Renfert Basic quattro 2954-0005 User manual

0809 21-6573 A
Basic quattro
No. 2954-0005 / 2954-1005
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Basic quattro
No. 2954-0005 / 2954-1005
3. Safety Information
3.1 Employed Symbols
The following symbols are used in these
instructions and on the unit:
Danger
This indicates an imminent risk
of injury.
Electrical hazard
There is a risk of electrical
shock.
Attention
Failure to observe the associ-
ated information can result in
damage to the unit.
Note
The operating instructions con-
tain useful information to make
handling easier.
Wear eye protection.
Only for indoor use.
Before opening the unit, always
disconnect it from the power
supply.
Note the operating instructions.
3.2 Safety Information
• Always disconnect the unit from the
compressed air and power sources
prior to beginning any maintenance
work.
• When working on the tank (filling up,
cleaning, maintenance) wear protec-
tive glasses for protecting your eyes.
ENGLISH
1. Introduction
We are pleased with your decision to
purchase the Basic quattro.
Please read the following operat-
ing instructions carefully and
observe all the information they
contain in order to ensure long
and trouble-free service.
2. Application Area
The Basic line of sandblasting units are
designed for use in dental laboratories to
remove investment residues, oxides on
cast objects, and for surface treatment.
2.1 Ambient Conditions
(in accordance with DIN EN 61010-1)
The Basic quattro may only be operated:
• Indoors;
• Up to an altitude of 2,000 m [6,500 ft]
above sea level;
• At an ambient temperature of 5 - 40°C
[41 - 104°F] *);
• At a maximum relative humidity of 80%
at 31°C [87.8°F], decreasing linearly to
50% relative
humidity at 40°C [104°F] *);
• With a mains power supply where cur-
rent fluctua-tions do not exceed 10% of
the nominal value;
• Under level 2 contamination conditions;
•
Under overvoltage category II conditions.
*) Between 5 – 30°C [41 - 86°F], the unit can be operated at a
relative humidity of up to 80%. At temperatures between
31 - 40°C [87.8 - 104°F], the humidity must decrease
proportionally in order to ensure operational readiness (e.g.,
at 35°C [95°F] = 65% humidity; at 40°C [104°F] = 50%
humidity). The unit may not be operated at temperatures
above 40°C [104°F].

- 16 -EN
• Any residue of abrasive material on
the gasket may lead to leakage and
early wear of the gasket. After filling
up clean the thread and the gasket
and close the lid properly.
• Solvents and tensides can create
micro-cracking in the plastic (dan-
ger of explosion!). Clean the tank
and the lid only with a dry cloth. Do
not write or stick something on the
tanks.
• Check the tanks and the lids regu-
larly on damages and replace them
in case of doubt.
• Check the tank cover for correct
seating prior to beginning operation.
Covers that are not securely closed
can suddenly be blown off as the
tank pressure increases. The result-
ing flying parts and abrasive repre-
sent a serious hazard.
• Never operate the blasting units
without suitable dust extraction and
appropriate protective gear, as this
could result in health hazards. The
type of dust extraction should be se-
lected on the basis of the dust being
generated. Follow here absolutely
EN 60335-2-69 appendix AA or ask
the appropriate authorities.
• Improper use can result in the risk of
eye or skin injuries.
• Never direct the blasting material
towards eyes or unprotected areas
of skin!
• Never work with the view screen
open!
Caution: Failure to wear proper
eye protection can result in eye
injury due to particles sus-
pended in the air. Always wear
proper eye protection to protect
your vision!
• Do not employ the foot switch when
only the compressed air supply hose
is connected. The loose hose could
wrap around itself and cause serious
injury.
• Unplug the unit from the wall outlet
before changing the fluorescent tube.
• Do not squeeze or bend the fluores-
cent tube body when replacing the
tube (breakage hazard). Always wear
gloves or use a towel to protect your
hands against possible glass
splinters.
• Inspect power cords before begin-
ning operation. The unit may not be
operated if the power cord is
damaged.
3.3 Liability Exclusion
Renfert GmbH shall be absolved from
all claims for damages or warranty if:
• The product is employed for any pur-
poses other than those cited in the
operating instructions;
• The product is altered in any way oth-
er than those alterations described in
the operating instructions;
• The product is repaired by other than
an authorized facility or if any but
Renfert OEM parts are employed;
• The product continues to be em-
ployed, despite obvious safety faults.
4. Installation /
Commissioning
4.1 Setting up and Connecting
the Unit
1. Inspect the tank for proper installation
(Fig. 1).
2. Check the voltage information on the
nameplate.
3. The unit is operational with two tanks.
To connect additional tanks, please
refer to Installation
Instructions, No. 21-9498.
4. Remove the foot switch from its ship-
ping location in the blasting chamber.
5. Connect the foot switch to the sand-
blasting unit (red + yellow). Make sure
to both pneumatic hoses are fully
inserted up to their stops (Fig. 2).

