Maintenance TOPwave
68
refer to Maintenance + Ser-
vice
Temperature already shows
values >80° C after program
starts
Temperature measurement
faulty
Defect on the temperature
sensor
Highly exothermal reaction
Contact Service
Observe waiting period after
adding acid
Signals at unoccupied positi-
ons
Wrong number of vessels
configured
Check and set number of
vessels prior to start
Program stops during the
start phase “Turntable Error”
Vessels put in incorrectly
Decoder defective
Motor defective
Put in vessels correctly
Contact Service
Contact Service
Fault Possible cause Corrective action
Vessels leak Locking lid is not firmly
enough in place on the di-
gestion vessel
Dilate lip seal of the locking
lid more; if damaged, re-
place
Refer to Operation
Rupture disc trigger
frequently
Corroded burst disk
Turntable function faulty
Sample quantity too big
Spontaneous reaction
Temperature measurement
defective
Replace Rupture disc more
frequently
Check turntable function
Reduce weighing-in quantity
Reduce maximum tempera-
ture
Contact Service
Rupture disc trigger
frequently
(applies to RPM pressure-
gauge caps only)
Indicated pressure too low Check glass prism and glass
ring in the pressure-gauge
cap
Readjust pressure gauge
(Maintenance + Service)
You can obtain technical support from your regional dealer or directly from Analytik
Jena.
Please provide your unit’s serial number with all repair questions or repair orders. The
serial number is located on the nameplate.
8.4 Fuse replacement
The unit is protected by two 12.5 AT fuses.
Remove the power cord. The mains plug and the fuse holder form a single unit and
are located on the right side of the device. The holder contains two fuses.
Using a screwdriver, turn the plastic screw counterclockwise until it pops out.
The fuse holder can now be removed for fuse replacement.
Insert a new fuse in the plastic screw and reinstall the screw in the fuse holder. Use a
screwdriver to tighten the screw by turning it clockwise.
Pressure digestion vessel
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