Index revision : A
9
7021
The effectiveness of the overcurrent protection (di/dt) must be checked every day. This check must be
carried out in an area with
no explosive atmosphere
by placing a ground device near the electrode of
the atomizer when the atomizer is switched on (the operator must be connected to ground): the control
module must switch to the fault state.
Additional equipment has to be placed outside the dangerous area and its starting device has to be
servo-controlled to the running mode of the booth aspiration fan. The correct working of the servo-control
has to be checked once a week.
A warning board has to be placed in full view close to the sparing area.
1.5. Important Recommendations
1.5.1. Paint Resistivity
see RT Nr 7005
1.5.2. Compressed Air Quality
The air must be filtered to a level that will guarantee a long life time and prevent any pollution during
painting.
The filter must be installed as close as possible to the facility. The filter cartridges must be changed reg-
ularly to ensure that the air is clean.
The inside of hoses supplying air to the atomizer and the ports of the quick-disconnect plate must be
clean and free of any traces of paint, solvent or other foreign matter.
WARNING : The guarantee does not cover damage caused by foreign matter such as paint,
solvent or other substances entering the air circuits of the TRP 501 / TRP 502.
1.5.3. Product Quality
The paint must be filtered to prevent any damage to the atomizer.
The maximum permissible particle size in the atomizer is 200 microns.
1.5.4. High voltage
Disable the high voltage if the atomizer is not operated for a prolonged period (conveyor shutdown, no
objects to be painted, slack periods, etc.) to prevent ionization of the air.
1.5.5. O-ring Seals
Use the seals recommended in this manual. For solvent-based products, seals in contact with the prod-
uct must be chemically inert seals resistant to swelling or chemical attack. The
TRP 501 or 502
is only
guaranteed to operate correctly if it is used with seals whose size and material conform to this manual.
1.5.6. Ventilation
Do not begin applying paint with the
TRP 501 or 502
before starting up the ventilation system in the
spraying booth. If the ventilation is cut, toxic substances such as organic solvents or ozone may remain
in the spraying booth, resulting in a risk of fire, poisoning or irritation.
