TOPwave
Operating
43
Seal the pressure vessel hand-tight using the coupling cap. It takes only slight pres-
sure to fixate the rupture disc. The tightness of the vessel is guaranteed by the pres-
sure-assisted sealing lip even at the maximum interior vessel pressure.
1
Rupture disk holder
2
Rupture disk
3
TFM-PTFE lid
4
Cent-ring sleeve
5
Quartz vessel (QX 20/22)
6
PM 60/PL 100
Mount the pressure vessels in the rotor of TOPwave. Seal any unused positions on
the collection vessel with the supplied blind stoppers or with lock screws in order to
ensure the proper operation of the gas removal (see section "Handling of PM 40, PM
60 and PL 100 Pressure Vessels" p. 38).
6.3.3
Handling of pressure vessels CX 100
CAUTION
Rupture discs and pressure vessels!
Observe the safety instructions in the sections "Safety instructions" p. 8 and "Performing
a Digestion Procedure" p. 33.
Never use more than one rupture disc per vessel!
CAUTION
Observe maximum sample quantity!
The maximum sample quantity depends on the vessel type (see section "Technical Data"
p. 71).
Observe minimum fill amount!
In each pressure vessel, at least approx. 7 ml of liquid should be employed so that the
temperature sensor can determine the sample temperature precisely.
The microwave oven requires a certain minimum load of approx. 20 ml of liquid. If lower
volumes of liquid must be used, at least 3 vessels must be used for each run in order to
achieve the required total load.
If the fluid amount employed is too small, the oven may be damaged during longer ope-
ration! An inadequate liquid load can also result in rotor overheating and, in the worst
case, in rotor damage.