Limitations Of Use; Switching On; Aspirating And Dispensing Liquids - CORNING Stripettor Ultra Manual De Instrucciones

3. Limitations of use

• The pipet controller shall not be used for measuring substances with vapours of which
damage the following plastics: PP, SI, EPDM, POM.
• The pipet controller shall not be used in an environment where explosion risk is present.
• Flammable liquids shall not be measured – in particular substances with flash-point below
0°C (ether, acetone).
• The pipet controller shall not be used for drawing acids with a concentration above
1 mol/L.
• The pipet controller shall not be used for drawing solutions with a temperature
above 50°C.
• The pipet controller may work in temperature range from +10°C to +35°C.
The pipet controller is suitable for general laboratory use only. It must be used only by
personnel who know the health risks associated with the substances that are normally
used with this instrument.

4. Switching on

The pipet controller is switched on by pressing any of the buttons (Figure 1A, B, C, D).
The display will show the selected aspiration mode, dispense mode and the batteries
level indicator. Examples of the display indications are shown in (Figure 5). The batteries
are discharged and require charging if the indicator does not display "bars" (Figure 5.4).
When the batteries are fully charged, the indicator displays three "bars" (Figure 5.1).
• The pipet controller switches off automatically if not used for 5 minutes.
• The pipet controller may be charged only with the original charger.
• The mains voltage shall conform with the specification on the charger.
• Charging shall be done in accordance with section 8 of the instruction manual.

5. Aspirating and dispensing liquids

Attaching a pipet
CAUTION: Before attaching a pipet, check whether the pipet is not damaged, has no dents
or sharp edges in the gripping part. Check whether the gripping part is dry.
The pipet shall be gripped as close to the upper end as possible and carefully inserted into
the pipet holder until resistance is noticed (Figure 3A).
WARNING!
Do not apply excessive force so as not to damage thin pipets and avoid risk of injury.
A pipet that has been correctly attached and sealed in the holder should not tilt to the sides.
After attaching a pipet, hold the pipet controller in a vertical position. It is not recommended
to leave the device with a pipet attached for a longer period, for example overnight or over
a weekend.
CAUTION: Do not put aside the pipet controller if there is liquid in the pipet.
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