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6. Connect the compressed air supply
to the sandblasting unit. To do this,
loosen the screw-on air coupling on
the unit (Fig. 3).
7. Push the screw-on coupling over the
supplied blue compressed air hose
(Fig. 4).
8. Connect the compressed air hose to
the unit and tighten the coupling sleeve
(Fig. 5a).
9. Connect the compressed air hose to
the compressed air supply (Fig. 5b).
10. Do not bend or kink the hoses (Fig. 6)!
11. Connect the dust extraction hose to
the extraction tube (Fig. 7).
Do not connect the unit to the
mains power supply yet!
4.2 Starting the Unit
1. Connect the mains power cord to the
sandblasting unit (Fig. 11), then plug
the power cord into the wall outlet
(Fig. 12).
2. Switch the unit on (Fig. 13).
4.3 Adjusting the Operating
Pressure
1. Select the sandblasting tank (Fig. 14).
2. Adjust a blasting pressure of 1-6 bar
[14.5–87 psi] (Fig. 15). The pressure is
displayed on the manometer
(Fig. 15a). The pressure adjustment
applies to all sandblasting tanks.
4.4 Filling the Sandblasting
Tanks
Never press the foot switch
during filling. Before closing
the tank, be sure to clean the
threads in the cover and the
tank to remove any abrasive
residue.
Even though the manometer
may indicate pressure, the sand-
blasting tanks are only under
pressure if the foot switch is
engaged.
1. Unscrew the tank cover (Fig. 16).
2. Add abrasive up to the maximum fill
level (the point where the tank jacket
thickens just below the thread)
(Fig. 17). Make sure the abrasive
being used is compatible with the
sandblasting tank.
3. Reinstall the tank cover (Fig. 18).
Do not cross-thread the cover.
Always use only clean, dry abrasive of the
appropriate grain size (refer to the
accessories).
The sandblasting unit is now
operational.
5. Cold silanization in the
sandblasting unit
The Basic series of Renfert sandblast-
ing units is exclusively recommended by
3M ESPE for use with ROCATEC™. This
bonding system is ideal if an adhesive
bond is required between a composite and
a dental material (metal, acrylic, porcelain,
zirconia porcelain).
Advantage: The surface film is applied
cold, preventing thermal loading of metal
frameworks and consequently the risk
of distortion. All units in the Basic series
can be used for ROCATEC™ due to their
regular, homogeneous jet flow.
6. Cleaning / Maintenance
Switch off machine and pull
plug out before starting clean-
ing and maintenance work!
6.1 Cleaning the Interior
• Use only solvent-free cleansers (e.g.,
soapy water).
• Remove the grate and vacuum the
blasting chamber (Fig. 19+20).
• Wipe out the tanks and lids only with a
dry cloth!

