Desco Viper Ion Gun Installation, Operation And Maintenance Manual

TECHNICAL BULLETIN TB-3065.E

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 blowoff 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.” [CLC/TR 61340-5-2 User guide sub-clause

4.7.6.5.2.4 Point-of-use ionization]

“Air ionization can neutralize the static charge on
insulated and isolated objects by charging the molecules
of the gases of the surrounding air. Whatever static
charge is present on objects in the work environment,
this will be neutralized by attracting opposite polarity

Figure 1. Desco 19595 Viper Ion Gun

Description

The Desco 19595 Viper Ion Gun is a point-of-use ioniser
used for neutralising electrostatic charges to eliminate
attraction, visual imperfections and contamination
issues by dislodging charged dust and debris. It uses
compressed clean dry air (CDA). Fast discharge
times with ±15 volt offset voltage meet the required
limits of EN 61340-5-1 tested per IEC 61340-4-7.
A high frequency piezo AC power supply is located
inside the hand piece to maintain consistent ionisation
performance with longer hose lengths (standard 1.8
m 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 ionised air. A red LED indicates
abnormal output. Normal power consumption is
approximately 2.5 Watts.

charges from the air.” [CLC/TR 61340-5-2 User guide
ionization clause 4.7.6.1]

Packaging

1 Viper Ion Gun
1 Power Adapter, 24VDC, with interchangeable plugs
(North America, UK/Asia, Europe)
1 Air Tube, 1.8 m Length
1 Certificate of Calibration

Made in the

United States of America

DESCO EUROPE - 2A DUNHAMS LANE, LETCHWORTH, HERTFORDSHIRE, SG6 1BE, UK

Phone: [phone] • E-mail: [e-mail], Website: DescoEurope.com

TB-3065.E Page 1 of 3

September 2017

© 2017 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 ionised air when the
trigger is depressed.

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 ionised 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 (15 cm) from
the surface you want to neutralise 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 ionised 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 earth protective ground.

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.

DESCO EUROPE - 2A DUNHAMS LANE, LETCHWORTH, HERTFORDSHIRE, SG6 1BE, UK

Phone: [phone] • E-mail: [e-mail], Website: DescoEurope.com

Figure 4. Using the Viper Ion Gun

TB-3065.E Page 2 of 3

© 2017 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
use 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.” [CLC/TR 61340-5-2 User
guide Ionization sub-clause 4.7.6.7 Maintenance and
cleaning]

EIA-625, recommends checking ionisers 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. EN 61340-5-1 clause

5.2.4 Compliance Verification Plan states: “The test

equipment selected shall be capable of making the
measurements defined in the compliance verification
plan.”

Cleaning the Emitter Point

To maintain optimum neutralisation efficiency and
operation, cleaning should be performed on a regular
basis. Use the Desco Europe 200155 Emitter Point
Cleaners or a swab dampened with isopropyl alcohol to
clean the ion gun’s emitter point.

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)

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)

Nozzle - PPS polymer

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.

Neutralisation (Discharge) Times

All measurements were taken from ±1,000 V to ±100 V
at a distance of 6 inches (15 cm).

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

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

See the Desco Europe Warranty -

DescoEurope.com/Limited-Warranty.aspx

DESCO EUROPE - 2A DUNHAMS LANE, LETCHWORTH, HERTFORDSHIRE, SG6 1BE, UK

Phone: [phone] • E-mail: [e-mail], Website: DescoEurope.com

TB-3065.E Page 3 of 3

© 2017 DESCO INDUSTRIES, INC.

Employee Owned