charges on the
necessary nonconductors in the work place is required
to ensure that appropriate actions are implemented,
commensurate with risk to ESDS [ESD sensitive] items”.
(ANSI/ESD S20.20 Foreword)

Packaging

1 Viper Ion Gun
1 Power Adapter, 24VDC, with interchangeable plugs
(North America, UK/Asia, Europe)
1 Air Tube, 6' Length
1 Certificate of Calibration

Made in the

United States of America

The Viper Ion Gun and its accessories are available in
the following item numbers:

Item Description

19595 Viper Ion Gun

19596 Nitrogen Nozzle Tip

19597 Emitter Replacement Kit

19598 Clean Dry Air Nozzle Tip

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

TB-3065 Page 1 of 4

July 2018

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

© 2018 DESCO INDUSTRIES INC

Employee Owned

Features and Components

A

B

C
D

E

F G

Figure 2. Viper Ion Gun Meter features and components

A. Output Air Nozzle: Outputs ionized air when the
trigger is depressed. Use the Desco 19596 Nitrogen
Nozzle Tip when using nitrogen as the air supply.

B. Hanging Hook: Use to hang the hand piece when
not in use. The hook may be rotated 90 degrees.

C. Power LED: Illuminates green when the trigger is
depressed and ionized air blows out the nozzle.

D. Alarm LED: The red LED will illuminate during the
following conditions:

• the high frequency transformer breaks down and no
longer outputs high voltage

• the high voltage line shorts to ground

• the emitter becomes dirty or contaminated with
moisture or oil

Viper Ion Gun

Power

Power Cable

Air Tube (6 mm dia.)

Ground

Adapter

Wire

Figure 3. Installing the Viper Ion Gun

Operation

NOTE:

• Do not operate the main unit by turning the nozzle
toward a human body, especially to the face or to
the eye of a person. This may cause serious injury
to the person.

• Do not let the nozzle of the main unit touch
conductive or live parts.

• Do not drop the ion gun as it may damage the
piezoelectric power supply embedded in the unit.

• This product emits ozone. Do not use this products
in an enclosed space.

1. Hold the gun approximately six inches from the
surface you want to neutralize and blow off. Aim
the nozzle and hold down the trigger. The green
LED on the back of the gun should illuminate.
Static charges are typically discharged within one
second.

2. Release the trigger when the surface is clean.

E. Trigger: Depress to output ionized air.

F. Air Input Port: Use the one-touch joint to secure a 6

mm air tube to the ion gun.

G. Power Cable: Connect the power cable to the power
adapter to supply power to the ion gun.

Installation

1. Connect the Viper Ion Gun’s power cable to the
power adapter.

2. Connect the power adapter to an appropriate power
outlet.

3. Connect the green wire to equipment ground. The
face plate screw of a grounded AC wall outlet may
provide a convenient connection point.

4. Insert an air tube (6 mm outside diameter) into the
ion gun’s air input port.

5. Connect the other end of the air tube to a source of
clean dry air or nitrogen.

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

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

TB-3065 Page 2 of 4

Figure 4. Using the Viper Ion Gun

© 2018 DESCO INDUSTRIES INC

Employee Owned

Maintenance

“All ionization devices will require periodic maintenance
for proper operation. Maintenance intervals for ionizers
vary widely depending on the type of ionization
equipment and use environment. Critical clean room
uses will generally require more frequent attention. It
is important to set-up a routine schedule for ionizer
service. Routine service is typically required to meet
quality audit requirements.” (ESD Handbook TR20.20
section 5.3.6.7 Maintenance / Cleaning)

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 section

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.”

Figure 5. Replacing the emitter point using the tool
included in the

19597

Emitter Replacement Kit

Cleaning the Emitter Point

To maintain optimum neutralization efficiency and
operation, cleaning should be performed on a regular
basis. Use the Desco 60506 Emitter Point Cleaners or
a swab dampened with isopropyl alcohol to clean the
ion gun’s emitter point.

1. Disconnect the ion gun from its power supply and
air supply.

2. Remove the nozzle.

3. Gently clean the emitter point using a swab
dampened with Isopropyl alcohol. Screw the nozzle
back onto the ion gun when complete.

Replacing the Emitter Point

The Desco 19597 Emitter Replacement Kit is available
should the emitter point need to be replaced. The kit
includes 5 replacement emitter points and a tool needed
to unscrew the emitter point from the Viper Ion Gun’s
nozzle.

1. Disconnect the ion gun from its power supply and
air supply.

2. Remove the nozzle.

3. Use the tool included in the 19597 Emitter
Replacement Kit to unscrew the emitter point
located inside the gun’s nozzle and replace it with a
new one.

Neutralization (Discharge) Times

All measurements were taken from ±1,000 V to ±100 V
at a distance of 6 inches.

Air Pressure
(psi)

+ Discharge
(seconds)

- Discharge
(seconds)

15 29 44 58 73 87

.5 .3 .3 .2 .2 .2

.6 .3 .3 .2 .2 .2

4. Secure the nozzle back to the ion gun.

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

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

TB-3065 Page 3 of 4

© 2018 DESCO INDUSTRIES INC

Employee Owned

Specifications

Power Supply Input
Voltage

Power Supply Output
Voltage

Operating Temperature 32ºF to 104ºF (0 to 40ºC)

Dimensions 6.5" x 5.4" x 1.0"

Weight 0.4 lbs (0.2 kg)

Balance ±15 V

Ozone <0.04 ppm

Supply Pressure 7 psi to 87 psi

Minimum Airow 13 CFM

Gas Input Clean Dry Air (CDA) or

Gas Connection 6 mm port

Enclosure Gun - PBT polymer

100-240 VAC, 50/60 Hz

24 VDC

(165 mm x 136 mm x 25
mm)

Nitrogen

Nozzle - PPS polymer

Limited Warranty, Warranty Exclusions, Limit
of Liability and RMA Request Instructions

See the Desco Warranty:

Desco.com/Limited-Warranty.aspx

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

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

TB-3065 Page 4 of 4

© 2018 DESCO INDUSTRIES INC

Employee Owned