Eppendorf Pipette Reference 2 - Manual (Page 7)

Product description
Eppendorf Reference ® 2
English (EN)
7
2 Product description
2.1 Features
Reference 2 pipettes are piston-stroke pipettes which operate according to the air-cushion principle. For air
cushion pipettes, a suitable pipette tip must be fitted prior to use. The user controls the dispensing, volume
setting and ejector using the control button. When the control button is pressed, the piston in the pipette
moves in the same direction. If the control button and the piston are moved upward, the liquid can be
aspirated into the pipette tip. When the piston is moved downward, the liquid is dispensed (measuring
stroke). Blow-out occurs if the control button is pressed down past the first stop. If the control button is
pressed down again, the pipette tip will be ejected. The tip cone will spring load when a pipette tip is
attached (exceptions: 2
mL to 10 mL pipettes).
The Reference 2 pipettes can be adjusted. A viewing window below the adjustment seal indicates that a
user adjustment has been modified. The user adjustment functions independent of the factory adjustment.
All Reference 2 pipettes are fully autoclavable.
2.1.1 Pipette models
The Reference 2 family consists of single-channel and multi-channel pipettes (8 and 12-channels) with
variable volume settings, and single-channel fixed-volume pipettes. For Reference 2 pipettes with variable
volume settings, the volume can be changed by turning the control button when the volume locking button
is pressed. Volumes from 0.1
μL to 10 mL can be dispensed depending on the model.
A list of all available models is available in the Technical Data.