Renfert Basic master 2948 User manual

Bedienungsanleitung
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Basic master
No. 2948
216637_A_06022013
Ideas for dental technology

- 1 - EN
Basic master
No. 2948
ENGLISH
1. Introduction......................................................................................................................... 1
1.1 Employed Symbols................................................................................................ 1
2. Safety .................................................................................................................................... 2
2.1 Intended use.............................................................................................................. 2
2.2 Improper use............................................................................................................. 2
2.3 Environmental conditions for safe operation............................................. 2
2.4 Hazards and warnings.......................................................................................... 2
2.5 Authorised persons................................................................................................ 3
2.6 Liability Exclusion................................................................................................... 3
3. Product description......................................................................................................... 3
3.1 General description................................................................................................ 3
3.2 Components and functional elements.......................................................... 3
3.3 Standard Delivery................................................................................................... 4
3.4 Accessories............................................................................................................... 4
4. Commissioning................................................................................................................. 4
4.1 Installation.................................................................................................................. 4
4.2 Foot switch connection........................................................................................ 4
4.3 Compressed air connection............................................................................... 4
4.4 Electrical connection............................................................................................. 5
4.5 Connection to suction device............................................................................ 5
4.6 Adjusting the Operating Pressure................................................................... 5
4.7 Filling the Sandblasting Tanks.......................................................................... 5
4.7.1 Authorised sandblasting material........................................................................... 5
5. Operation............................................................................................................................. 6
5.1 Blasting Notes.......................................................................................................... 6
5.2 Cold silanization in the sandblasting unit.................................................... 6
6. Cleaning / Maintenance ............................................................................................... 6
6.1 Cleaning the Interior.............................................................................................. 6
6.2 Condensation............................................................................................................ 6
6.3 Blasting Nozzle Replacement........................................................................... 6
6.4 Cleaning the dosing nozzle................................................................................ 6
6.5 Lamp cover................................................................................................................ 7
6.6 Spare Parts................................................................................................................ 7
6.7 Shipping Notes......................................................................................................... 7
7. Trouble shooting .............................................................................................................. 7
 7HFKQLFDO6SHFL¿FDWLRQV............................................................................................... 8
9. Warranty .............................................................................................................................. 8
10.Disposing of the Unit ..................................................................................................... 8
10.1 Information on disposal for countries within the EC........................... 8
1. Introduction
1.1 Employed Symbols
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Danger
This indicates an imminent risk of injury. Please observe the accompanying documents!
Electrical hazard
There is a risk of electrical shock.
Attention
Failure to observe the associated information can result in damage to the unit.
Note
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Attention!
Wear eye protection.
The unit complies with the relevant EC guidelines.
The unit is subject to the EC guidelines 2002/96/EG (WEEE Directive).
Further symbols are described by their uses.
EN

- 2 -
EN
2. Safety
Inform the operator about working procedures, possible operating hazards and actual operation of the unit
with these user instructions.
Ensure that these instructions are available for the operator.
2.1 Intended use
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.
Other areas of use also include divesting press ceramic or sandblasting porcelain occlusal surfaces.
2.2 Improper use
2QO\WKH¿WWLQJVDQGVSDUHSDUWVVXSSOLHGE\5HQIHUWPD\EHXVHGLQWKLVXQLW7KHXVHRIDQ\RWKHU¿WWLQJVLVFRQVLGH-
red improper and carries the risk of severe injuries.
2.3 Environmental conditions for safe operation.
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- 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] *),
- :LWKDPDLQVSRZHUVXSSO\ZKHUHFXUUHQWÀXFWXDWLRQVGRQRWH[FHHGRIWKHQRPLQDOYDOXH
- 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].
2.4 Hazards and warnings
ŹIf the unit is not used according to the instructions for use, then protection can no longer be guaranteed.
ŹThe unit may only be used together with a mains cable with a country speci¿c plug system. If a plug e[-
change is necessary, this may only be undertaken by a skilled electrician.
ŹThe mains plug must be easy to access.
ŹPower supply cords and tubes (e.g. the mains cable) must be checked regularly for damage (e.g. kinks,
cracks, porosity) or aging. Units with damaged power supply cords, tubes or other defects must not be
used.
ŹRisk of Injury!
If unauthorised attachments are used, there is a danger of injury. 2nly original Renfert ¿ttings and acces-
sories may be used.
ŹPlease observe the accident prevention regulations provided by the „employer‘s liability insurance associ-
ation“!
ŹAlways disconnect the unit from the compressed air and power sources prior to beginning any mainte-
nance work.
ŹWhen working on the tank (¿lling up, cleaning, maintenance) wear protective glasses for protecting your
eyes.
ŹAny residue of abrasive material on the gasket may lead to leakage and early wear of the gasket. After
¿lling up clean the thread and the gasket and close the lid properly.
ŹSolvents and tensides can create micro-cracking in the plastic (danger of explosion!). Clean the tank and
the lid only with a dry cloth. Do not write or stick something on the tanks.
ŹDo not unscrew the tank lid as long as the pressure had not been released.
ŹCheck the tanks and the lids regularly on damages and replace them in case of doubt.
ŹCheck 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 resulting Àying parts and abrasive repre-
sent a serious hazard.
ŹNever 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 selected on the basis of the dust
being generated. Follow here absolutely EN 60335-2-69 appendix AA or ask the appropriate authorities.
ŹImproper use can result in the risk of eye or skin injuries.
ŹNever direct the blasting material towards eyes or unprotected areas of skin!
ŹNever work with the view screen open!
ŹCaution: Failure to wear proper eye protection can result in eye injury due to particles suspended in the air.
Always wear proper eye protection to protect your vision!
ŹDo 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.
EN

