Version 06/2007, Rev. 1.15 of 16/09/2011 - sb
page 27 of 75
Translation of the original operating manual
5.1.6
Safety Devices
Apart from the mentioned passive safety devices due to the solid design, the
following active precautions are in place for your safety:
5.1.6.1 Lid Lock and Lid Closing Device
The centrifuge can only be started when the lid is properly closed. The electrical
locks must be locked. The lid can only be opened when the rotor has stopped. If
the lid is opened by way of the emergency release system during operation, the
centrifuge will immediately switch off and decelerate brakeless. If the lid is open,
the drive is completely separated from the mains power supply, i.e. the centrifuge
cannot be started (see 6.2.5 "Emergency Lid Release", page 44).
5.1.6.2 Standstill Monitoring
Opening of the centrifuge lid is only possible if the rotor is at a standstill. This
standstill is checked by the microprocessor.
5.1.6.3 System Check
An internal system check monitors the data transfer and sensor signals with
regard to plausibility. Errors are detected with extreme sensitivity and displayed
as error messages with a number on the speed and rcf display (see 6.2.6 "Error
Codes", page 45).
5.1.6.4 Ground Wire Check
For the ground wire check, there is an equipotential bonding screw on the rear
panel of the centrifuge. A ground wire check can be carried out by authorized and
specialized personnel using a suitable measuring instrument (see 4.2.2
"Connection“, page 23). Please contact the head of our service team (see 6.2.7
"Service Contact", page 46).
5.1.6.5 Imbalance Monitoring System
The "Imbalance" display may light up or emit a sound signal (see 5.3.8
“Activating/Deactivating the Sound Signal”, page 42) in order to indicate that the
centrifuge is in the inadmissible imbalance range. If the rotor is loaded unevenly,
the drive will be switched off in the acceleration phase or during the run. The
message "Imbalance" and the error number 46 for "Imbalance“ will then flash on
the display. The lid opens automatically after the rotor has come to a standstill. In
both cases, loading has to be checked and balanced.
