Index revision : D - March 2018
9
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• Connect to the ground all metal parts of the installation (paint pumps, containers, stools,
spin coaters, etc.) positioned within three meters of the gun.
• Keep the spray zone clean and free of all unnecessary components.
• The floor where the operator works must be antistatic (either unclad concrete flooring or
a metal grating). Never cover the floor with an insulating covering. In potentially explosive
locations, the floor assemblies must be antistatic, in accordance with Standard EN 61340-
4-1.
• The use inside the booth of an uncovered flame, any incandescent object, a device or
object capable of generating sparks other than the gun is strictly prohibited.
It is also prohibited to store in the vicinity of the booth or in front of the doors flammable
products or containers in which such products had been stored.
• The jars and cans containing paint or solvent must be systematically closed after use.
• The paint feed pump used must be rated with a maximum 1:1 ratio, and the pump’s air
supply must be equipped with a safety relief valve to limit pressure to a maximum value
of 6.5 bar.
•
Inside the explosive zone
, it is prohibited to use electrical or non-electrical equipment that
has not been certified, like electrical extension cables, surge protector power bars,
switches, etc.
2.3. Rules of use
• Verify the extraction ventilation system efficiency on a daily basis.
• Once a week, verify the adequate operations of the ventilation system servo controls.
• Before starting to spray, be sure the gun contains a nozzle and an air cap, and moreover
verify that the air cap ring has been perfectly clamped.
• Correctly ground all metal parts of the booth, along with the parts to be painted. The
resistance relative to the ground must be less than or equal to 1M
Ω
(for a 500-V voltage
measurement). This resistance must be regularly checked and, in any case, at least once
a week.
• The operator must wear antistatic shoes in accordance with Standard EN 61340-4-3 and
moreover hold the
Nanogun Airmix
®
gun either with a bare hand or with antistatic gloves
or gloves modified so as to establish a direct contact between the handle and his/her
hand. The shoes intended to be worn by the operator must be compliant with Standard
ISO 20344. The measured insulation resistance must not exceed 100M
Ω
.
• The protective clothing intended to be worn, including gloves, must be compliant with
Standard EN 1149-5. The measured insulation resistance must not exceed 100M
Ω
.
•
The operator must also wear ear defenders when using the guns
Nanogun Airmix
®
(
• Ensure that anyone entering the spray zone is wearing the antistatic shoes or has been
grounded by any other means.
• Never throw or intentionally allow the electrostatic gun to fall. A gun drop could damage
the high-voltage generator. After a fall, it is advised to verify the good working order of
the gun outside of the zone before its subsequent reuse.
• Never point the gun in the direction of another person.
• Verify the gun at least once a week.
• Refrain from using the equipment in the following cases:
1 If an air leak is observed around the gun when the trigger is released;
2 If the gun’s electrical connector is not being securely held in place by means of the
two safety screws;
3 If the gun barrel and handle show signs of a shock capable of altering the seal on the
gun’s internal parts.
• The manual electrostatic projection device can only be operated if it is in perfect condi-
tion. Any damaged equipment must be immediately removed from active service and
repaired.
Worn parts must be immediately replaced.