- 3 - EN
2.5 Authorised persons
This product may only be used by persons over the age of 14. Operation and service may only be carried out by
trained personnel. Repairs which are not described in these instructions may only be carried out by skilled electricians
and the specialist dealers.
2.6 Liability Exclusion
5HQIHUW*PE+VKDOOEHDEVROYHGIURPDOOFODLPVIRUGDPDJHVRUZDUUDQW\LI
ŹThe product is employed for any purposes other than those cited in the operating instructions.
ŹThe product is altered in any way other than those alterations described in the operating instructions.
ŹThe product is repaired by other than an authorized facility or if any but Renfert OEM parts are employed.
ŹThe product continues to be employed, despite obvious safety faults.
ŹIn the case of mechanical impact or if the unit is dropped.
ŹAccessories or consumer products used, which are not supplied or authorised by Renfert GmbH.
3. Product description
3.1 General description
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.
3.2 Components and functional elements
1 Pressure regulator
2 Appliance socket
3 ON/OFF switch
4 Tank lid
5 Pressure gauge
6 Selector switch
7 Protection screen
8 Hand piece
9 Base grid
10 Hand sleeves
11 Compressed air tube
12 Power cord
13 Foot switch
14 Sandblasting tank
15 Air connection
16 Water trap
16a Water trap valve
17 Foot switch connection (A)
18 Foot switch connection (B)
19 Mixing chamber
20 Filter cartridge
21 Suction tube
6
10
2
11
13
1
14
3
8
20
7
45
12
15 16 16a
17
21
18
19
9
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EN

- 4 -
EN
3.3 Standard Delivery
1 Basic master
1 Foot switch
1 Connection set
1 Set of Operating Instructions, with attachment
1 Power cord
3.4 Accessories
Abrasives
Cobra aluminium oxide
1594-1105 25 μm [500 mesh], white 5 kg canister
1594-1205 50 μm [270 mesh], white 5 kg canister
1594-2220 50 μm [270 mesh], white 20 kg bucket
1584-1005 90 μm [170 mesh], white 5 kg canister
1583-1005 110 μm [150 mesh], white 5 kg canister
1583-1020 110 μm [150 mesh], white 20 kg bucket
1587-1005 125 μm [115 mesh], pink 5 kg canister
1587-1020 125 μm [115 mesh], pink 20 kg bucket
1585-1005 250 μm [60 mesh], white 5 kg canister
1585-1020 250 μm [60 mesh], white 20 kg bucket
Rolloblast glass beads
1594-1305 50 μm [400-200 mesh] 5 kg canister
1594-2312 50 μm [400-200 mesh] 12.5 kg canister
1589-1005 100 μm [170-100 mesh] 5 kg canister
Nozzles
Round nozzles
90002-1203 silver 0,4mm [0,0158 inch]
90003-3213 gold 0,65mm [0,0256 inch]
90002-1204 green 0,8mm [0,0315 inch]
90003-3211 blue 1,0mm [0,0394 inch]
90003-3214 red 1,2mm [0,0473 inch]
90002-1205 brown 1,4mm [0,0552 inch]
90002-1206 bronze 2,0mm [0,0788 inch]
Slotted nozzles
90003-1739 light red 1,5x3,5mm [0,0591x0,1379 inch]
4. Commissioning
4.1 Installation
Choose a stable and non-slip surface to stand the unit on.
4.2 Foot switch connection
Remove the foot switch from its shipping location in the blasting chamber.
Insert the end of the tube marked with an „A“ (13) as far as it will go into the tube connection
point also marked with an „A“ (17) on the blasting unit.
Insert the end of the tube marked with an „B“ (13) as far as it will go into the tube connection
point also marked with an „B“ (18) on the blasting unit.
When inserting the tubes you will notice a slight resistance which must be overcome.
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13
17
18
4.3 Compressed air connection
Push the compressed air tube (11) onto the tube connection point (15) as far as it will go. In
doing so there will be a slight resistance to overcome.
To connect to the compressed air system, select the relevant tube coupling from the sup-
plied set and attach this to the other end of the tube.
Attach to the compressed air network.
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11
15
EN

