CORNING Axygen MotoPet Instrukcja obsługi - Strona 4

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• The pipet controller should not be used for drawing solutions with a temperature above

50°C.

• The pipet controller should be operated in the temperature range from +10°C to +35°C.

• T he 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. Turning On the Pipet Controller

The pipet controller is switched on by pressing the aspiration button (Figure 1A) or the

dispense button (Figure 1B). The display will show the selected aspiration mode, dispense

mode, and the battery level indicator (Figure 2.3). Examples of the display indications are

shown in Figure 5. The battery is discharged and requires charging if the indicator displays

one "bar" (Figure 5.3). When the battery is fully charged, the indicator displays three "bars"

(Figure 5.1). The pipet controller will switch off automatically if not used for 5 minutes.

The pipet controller should be charged only with the original charger.

The main voltage should conform with the specification on the charger.

Charging should be done in accordance with section 8 of this instruction for use.

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 section. Check to ensure the gripping section is dry.

The pipet controller should be gripped as close to the upper end as possible and carefully

inserted into the pipet controller holder until resistance is felt (Figure 3A). Do not apply

excessive force, to prevent damage to thin pipets controller and to avoid injury risk. A pipet

that has been correctly attached and sealed in the holder should not tilt to the side.

After attaching a pipet, hold the device in such a way as to keep the pipet controller in

a vertical position with an attached pipet. When not in use, it is not recommended to leave

the pipet attached for long periods, for example overnight or over a weekend.

Note: Do not rest the pipet controller on the bench if there is liquid in the pipet.

Filling the pipet

Before aspirating is started, set the suction speed switch using the HIGH/LOW switch

(Figure 1C):

• HIGH position: fast aspirating (Figure 2.1)

• LOW position: slow aspirating (Figure 2.2)

It is recommended to choose the LOW position for pipets with a volume up to 5 mL, and

the HIGH position for pipets with a volume greater than 5 mL. Holding the pipet controller

vertically, immerse the pipet end in the liquid to be drawn up (Figure 3B), and press the

aspiration button gently. The pipet filling speed depends on the pressure applied to the

aspirating button. The greater the pressure applied, the faster the liquid is aspirated into

the pipet.

It is recommended to draw a slightly larger liquid volume than required (due to meniscus

above the required volume mark), reducing the aspiration speed, particularly in the final

filling stage, so as not to overfill the pipet.

Setting the Volume

After filling the pipet, the end should be dried with an absorbent paper that will not leave

impurities, in order to remove any excess solution on the outside surface of the pipet.

To set the required liquid volume precisely, press the dispense button gently (Figure 3C),

dispense the excessive liquid from the pipet until the meniscus of the liquid aligns exactly

with the required volume mark on the pipet.

Emptying the Pipet

Holding the vessel in an angled position, place the pipet end in contact with the vessel

wall and press the dispense button gently (Figure 3C). The dispensing intensity may be

adjusted depending on pressure applied to the dispense button. The greater the pressure

applied, the faster the outflow of liquid from the pipet.

The pipet controller has two dispense modes. The dispense mode is selected with the

BLOW/GRAV switch (Figure 1D).

• Gravity mode marked with the

icon on the display (Figure 2.4): Dispensing is effected

in gravity mode, which means that the liquid flows out of the pipet by its own weight.

• Blow out mode marked with the

icon on the display (Figure 2.5): Dispensing is effected

in gravity mode, however, when the dispense button is pressed to the middle position,

the pump is started and fast emptying of the pipet with a blow out is effected.

CAUTION: During gravimetric dispensing the pipet may not be completely emptied due

to the characteristics of pipets used with the pipet controller.

6. Troubleshooting

If during your work the pipet controller is not functioning correctly, check the cause and

correct the fault.

Problem

Possible cause

The pipet holder is dirty or wet

The pipet falls out (the

(Figure 1G).

holding force of the pipet

is too small), or tilts to the

The pipet holder is damaged.

side too much.

The filter is dirty (Figure 1H).

The pump is working, but

the pipet controller aid does

not draw liquid or draws

The pipet holder and/or the

liquid very slowly.

connector gasket is damaged

(Figure 1J).

The pipet is damaged.

The pipet is inserted

Liquid leaks from the pipet

incorrectly.

(the aspiration and the

dispense buttons are not

The pipet holder, the filter, or

pressed)

the connector gasket is installed

incorrectly.

The pipet holder and/or the

connector gasket is damaged

(Figures 1G, 1J).

If the above actions do not remedy the incorrect functioning of the pipet controller, the

device should be sent to the nearest authorized service center.

Action

Take out the pipet holder,

and clean, wash, and dry it.

Replace the pipet holder

with a new one.

Take out the pipet holder, take out

the filter, if it is dirty, replace it

with a new one.

Replace the mechanically

damaged elements with new

ones.

Check the pipet for damage

(cracks, dents) if present, replace

the pipet with a new one.

Check whether the pipet has been

correctly inserted in the pipet

holder.

Check whether all parts are

present and correctly installed.

Replace the mechanically

damaged elements with new

ones.