Biosan Assistboy, Manual

Page: 5 / 35

6
7 - REPLACING THE FILTER
Note:
The work safety instructions given in section 2 shall be observed when disassembling
the pipette controller.
The filter replacement is necessary, if drawing efficiency deterioration is observed.
The direct reason may be dirty filter after a long period of use.
The procedure is shown in (fig. 4).
• Remove the pipette.
• Unscrew the nosepiece (fig. 4A).
• Remove the membrane filter (fig. 4A) and the pipette holder (fig. 4B).
• Blow liquid out of the holder and leave it until it is completely dry.
• Install new membrane filter (fig. 4D) and assemble the device in reverse order.
8 - CHARGING THE BATTERY
The Assistboy may be charged only with the original charger. The mains voltage must
conform with the specification on the charger.
Using other chargers than the original one may damage the battery of the pipette con-
troller.
Charging the battery in the Assistboy pipette controller is controlled by a time circuit, which con-
trols the entire process. When the battery has been charged, the charging circuit discon-
nects automatically.
Charging:
1. Charging temperature: 10°C to 35°C.
2. Charging the battery is carried out through a charger (power supply) by direct connection
to the mains, or indirectly by means of a charging stand (fig. 1M). Every Assistboy
is supplied with a charger and a charging stand. Battery charging is indicated by successive
lighting of “bars” in the display order 4-3-2-1-4-3-2-1 (fig. 5).
3. Full charging time: 11-14 hours.
4. The full battery level is indicated by displaying three ''bars” which shine continuously (fig. 5.1).
The pipette controller has a NiMH type battery with a capacity of 2000 mAh.
The service life of the battery: approx. 1000 charging cycles, if used correctly. It is not possible
to overcharge the battery, if all instructions of the manufacturer are followed.
Note:
Charging shall not be interrupted. If the charging process is interrupted, the next
charging may take place after the battery has been completely discharged.
ENGLISH
5
If the above actions do not remedy the incorrect functioning of the pipette controller, the
device shall be sent to authorised service centre.
If any manufacturing defects are discovered by the Customer, an unsatisfactory equipment
claim must be compiled, certified and sent to the local distributor address. To obtain the
claim form, visit section Technical support on our website.
Action Possible cause Problem
Take the pipette out of the holder.
Disassemble the pipette holder
and check for mechanical
damage.
Clean, wash and dry the pipette
holder. The pipette holder is dirty
or wet (fig. 1G). The pipette falls out (the
holding force of the pipette
is to small), or tilts to the
side too much.
If the holder is damaged, replace
it with a new one. The pipette holder is dam-
aged.
Take the pipette out of the holder.
Disassemble the pipette holder.
Take out the filter - check it for
impurities - if it is dirty, replace it
with a new one. The filter is dirty (fig. 1H). The pump is working, but
the pipette controller does
not draw liquid or draws
liquid very slowly.
Check the pipette holder and the
connector gasket for mechanical
damage - if there is a damage,
replace the damaged part with
a new one. The pipette holder
and/or the connector gas-
ket is damaged (fig. 1K).
Check the pipette for damage
- cracks, dents - if present, repla -
ce the pipette with a new one. The pipette is damaged. Liquid leaks from the
pipette (the aspiration
and the dispense buttons
are not pressed)
Check whether the pipette has
been correctly inserted in the
holder. The pipette is inserted
incorrectly.
Check whether all parts are pre -
sent and correctly installed. The pipette holder, the filter,
or the connector gasket
is installed incorrectly.
Check the pipette holder and the
connector gasket for mechanical
damage - if there is damage,
replace the damaged part with
a new one. The pipette holder and/or
the connector gasket is
damaged (fig.1G, fig. 1K).