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2.2 Hazards and safety notes
Caution!
In order to ensure risk-free operation the following notes must be observed and fully
complied with:
! Do not set up furnace and vacuum pump in the immediate vicinity of heat sources.
! The current consumption of the vacuum pump should not be more than 2.5 A. The muffle
and pump power are added and can lead to overload of the equipment fuse.
! The distance to the nearest wall should be at least 25 to 30 cm.
! The area where you set up the Multimat
®
Touch should be non flammable. There should
be no combustible items in the vicinity.
! Set up the vacuum pump in a well ventilated place. In case of an oil-lubricated vacuum
pump, it should be always located at a lower level than the furnace. The one way valve
on the vacuum hose must be placed higher than the pump.
! Do not touch any parts which may become hot during operation; in particular do not
touch the cover.
! Before switching on this unit, ensure that the operating voltage specified on the
equipment corresponds to your mains voltage.
! For 220/230 V please use the power cord H05VV-F 361,0 with grounded mains plug ST
30 D and grounded cord connector.
! For 100-127 V please use the power cord STJ 3x18AWG 105 °C with grounded mains
plug USA NEMA 5-15 P and grounded cord connector.
! In case of a furnace with press function, the pressure shown on the pressure regulator of
2.7 bar must be maintained (even during regular vacuum firing).The air pressure should
always refer to air pressure mentioned on the sign beside the compressed air
connection.
! On first-time operation, after any extended standstill as well as at a high level of humidity
or low temperatures, it may no longer be possible to generate a sufficient vacuum. In
such cases start program # 376.
! If the furnace is under vacuum for an extended period, the O-ring of the firing platform
may adhere or stick slightly.
! At the start of the firing muffle heating process, there may be an occurrence of vibration
noise from the heater winding.
! In case of low voltage the temperature heat rate will be slower.
! Only use original replacement parts.
Warning!
! This unit may be connected only to a 16 A slow fused plug with a protective contact and
a differential-current circuit breaker 30 mA.
! Disconnect the unit from mains whenever service and repair work is carried out.
! Repairs on an opened unit when connected to the mains are only to be carried out by
trained personnel.
! At least once a year a protective ground wire test has to be performed by a specialist.
! Following any and all repair work, a high voltage and protective ground wire test is to be
carried out.
! If any defects or damage occur such that safe operation is no longer ensured, the unit
must be secured against any unintentional use.
! Do not change the position of the belt tension screw located on the rear column plate.
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