Intended Use; Improper Use; Environmental Conditions For Safe Operation; Hazards And Warnings - Renfert Basic classic Instrucciones Para El Servicio

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

Only spare parts and accessories supplied or authorized by Renfert GmbH may be used with this product. If other
spare parts or accessories are used, this could have a detrimental effect on the safety of the device, increase the risk
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of serious injury and lead to damage to the environment or the device itself.
2.3

Environmental conditions for safe operation

Safe operation of this unit can be guaranteed under the following conditions:
- 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 current 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].
2.4

Hazards and warnings

► If the unit is not used according to the instructions for use, then protection can no longer be guaranteed.
► The unit may only be used together with a mains cable with a country specific plug system. If a plug ex-
change is necessary, this may only be undertaken by a skilled electrician.
► The mains plug must be easy to access.
► Check connection cables (e.g. power cable), tubes and housing (e.g. operating key pad) regularly for dama-
ge (e.g. kinks, cracks, porosity) or aging. Appliances with damaged connection cables, tubes or housing
parts or other defects must no longer be operated! Remove the power cable and secure against being
switched on again!
► Risk of Injury!
If unauthorised attachments are used, there is a danger of injury. Only original Renfert fittings and acces-
sories may be used.
► Please observe the accident prevention regulations provided by the „employer's liability insurance associ-
ation"!
► Always disconnect the unit from the compressed air and power sources prior to beginning any mainte-
nance work.
► When working on the tank (filling up, cleaning, maintenance) wear protective glasses for protecting your
eyes.
► 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.
► DO NOT use solvent-containing cleaning agents or disinfectants.
► Solvents 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.
► Do not unscrew the tank lid as long as the pressure had not been released
► Check the tanks and the lids regularly 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 resulting 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 selected 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 suspended 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.
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