- 5 - EN
4.4 Electrical connection
Ensure that the voltage information on the type plate and the mains voltage are compa-
tible.
Plug the mains cable (12) into the socket (2).
Plug in the mains cable.
12 2
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4.5 Connection to suction device
Plug the suction tube from the extraction unit to the suction pipe.(21).
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ting unit into the user socket on the suction device.
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(21)
4.6 Adjusting the Operating Pressure
Activate the foot switch
Set the sandblasting pressure (1-6 bar /14,5-87 psi) at the pressure regulator (1). The
amount of pressure will be shown on the pressure gauge (5).
4.7 Filling the Sandblasting Tanks
Attention: Never press the foot switch during ¿lling.
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switch is engaged.
$GGDEUDVLYHXSWRWKHPD[LPXP¿OOOHYHO
(the point where the tank jacket thickens just below the thread).
Reinstall the tank cover.
Before closing the tank, be sure to clean the threads in the cover and the tank to remove
any abrasive residue.
Caution: Do not tilt the tank lid when unscrewing.
Always use only clean, dry abrasive of the appropriate grain size (refer to the accessories).
The sandblasting unit is now operational.
4.7.1 Authorised sandblasting material
Cobra (Renfert GmbH)
Rolloblast (Renfert GmbH)
ROCATEC (3M ESPE)
Sandblasting materials from other manufacturers may be used providing the grain size, grain shape and degree of
purity comply with the above mentioned materials.
The company Renfert GmbH assumes no liability for function and durability of the units if other sandblasting material
is used.
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max
EN

- 6 -
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5. Operation
Switch the illumination on (3).
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Take the respective hand piece from the selected blasting tank (see coloured marking).
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5.1 Blasting Notes
)ODWEODVWLQJZLWKZLGHQR]]OHV
90003-1739 1,5 x 3,5 mm [0,059 x 0,138 inch]
When blasting glass ceramics, refer to manufacturer‘s notes.
5.2 Cold silanization in the sandblasting unit
The Basic series of Renfert sandblasting 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:7KHVXUIDFH¿OPLVDSSOLHGFROGSUHYHQWLQJWKHUPDOORDGLQJRIPHWDOIUDPHZRUNVDQGFRQVHTXHQWO\WKH
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6. Cleaning / Maintenance
Before cleaning or servicing:
ŹSwitch off and unplug the device!
ŹDisconnect the appliance from the compressed air supply!
6.1 Cleaning the Interior
Use only solvent-free cleansers (e.g., soapy water).
Remove the grate and vacuum the blasting chamber.
Wipe out the tanks and lids only with a dry cloth!
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6.2 Condensation
Inspect the water separator (16).
Drain any water off through the valve (16a).
6.3 Blasting Nozzle Replacement
For installation see accessory supplement
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16a
16
6.4 Cleaning the dosing nozzle
The dosing nozzle from the mixing chamber can become blocked due to contaminati-
on and moist blasting sand.
For cleaning, the dosing nozzle is removed using the supplied tool and replaced after
cleaning.
Vacuum clean the blasting tank completely.
+ROGWKHGRVLQJQR]]OHZLWKWKHWRRODQGSXOOXSZDUGV¿J
Clean the dosing nozzle (e.g. blow with compressed air).
Replace dosing nozzle.
Before remounting, the dosing nozzle should be completely dry!
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EN

