Centrifuge GT 4 / 4R
Troubleshooting | 19
Troubleshooting
Mechanical Emergency
Door Release
During a power failure, you will not be able to open the
centrifuge lid with the regular electric lid release. A mechanical
override is provided to allow sample recovery in the case of an
emergency. However, this should be used only in
emergencies and after the rotor has come to a complete stop.
Always wait for few minutes until the rotor has come to a stop
without braking. The brake does not work when there is no
current. The braking process lasts much longer than usual.
Proceed as follows:
1. Make sure the rotor has stopped (view port in the lid).
2. Pull out the power supply plug.
3. Pry out the two black plastic plug (available on the back
of housing) from the back plate with a screwdriver or a
knife.
Pull the release cord attached to it at the same time to
trigger the mechanical lid release. The lid will open and
the samples can be removed.
Figure 6. Emergency door release
Note:
You need to pull both levers in order to unlock both
locks.
4. Push the cord back into the centrifuge and mount the
plug.
5. Reconnect the centrifuge once the power has been
restored. Switch on the centrifuge. Press the OPEN key
to have the door locks operative again.
Pry out the two black plastic plug (available on the back of
housing) from the back plate with a screwdriver or a knife.
WARNING:
The rotor can still be spinning at high
speed. If touched, it can cause serious injuries.
WARNING:
Never use your hand or other tools
to brake the rotor.
Emergency Door Release
WARNING:
If you pull only one lever or you do
not pressed the OPEN key
to have the door
locks operative again, the door might open while
the rotor is still spinning.
OPEN
OPEN
