Manual

8
2.3 Research, multi-channel, adjustable-volume (variable)
(8- and 12-channel)
The technical data is valid only when the quoted Eppendorf pipette tips are used.
Tests carried out in accordance with ISO 8655 for piston-stroke pipettes with an
air cushion using a fine balance with moisture trap approved by the
standardization authorities.
Note: on the 1 – 10 mL pipette, when the 1 – 10 mL tip, long (see ordering
information) is used, the quoted tolerance range increases by a factor of 2
compared to when the standard tip is used.
Number of determinations:
10; degassed, bidistilled water,
20 °C – 25 °C, constant to ± 0.5 °C; with pre-wetted pipette tip;
dispensing carried out on inner wall of vessel.
If the place where the pipette is used is at extremely high altitude, an adjustment
must be made in line with the ambient air pressure.
The pipettes belonging to the Research Family are piston-stroke pipettes that
operate according to the air-cushion principle.
The Research Family consists of fixed-volume pipettes, adjustable-volume
(variable) pipettes and eight- and twelve-channel pipettes, which also have an
adjustable-volume (variable) setting.
All models belonging to the Research Family have separate tip ejection.
Each channel of the multi-channel model has its own piston, which means that is
possible to attach fewer than eight or twelve tips.
In addition, the lower part can be rotated into a user-defined position as required.
Model Color code epT.I.P.S. Volume Systematic error Random error
µL µL µL % µL % µL
0.5– 10 light gray 0.5– 20 1
5
10
± 8.0
± 4.0
± 2.0
± 0.08
± 0.2
± 0.2
± 5.0
± 2.0
± 1.0
± 0.05
± 0.1
± 0.1
10–100 yellow 2–200 10
50
100
± 3.0
± 1.0
± 0.8
± 0.3
± 0.5
± 0.8
± 2.0
± 0.8
± 0.3
± 0.2
± 0.4
± 0.3
30–300 orange 20–300 30
150
300
± 3.0
± 1.0
± 0.6
± 0.9
± 1.5
± 1.8
± 1.0
± 0.5
± 0.3
± 0.3
± 0.75
± 0.9
3 Function principle
Research – Part A – Sections 2 and 3
2_ResearchE.fm Seite 8 Donnerstag, 17. April 2008 12:31 12