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6.2 Condensation
1. Inspect the water separator.
2. Drain any water off through the valve
(Fig. 21).
6.3 Blasting Nozzle
Replacement
1. Refer to insert no. 21-9162 for
installation.
2. Inspect for abrasive residue.
3. Inspect the seal ring position.
6.4 View Port Replacement
Please refer to the installation instructions
provided with the new pane
(insert no. 21-9811).
6.5 Sandblasting Hose
Replacement
1. Disconnect the sandblasting unit from
the compressed air supply (Fig. 5,4,3).
2. Refer to insert no. 21-9162 for the
installation instructions.
6.6 Replacing the Fluorescent
Lamp
Danger of breakage!
Do not press on the fluorescent
lamp or try to bend it when re-
placing it. We recommend using
gloves or a cloth to protect your
hands in case of breakage.
• Switch off the unit.
• Pull plug out.
• Lightly press light cover on the right side
and remove it (Fig. 8).
• Pull fluorescent lamp horizontally out of
the socket and remove it.
• Vacuum socket as thoroughly as
possible.
• Insert new fluorescent lamp in the
retainer and slide it horizontally into the
socket (Fig. 9).
• Install lamp cover in the housing on the
left side, then press it to the right until it
clicks into position (Fig. 10).
Use only original Renfert re-
placement fluorescent lamps
(see spare parts list).
6.7 Replacing the lamp cover
• Switch off the unit.
• Pull plug out.
• Lightly press lamp cover on the right
side and remove it (Fig. 8).
• Install lamp cover in the housing on the
left side, then press it to the right until it
clicks into position (Fig. 10)
7. Spare Parts
For the order numbers of consumables
and spare parts please refer to the spare
parts list at the end of this manual.
8. Warranty
Provided the unit is properly used, Renfert
warrants all parts of the Basic quattro for
a period of 3 years. In case of any claims
for warranty original dealers‘ invoice is
required. Components subject to natu-
ral wear (e.g., blasting nozzles, hoses,
fluorescent tubes, hose connections, view
panes, filter materials, etc.) are excluded
from this warranty. The warranty is voided
in case of improper use; failure to observe
the operating, cleaning, maintenance, and
connection instructions; in case of inde-
pendent repairs or repairs by unauthor-
ized personnel; if spare parts from other
manufacturers are employed, or; in case
of unusual influences or influences not in
compliance with the utilization instructions.
Warranty service shall not extend the
original warranty.
9. Technical Specifications
Working pressure: 1 - 6 bar [14,5 - 87 psi]
Connecting pressure, external:
6 - 8 bar [87 - 116 psi]
Air consumption: 120 l/min. at 6 bar
[87 psi]
Voltage: 230 V, 50/60 Hz
100-120 V, 50/60 Hz
Lamp power consumption: 16 W
Cable length: 2 m [78,74 inch]

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Ø hose connection: interior: 4 mm
[0,16 inch]
exterior: 6 mm [0,24 inch]
Ø size of pipe union for external extraction
unit:
interior: 35 mm [1,38 inch]
exterior: 40 mm [1,58 inch]
Dimensions 4-tank version (WxHxD):
425 x 305 x 560 mm
[16.74 x 12.02 x 22.06 inch]
Blasting chamber volume: 21 l
Tank capacity: 1000 ml each
Weight 2-tank version (empty):
approx. 11 kg
Noise level according to DIN 45635-01-
KL3:
< 72 dB(A)
10. Shipping Notes
• Empty all sandblasting tanks.
• Request a Renfert shipping box
(Tel.: [phone]).
• If a Renfert shipping box is not used, al-
ways disassemble any additional tanks
(otherwise we can assume no liability for
shipping damage).
The return form can be downloaded from
the „Advice“ section on the Renfert web-
site at www.renfert.com.
11. Disposing of the Unit
The unit must be disposed of by an au-
thorized recycling operation. The selected
firm must be informed of all possibly
health-hazardous residues in the unit.
11.1 Disposal of the lighting
equipment
Before disposing of the sandblasting unit / the
extraction box, please remove the lighting
equipment including the lamp.
Remove the mains plug•
Loosen the 2 fixation screws from the•
lighting equipment at the back of the
sandblasting unit / extraction box.
Remove the lighting equipment including•
the lamp.
For disposal of the lighting equipment
please observe the following advice:
To conserve and protect the environ-
ment, prevent environmental pollution and
improve the recycling of raw materials, the
European Commission adopted a directive
that requires the manufacturer to accept
the return of electrical and electronic units
for proper disposal or recycling.
Within the European Union units with this
symbol should not therefore be disposed
of in unsorted domestic waste:
For more information regarding proper dis-
posal please apply at your local authorities.
12. Standard Delivery
1 Basic quattro
1 Foot switch
1 Connection set
1 Fluorescent tube, with lamp cover
1 Accessories set
2 Abrasive samples
1 Set of Operating Instructions, with at-
tachment
1 Power cord
13. Delivery Versions
No. 2954-0005 Basic quattro Basic unit,
2 tanks, 230 V, 50/60 Hz
1 x 25-70 μm + 1 x 70-
250 μm
No. 2954-1005 Basic quattro Basic unit,
2 tanks, 100-120 V,
50/60 Hz 1 x 25-70 μm +
1 x 70-250 μm

