6 – LABNET LABPETTE FX PIPETTORS
7. Operating Instructions
Observing the following recommendations will ensure
maximum possible accuracy and precision of liquid sampling.
• During operation, the volume setting should be locked,
with black adjustment knob in the lower position.
• Ensure smooth and slow operation of the pipettor.
• Immersion of the tip into the sample liquid should be
kept to a minimum depth, which should remain constant
during aspiration. The recommended immersion depths
are given in the table below:
Model Volume Range (µL)
Immersion Depth (mm)
0.1-1
≤1
1-100
2-3
101-1,000
2-4
• The pipettor should be held in a vertical position.
• The pipet tip should be changed whenever the volume
setting is altered, and when a different liquid is to be
aspirated.
• The pipet tip should be changed if a droplet remains on
the end of the tip from the previous pipetting operation.
• Each new pipet tip should be pre-rinsed with the liquid to
be pipetted.
• Liquid should never enter the pipettor shaft. To prevent this:
– Press and release the pushbutton slowly and smoothly.
– Never turn the pipettor upside down.
– Never lay the pipettor on its side when there is liquid in
the tip.
• Never force the volume setting beyond the recommended
limits.
• When pipetting liquids with a different temperature from
the ambient temperature, it is recommended to pre-rinse
the tip several times prior to use.
• Do not pipettor liquids with temperatures above 70°C.
NOTE:
When pipetting acids or corrosive solutions which
emit vapors, it is recommended to disassemble the shaft
and rinse the plunger and O-ring with distilled water after
finishing the pipetting operation.
