Buchi Syncore, Operation Manual

Page: 37 / 46

Syncore
Platform
37
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6 Maintenance
6.5 Error messages: Calibration
Whenever the progress of the calibration is interrupted by
an error, „End“ appears in the temperature display and the
perti nent error number appears in the time display. These
errors (unlike technical malfunctions of the unit) can be de-
leted again by pressing a button.
The following error messages are possible in the calibration
mode:
Error No. Description Cause
50 Heating plate too hot. The temperature of the heating plate was above 40 °C
at the start
51 Temp. reference >200 °C No reference sensor or interruption
52 Too much time 50°C was not reached within 20 minutes.
53 Correction too large Difference between internal and external sensors at
50°C >
±
2 °C
54 Measurement not stable Temperature is not stable at 50 °C.
55 Too much time 100 °C was not reached within 20 minutes.
56 Correction too large Difference between internal and external sensors at
100°C > ± 2°C
57 Measurement not stable Temperature is not stable at 100 °C
58 Too much time 150 °C was not reached within 20 minutes.
59 Correction too large Difference between the internal and external sensors
at 150 °C > ± 2°C
60 Measurement not stable Temperature is not stable at 150 °C.
Table 9: Error messages during calibration
The calibration process must be restarted after an error message. Whenever repeated messages make it impossible to
complete the calibration, notify your service agent.
6.6 Replacement of the fuses
The fuses for the Syncore single Platform (220-240 V:
10.0 AT 250 V; 120 V: 16.0 AT 250 V; 100 V: 15.0 AT 250
V) and the fuses for the heater of the vacuum cover (T
3.15A L250V) are located on the back of the unit.
Before replacing defective fuses, check that the voltage of
the power system agrees with that shown on the nameplate
of the unit. It is always necessary to check both fuses and
to replace them if necessary.
A frequent blowing of fuses may indicate the presence of a
technical defect. Please contact your BUCHI service agent.
• Disconnect the apparatus from the power source
• Remove the fuse holders
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with a screwdriver
• Replace defective fuses
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with others of the same type.
• Replace the fuse holders
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Figure 30: Checking / Changing Fuses