Eppendorf Maxipettor 4720 - Manual (Page 8)

Safety
Varipette
® 4720
English (EN)
8
Dispensing volume 2.50 to 10.00 mL. The long Maxitip can be used to remove liquid
from high and narrow-necked vessels (diameter = 10 mm, fitting measuring flasks with
standard 12/21 ground joint). The liquid will only enter the Maxitip. As a result, the
samples or reagents can be dispensed consecutively without entrainment by changing
the Maxitip.
The valve that can be inserted to the tip of the Maxitip S reduces the risks associated
with transmitting aggressive or toxic solutions, or liquids with radioactive or
pathogenic components.
You can use an adapter for storing the Varipette in the pipette carousel 3115 or the pipette
carousel 4923.
2.4 Areas of application for the Varitips
Varitip P and Varitip S complement each other in their function.
Please refer to the following table for the recommended areas of application:
2.4.1 Materials
The pistons inside the Varitip S and Varitip P are made of polyethylene (PE).
The cylinder of the Varitips, the Maxitips and the Maxitip valve (both of which for
Varitip S) are made of polypropylene (PP).
3 Safety
3.1 Intended use
The Eppendorf Varipette 4720 is intended for dispensing liquids. In-vivo applications (in
or on the human body) are not allowed.
The Eppendorf Varipette 4720 may only be operated by trained specialists. All users must
read the operating manual carefully and must have become familiar with the device's
mode of operation.
Varitip P Varitip S
aqueous solutions + +
extraction of liquids from deep receptacles – +
organic liquids (alcohols, org. acids, etc.) + +
solvents with high vapor pressure (e.g. diethyl
ether) – +
high density liquids + +
viscose liquids + –