Hettich ROTINA 420, Инструкции по ремонту

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Action Display / Comment
4. Press the
T/°C
key so
often until the
following will be
displayed:
→
e.g.
Imb Xa= 0 Ya= 1 Xm= 1 Ym= 3
Xa = actual X-value in per cent of the imbalance
sensor.
Ya = actual Y-value in per cent of the imbalance
sensor.
Xm = maximum X-value in per cent of the imbalance
sensor.
Ym = maximum Y-value in per cent of the imbalance
sensor.
5. To exit the inquiry
press the
STOP / OPEN
key.
→
e.g.
6 20 9 9 4000 5:20
Display of the centrifugation data.
6. Press the
STOP / OPEN
key.
The centrifugation run is terminated.
6.15.3 Setting the imbalance switch-off
A change of the imbalance switch-off affects all rotors.
The imbalance switch-off is specified by the indication of the difference in weight of
opposite rotor positions.
In the factory the imbalance switch-off will be adjusted with rotor 4723.
With swing-out rotors all rotor positions must be lined with
identical
hangers.
By a test run with empty rotor, and that for the rotor specified switch-off weight in one
rotor place the imbalance switch-off is checked, see following table.
With the switch-off weight specified for the rotor the drive must absolutely
switch off during the run-up.
Switch-off weights of the different rotors:
Rotor Switch-off weight
4758 25 g
4754 25 g
4753 25 g
4723 30 g
4760 6 g
4790 6 g
4794 15 g
4795 15 g