Amann Girrbach 178740-STM, Руководство пользователя

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I N S T A L L A T I O N
E N
Requirements for the protection-gas supply
For operation, the protective gas must fulfil the
following minimum requirements:
_
Argon 4.6 (or higher) from commercially availa-
ble cylinders (preferably 20 l)
_
Cylinder pressure 200 bar/2900 psi
5.8 Compressed-air connection
To provide operation with air cooling, the furnace
must be connected to the compressed-air supply.
Requirements for the compressed-air supply
For operation, the compressed air must fulfil the
following minimum requirements:
_
Flow rate: 100 l/min (3.54 CFM)
_
Pressure: 6 bar (87 psi)
Requirements on air purity:
_
Solid contaminants: Class 3;
better than 5

m for solids
_
Water content: Class 4;
Max. pressure dew point +3
°C
_
Total oil content: Class 2;
Max. oil content 0.1 mg/m
3
Establishing the compressed-air connection
▷
Insert the compressed-air hose to the stop into
the service unit.
Fig. 20
▷
Connect the other end of the compressed-air
hose with the compressed-air connection in the
laboratory.
When the left-hand manometer pointer
points to 0 or below, the cylinder is empty
and must be exchanged. The cylinder then
only holds a residual pressure of approx.
5 bar/72.5 psi, which may no longer be
used for the sintering. The furnace is
equipped with a compressed-air and pro-
tective-gas monitoring feature. When
there is no pressure on the gas side, the
furnace interrupts the sintering procedure
or the program will not start.