BUCHI Syncor Polyvap - Manual (Page 37)

Syncore ® Accessories
version E 35
Setting up
Among others, the reflux module/flushback module con-
sists of two metal plates with recesses for the individual
test tubes.
The two metal plates can be pushed against one another.
They hold the test tubes via horizontal shear action and
cool the test tubes in a defined zone through contact with
an actively cooled metallic surface. The module is held with
both hands as illustrated and led over the reaction vessels
from the top. The slide handle is pressed downward, so
that the two metal plates of the module, release the opening
for the reaction vessel.
You should check visually to make sure that all reaction
vessels are in the opening and that they are cooled.
Cooling medium
Only water or water-containing cooling media should be
used (example: alcohol – water mixtures). All tubes are to
be secured with tube safeties.
Depending on the solvent, or volatile reagents, respec-
tively, the temperature of the cooling medium must be
adjusted. The reflux/flushback module is specified for a
temperature range between 0°C and room temperature
(30°C). You should not cool to below 0°C because water
will condense.
Set the cooling medium flow to approximately 1 liter/minute
(maximum 2 liters/min.).
The distance between the reflux module/flushback module
a and the rack (between cold and warm zone) can be
varied (from 40 to 20 mm) by removing the upper element
of the distance piece b. Thus, the threaded Syncore Ana-
lyst tubes with the following order numbers can be used:
11056498, 11056499, 11056910, 11056911.
The distance piece also provides insulation between the
rack and the reflux/flushback module. A more direct contact
would reduce the efficiency of the system.
Figure 45: Setting up the reflux module
Figure 46: Modification of the flushback/reflux module
for the use with the new Syncore Analyst
tubes
3 Function,putting into operation, operation and maintenace
a
b
a
b