BUCHI Syncor Polyvap - Manual (Page 25)

Syncore ® Accessories
version E 23
To ensure a quick warming of the vacuum connection, the
vortex drive should not be switched ON. A flashing in the
display „Actual“ indicates that the heater for the vacuum
connection is ON. This display keeps flashing until the set-
point temperature for the vacuum connection has been
reached. As soon as the „Start“ button is activated, the
display stays lit with a constant light.
Handling (General)
The vacuum connection consists of one basic part made of
coated aluminum, plus sealing discs, sealing rings, sealing
nipples, and a glass plate. The aluminum plate has a coating
of PFA. that is absolutely resistant to chemicals.
This chemically resistant coating must not become dama-
ged due to the contact with hard or pointed objects. If
this protective coating becomes damaged, the aluminum
will be attacked by solvents and chemicals. All vacuum
connections must always be stored on a soft base.
The sealing discs seal the individual sample tubes off vacu-
um-tight. Damaged or fouled sealing discs can be replaced
easily. Before putting the vacuum connection into use,
check that the sealing discs are clean and intact.
The sealing discs must not be handled with sharp or poin-
ted objects. It is not permissible to use any sample tubes
that have sharp edges that could cause damage to the
sealing discs.
Replacement of sealing discs
(R-4, R-6, R-12, R-24, R-96)
The sealing discs a can easily be replaced using a broad
screwdriver.
To do this, carefully unscrew the screw caps b made of
PEEK from the vacuum plate. The sealing discs c can
now be removed. If necessary, the silicone shims under
the vacuum connections can likewise be replaced after the
new sealing discs have been put in place, carefully screw
the screw caps of PEEK back in. Screw the screw caps
in carefully.
To avoid damaging the screw caps and the threads for
them in the vacuum connection, the screw caps must be
set down straight on the thread when screwing them in.
The force required to screw the screw caps in is approxi-
mately the same for all caps.
Whenever the screw clamps jam while being screwed in,
stop.
Screw the screw caps back out and screw them in again.
Whenever the sealing discs have been replaced, recheck
the vacuum connection for leaks. Figure 26: Sealing discs: Fastening to the vacuum connection
Figure 25: Sealing discs: Fastening to the vacuum connection
a
b
c
a b c
3 Function,putting into operation, operation and maintenace