8 Troubleshooting
50134830_03.2012
25
Thermo Scientific
8 Troubleshooting
If the magnetic shaker does not shake:
♦
Make sure that the control unit (12) is connected to mains.
♦
Make sure that the control line (7) is properly connected.
♦
Make sure that the shaker platform (4) can move freely (e.g. no
contact with other objects or walls).
If the magnetic shaker does not shake when controlled via the
RS232 interface:
♦
Make sure that the frequency selection knob (11) of the control unit
(12) is set to the position OFF.
♦
Make sure that the RS232 interface cable (15) is properly
connected.
♦
Make sure that all RS232 module connecting cables (14) are
properly connected. If one RS232 module connecting cable (14) is
not connected properly, the whole series fails to function.
♦
Make sure that the data transfer between PC/robot and control unit
(12) is functioning correctly.
Another possible source for errors is choosing the wrong port.
If the shaker platform (4) strikes the drive block (5) during
operation:
An irritating noise is generated, the magnetic shaker, however, is not
damaged in any way. When the resonance frequency is reached
during a high shaking power, it may result in such strokes.
♦
Reduce the frequency using the frequency selection knob (11), or
♦
Reduce the shaking power (see Remote operation, Chapter 6).
