Labnet Spectrafuge 24D Digital Microcentrifuge - Manual (Page 8)

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4.2 Closing the lid
Close the centrifuge lid. The Spectrafuge 24D has a lid lock that activates only when a
run is started.
4.3 Lid release
The lid will remain locked during a centrifuge run. Once the run has been completed and
the rotor has come to a stop, a beep will indicate the end of a run, and the lid will unlock
automatically.
WARNING: Do not attempt to open the lid of any centrifuge until the rotor has
come to a complete stop.
In the event of a power failure or malfunction, it may be necessary to open the lid
manually.
1. Disconnect the power cord from the wall socket.
2. Remove the plastic plug, located on the left side of the unit.
3. Pull the wire (attached to the plug) to open the lid lock manually.
4.4 Lid lock
The centrifuge can be started only with the lid securely closed. When a run is started, the
lid lock automatically activates. Do not attempt to open the lid during a centrifuge run. At
the end of the run, the lid will automatically unlock.
Never attempt to override the lid lock mechanism. Doing so is dangerous and could
damage the centrifuge
4.5 Speed selection (see Figure 2.)
The speed (rpm or g-force) can be selected from 500 to 13,300 rpm in 100 rpm
increments or from 100 to 16,300 x g with the knob on the right. “g-force” or “rpm”
display is set by pressing the knob. Turn the knob to increase or decrease the value.
4.6 Selection of operating time, momentary operation,
Start/Stop
Operating time can be selected from 0.5 min to 30 min by turning the timer knob on the
left. The time can be set in 0.5 minute increments from 0 to 10 minutes and in 1 minute
increments from 10 to 30 minutes. After 30 minutes, the display shows “--” which
indicates continuous run. In this mode, the centriufge will run until manually stopped. To
start a run, press the timer knob.
When the preselected time expires, the centrifuge will stop automatically. To stop the
centrifuge prior to the expiration of set time, press the timer knob.
The centrifuge may be operated for a short run by pressing and holding the timer knob.
The centrifuge will continue to run as long as the timer knob is depressed and the time, in
seconds will count up on the time display.