Nordson Encore XL Powder, Manual

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© 2021 Nordson Corporation
1607027-01
1-3 Safety
Grounding
WARNING: Operating faulty electrostatic equipment is hazardous and can cause
electrocution, fire, or explosion. Make resistance checks part of your periodic mainte -
nance program. If you receive even a slight electrical shock or notice static sparking or
arcing, shut down all electrical or electrostatic equipment immediately. Do not restart the
equipment until the problem has been identified and corrected.
Grounding inside and around the booth openings must comply with NFPA requirements
for Class II, Division 1 or 2 Hazardous Locations. Refer to NFPA 33, NFPA 70 (NEC
articles 500, 502, and 516), and NFPA 77, latest conditions.
• All electrically conductive objects in the spray areas shall be electrically connected to
ground with a resistance of not more than 1 megohm as measured with an instrument
that applies at least 500 volts to the circuit being evaluated.
• Equipment to be grounded includes, but is not limited to, the floor of the spray area,
operator platforms, hoppers, photoeye supports, and blow-off nozzles. Personnel
working in the spray area must be grounded.
• There is a possible ignition potential from the charged human body. Personnel
standing on a painted surface, such as an operator platform, or wearing non-
conductive shoes, are not grounded. Personnel must wear shoes with conductive
soles or use a ground strap to maintain a connection to ground when working with or
around electrostatic equipment.
• Operators must maintain skin-to-handle contact between their hand and the gun
handle to prevent shocks while operating manual electrostatic spray guns. If gloves
must be worn, cut away the palm or fingers, wear electrically conductive gloves, or
wear a grounding strap connected to the gun handle or other true earth ground.
• Shut off electrostatic power supplies and ground gun electrodes before making
adjustments or cleaning powder spray guns.
• Connect all disconnected equipment, ground cables, and wires after servicing
equipment.
Action in the Event of a Malfunction
If a system or any equipment in a system malfunctions, shut off the system immediately
and perform the following steps:
• Disconnect and lock out system electrical power. Close hydraulic and pneumatic
shutoff valves and relieve pressures.
• Identify the reason for the malfunction and correct it before restarting the system.
Disposal
Dispose of equipment and materials used in operation and servicing according to local
codes.