- 7 - EN
6.5 Lamp cover
In the course of time, the lamp cover can become matt. This cover can be ordered as a spare part.
6.6 Spare Parts
For the order numbers of consumables and spare parts please refer to the spare parts list at the end of this manual.
Serial number, production date and unit version can all be found on the unit‘s type plate.
6.7 Shipping Notes
Empty all blasting tanks.
Order Renfert transport packaging (Tel. [phone])
The return form can be downloaded from the „Advice“ section on the Renfert website at www.renfert.com.
7. Trouble shooting
Problem Possible cause Corrective action
No air and no abrasive.  %ODVWLQJQR]]OHEORFNHGDWWKHKDQG
piece.
 )RRWVZLWFKFRQQHFWLQJOLQHVNLQNHG
 7DQNVHOHFWLRQVZLWFKLQDQLQWHUPHGLDWH
position.
 8QVFUHZWKHQR]]OHIURPWKHKDQGSLHFH
and blow it out.
 :LWKWKHQR]]OHUHPRYHGEORZRXWWKH
blasting hose by activating the foot
pedal.
 ,QVSHFWFRUUHFWWKHFRQQHFWLRQOLQHV
 7XUQWKHVZLWFKXQWLO\RXIHHOLWFOLFNLQWR
place.
Only air, no or very little
abrasive.
 7KHGRVDJHQR]]OHLQWKHPL[LQJFKDP-
ber is blocked due to contaminated or
moist sand.
 &OHDQLQJWKHGRVLQJQR]]OH
see chapter 6.4
Only air, no or very little
abrasive.
 0L[LQJFKDPEHU¿OWHUFRPELQDWLRQEOR-
cked.
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 &KDQJH¿OWHUFDUWULGJH¿J
(Wrench SW14)
 5HSODFHWKHDEUDVLYH
Unit blasts continuously.  )RRWVZLWFKFRQQHFWHGLQFRUUHFWO\
 9DOYHLQIRRWVZLWFKLVGHIHFWLYH
 ,QVSHFWFRUUHFWWKHIRRWVZLWFKFRQQHF-
tion.
 5HSODFHIRRWVZLWFK
Lamp is not alight.  3RZHUFRUGQRWSOXJJHGLQ
 ,OOXPLQDWLRQGHIHFW
 3OXJWKHSRZHUFRUGLQWRWKHZDOORXWOHW
 &KDQJHOLJKWXVLQJWKHVHUYLFHRUVHH
spare part list.
Compressed air leaking from
the foot switch.
 3QHXPDWLFKRVHVUHYHUVHG  5HYHUVHWKHFRQQHFWLRQV
Foot switch fails to switch
on.
 1RSUHVVXUHDWWKHFRPSUHVVHGDLUFRQ-
nection.
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 ,QVSHFWWKHFRPSUHVVHGDLUOLQHVDQGRU
the compressor.
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Foot switch hoses cannot be
disconnected from the unit.
 3XVKLQFRQQHFWLRQLVQRWUHOHDVHG
(Fig. 2).
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WKHKRVHVLGH¿UPO\ZKLOHSXOOLQJRQWKH
hoses.
EN

- 8 -
EN
. Technical Speci¿cations
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9ROWDJH 9+]
100-120 V, 50/60 Hz
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We reserve the right to make technical change
9. Warranty
Provided the unit is properly used, Renfert warrants all parts of the Basic master for a period of 3 years. In case of
any claims for warranty original dealers‘ invoice is required.
Parts which are subject to natural wear and tear such as consumer products are excluded from the guarantee (e.g.
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The warranty is voided in case of improper use; failure to observe the operating, cleaning, maintenance, and con-
nection instructions; in case of independent repairs or repairs by unauthorized personnel; if spare parts from other
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instructions. Warranty service shall not extend the original warranty.
10. Disposing of the Unit
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health-hazardous residues in the unit.
10.1 Information on disposal for countries within the EC
To conserve and protect the environment, 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 disposal please apply at your local authorities.
EN