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Thermo Fisher Scientific

Mechanical Emergency Door Release

Issue

  • 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.

Environment

Multifuge X Pro-Megafuge ST Plus Centrifuge Series:

Laboratory Use Centrifuges In Vitro Diagnostic Centrifuges
Catalog No. Benchtop Centrifuge Catalog No. Benchtop Centrifuge
75009900 Multifuge X4 Pro 208-240 V ±10%, 50 / 60 Hz 75009500 Multifuge X4 Pro-MD 208-240 V ±10%, 50 / 60 Hz
75009901 Multifuge X4 Pro 120 V ±10%, 60 Hz 75009501 Multifuge X4 Pro-MD 120 V ±10%, 60 Hz
75009915 Multifuge X4R Pro 220-240 V ±10%, 50 Hz / 230 V ±10%, 60 Hz 75009515 Multifuge X4R Pro-MD 220-240 V ±10%, 50 Hz / 230 V ±10%, 60 Hz
75009815 Multifuge X4R Pro 220 V ±10%, 60 Hz 75009615 Multifuge X4R Pro-MD 220 V ±10%, 60 Hz
75009916 Multifuge X4R Pro 120 V ±10%, 60 Hz 75009516 Multifuge X4R Pro-MD 120 V ±10%, 60 Hz
75009903 Megafuge ST4 Plus 208-240 V ±10%, 50 / 60 Hz 75009503 Megafuge ST4 Plus-MD 208-240 V ±10%, 50 / 60 Hz
75009904 Megafuge ST4 Plus 120 V ±10%, 60 Hz 75009504 Megafuge ST4 Plus-MD 120 V ±10%, 60 Hz
75009918 Megafuge ST4R Plus 220-240 V ±10%, 50 Hz / 230 V ±10%, 60 Hz 75009518 Megafuge ST4R Plus-MD 220-240 V ±10%, 50 Hz / 230 V ±10%, 60 Hz

Resolution

  1. Wait until the rotor has stopped. This can take longer than 40 minutes.
  2. Pull out the power supply plug.
  3. On the back side of the housing there are two plastic plugs. You can pry these plugs out of the back plate with a screwdriver.
  4. Pull the release cord attached to trigger the mechanical lid release. The lid will open and the samples can be removed.
    NOTICE: You need to pull both cords in order to unlock both locks.
  5. Push the cord(s) back into the centrifuge and mount the plug(s).
  6. Reconnect the centrifuge once the power has been restored.
  7. Switch on the centrifuge.
  8. Press the OPEN key to have the door locks operative again.
    BE ADVISED: If you pull only one cord or you did not press the OPEN key to have the door locks operative again, the door might open while the rotor is still spinning. 

WARNING: Serious injuries can occur if you touch a spinning rotor with your hands or tools:

  • A rotor can still be spinning after a power failure occurs.
  • Do not open the centrifuge before the rotor has stopped spinning.
  • Do not touch a spinning rotor.
  • Never use your hands or tools to stop a spinning rotor.