Fisher Scientific accuSpin 3, Руководство по эксплуатации

Страница: 43 / 82

Operation
39
Selecting the temperature
You can select the temperature in the range of -9 °C to
+40 °C.
(Please consult the standard diagram in the Appendix
to obtain the attainable values.)
To adjust the temperature, proceed as follows:
1. Press one of the "set" keys (for an increase) or
(for a decrease) in the "temperature" section of
the control 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°
steps.
3. If you keep the selected key pressed, the display
changes continuously slowly at first and then at ac-
celerated paces up or down.
4. Release the key as soon as you have reached the
desired value, and adjust if necessary by repeatedly
pressing the key.
The temperature display flashes for a number of sec-
onds, then changes to the current value display. The
temperature set point is now stored.
Pretemp function
The Pretemp function permits easy and quick pre-
temperature-regulation of the empty rotor.
Upon calling this function by pressing the key , all
you have to do is enter the desired temperature.
After actuating the start key , the rotor is pre-
tempered with an optimum rotational speed set by the
pre-temperature-function.
The actually achieved temperature change in the pre-
temperature run time depends on the rotor used and
the ambient temperature. Occasionally multiple pre-
temperature runs are necessary to achieve the desired
rotor temperature.