- 20 -EN
14. Accessories
Additional tanks
No. 2954-0050 25-70 μm Right / blue
No. 2954-0051 25-70 μm Left / red
No. 2954-0250 70-250 μm Right / blue
No. 2954-0251 70-250 μm Left / red
Protective mesh
No. 2960-0003 Protective mesh for view
port
Abrasives
Cobra aluminium oxide
No. 1594-1105 25 μm [500 mesh],
white 5 kg canister
No. 1594-1205 50 μm [270 mesh],
white 5 kg canister
No. 1594-2220 50 μm [270 mesh],
white 20 kg bucket
No. 1584-1005 90 μm [170 mesh],
white 5 kg canister
No. 1583-1005 110 μm [150 mesh],
white 5 kg canister
No. 1583-1020 110 μm [150 mesh],
white 20 kg bucket
No. 1587-1005 125 μm [115 mesh],
pink 5 kg canister
No. 1587-1020 125 μm [115 mesh],
pink 20 kg bucket
No. 1585-1005 250 μm [60 mesh],
white 5 kg canister
No. 1585-1020 250 μm [60 mesh],
white 20 kg bucket
Rolloblast glass beads
No. 1594-1305 50 μm [400-200 mesh]
5 kg canister
No. 1594-2312 50 μm [400-200 mesh]
12.5 kg canister
No. 1589-1005 100 μm [170-100 mesh]
5 kg canister
15. Troubleshooting Guide
Problem Possible cause Corrective action
No air and no abra-
sive.
• Blasting nozzle
blocked at the hand-
piece.
• Foot switch connecting
lines kinked.
• Switch set to an inter-
mediate position.
• Unscrew the nozzle from the
hand-piece and blow it out.
• With the nozzle removed, blow
out the blasting hose by acti-
vating the foot pedal.
• Inspect/correct the connection
lines.
• Turn the switch until you feel it
click into place.

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Problem Possible cause Corrective action
Only air, no or very
little abrasive.
• The dosage nozzle in
the mixing chamber is
blocked due to conta-
minated or moist sand.
• Wear protective goggles.
• Unscrew tank lid.
• Remove sand.
• Close the uptake tube (blue
tube) in the tank (by bending),
so that no air can escape.
• Hold the sandblasting nozzle on
the handpiece closed with the
other hand.
• Using a setting of 4 to 6 bar
pressure, activate the foot
switch repeatedly in
succession.
• Before re-filling with sand,
check the tank and sandblasting
material for contamination or
moisture. If necessary replace
with new sand.
• Re-fill with sand and secure the
tank lid. (Continue sandblasting
in the usual manner).
Only air, no or very
little abrasive.
• Mixing chamber filter
combination blocked Install new filter sets:
- Part no. 90002-8889 25-70 μm
- Part no. 90002-8888 70-500 μm
(Refer to the insert for the appropri-
ate filter set):
• Disconnect the compressed air
supply to the mixing chamber.
• Unscrew the plug-in connection.
• Remove the old filter sets.
•
Run a thin (1 mm) wire through
the opening in the mixing chamber.
• Install new filter sets as follows
(number of components accor-
ding to the filter set– smooth
(colour marked) side facing the
mixing chamber):
1. Screen
2. Filter, thin
3. Filter, thick
4. Screen
5. Spacer
Reinstall the screw-on connec-
tions in the reverse order.

- 22 -EN
Problem Possible cause Corrective action
Only air, no or very
little abrasive.
• Mixing chamber filter
combination blocked
• Abrasive contains
impurities or is moist.
Make certain their is no abrasive
residue on the threads.
Attention: Never operate the
unit without filters!
Do not reinstall used filter
sets!
• Replace the abrasive.
Unit blasts continu-
ously.
• Foot switch connected
incorrectly.
• Valve in foot switch is
defective.
• Inspect/correct the foot switch
connection.
• Replace foot switch.
Lamp does not go on. • Power cord not
plugged in.
• Fluorescent tube de-
fective.
• Faulty electronics.
• Fluorescent tube not
properly seated in the
socket.
• Plug the power cord into the wall
outlet.
• Replace the fluorescent tube
(refer to Sec. 6.6).
• Call for service to replace the
electronics, or refer to the spare
parts list.
• Refer to Sec. 6.6, “Fluorescent
Lamp Installation”.
Compressed air
leaking from the foot
switch.
• Pneumatic hoses
reversed.
• Reverse the connections.
Foot switch fails to
switch on.
• No pressure at the
compressed air con-
nection.
• Pneumatic hoses are
kinked.
• Inspect the compressed air lines
and/or the compressor.
• Reposition the hoses.
Foot switch hoses
cannot be discon-
nected from the unit.
• Push-in connection is
not released (Fig. 2).
• Press the push-in connection
ring on the hose side firmly while
pulling on the hoses.
Subject to modification.