Troubleshooting - Biohit Midi Pro Manual Del Operador

Cleaning
Before cleaning disconnect from the mains charger. Do not clean the mains charger.
The Midi Pro can be cleaned with most common laboratory disinfectants. The silicone pipette holder (9)
can be autoclaved.
To remove the nosecone and pipette holder turn the nosecone anti-clockwise. When the nosecone is
removed the silicone pipette holder can also be disengaged from the filter by gently turning.
The hydrophobic filter (8) will require occasional replacement when wetted by the liquid and whenever
suction capacity is slowing.
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Midi Pro
Operator Instructions
Pipetting
To aspirate
1 Carefully hold the pipette and insert it securely into the polypropylene nose cone and silicone holder.
2 Select mode of operation–High, Low, for blowout pipettes. 'G' for 'to deliver'.
3 Depress upper trigger (1) (The harder the pipetting triggers are pressed the faster the
aspiration.)
To dispense
1 In BLOW-OUT mode, (mode switch on high or low) depress the lower trigger (2) (The harder the
pipetting triggers are pressed, the faster the dispense).
2 If 'G' gravity mode is chosen, the upper aspirate trigger automatically operates at low speed while
the lower trigger opens the pipette to atmosphere, allowing liquid to run out.
WARNING!
Please ensure that no liquid enters the instrument. The Midi Pro should never be used without the filter
(8). The filter also prevents liquid from entering the instrument. Where liquid has entered please clean
and replace filter.
Trouble Shooting
The Midi Pro is virtually service-free. If the recommendations below do not resolve the problem, please
contact your authorized dealer.
TROUBLE POSSIBLE CAUSE
Filter blocked, dirty or damaged
Suction capacity slow
Batteries low
Pipette not securely positioned
in silicone pipette holder
Pipette drips
Pipette holder or pipette damaged
Note
When the meniscus level has been reached liquid should not drip out of the pipette. If the pipette does
drip, check that the adaptor assembly and filter are correctly assembled and the pipette is properly
located into the silicone pipette holder.
Midi Pro
REMEDY
Clean or replace
membrane filter
Recharge
Re-attach
Replace
Operator Instructions
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