Eppendorf XplorerPlus - Manual (Page 8)

Eppendorf Xplorer® (plus) — Operating manual
8
R
Rechargeable
lithium-polymer
battery
This rechargeable battery is a special version of the rechargeable lithium-ion battery. Like
rechargeable lithium-ion batteries, rechargeable lithium-polymer-batteries have a very high
charging capacity and a long service life. The special encapsulation of the rechargeable
lithium-polymer-battery makes it lighter than rechargeable lithium-ion batteries.
Remaining stroke After dispensing steps have been completed, any small quantities of residual liquid as safety
reserves; this liquid will be dispensed as the remaining stroke. You can discard the liquid of the
remaining stroke or reuse it.
Reverse stroke After aspiration, the piston is moved into a defined position. Liquid is dispensed during this piston
movement. The reverse stroke is not a dispensing step.
S
Sterile Sterile is an Eppendorf AG purity level for consumables. In addition to the requirements for
standard goods, e.g., precision, accuracy, wetting behavior and leak tightness, products with the
Sterile purity level also meet the highest standards when it comes to sterility and being
pyrogen-free.
V
Vapor pressure This term refers to the pressure exerted by the vapor of a material (solid or liquid) in an enclosed
container. The vapor is in equilibrium with the solid or liquid phase of the material. The vapor
pressure increases when the temperature increases. Each pure liquid has a vapor pressure of
1013 hPa (mbar) at boiling point. Volume errors caused by high vapor pressure can be reduced
by prewetting the tip.
Viscosity Viscosity describes the viscidity of liquids and suspensions. Dynamic or absolute viscosity is now
usually given in Pa · s or mPa · s. The unit P or cP is frequently found in older literature.
1 mPa · s corresponds to 1 cP.
At room temperature a 50% glycerin solution has a viscosity of approx. 6 mPa · s. As the glycerin
concentration increases, viscosity increases considerably. Absolutely anhydrous glycerin has a
viscosity of approx. 1480 mPa · s at room temperature.
W
Wall dispensing Liquid dispensing during which the pipette tip touches the tube inner wall. We recommend
completing a dispensing series using only the free jet method or wall dispensing method.
1
Operating instructions