Kendro SORVALL Biofuge primo, Operating Instructions Manual

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Operation
34
Selecting the run time
You can select a run time between 1 min and 9 h 59
min or continuous operation (hLd).
Preselected run time
To set a fixed run time, proceed as follows:
1. Press one of the "set" keys
(for an increase) or
(for a decrease) in the "time" section of the con-
trol panel once to switch from the actual to the set-
point mode.
2. By briefly pressing the input key you can now raise
or lower the run time in
1-minute steps.
3. If you keep the selected key pressed, the display
changes at first slowly and after a few seconds at
an accelerated pace.
4. Release the key as soon as you have reached the
desired value, and fine tune if necessary by repeat-
edly pressing the key.
The minute display flashes for a number of sec-
onds, then changes to permanent display. The run
time is now stored.
You may shift the flashing cursor to set the value as
described under "Selecting the speed".
Continuous operation
To switch the Biofuge primo to the continuous mode,
you must press the key until the display reads
"hLd".
With this setting, the centrifuge keeps running until
stopped manually.
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