Manual

7
Operating instructions
Multipette
®
/Repeater
®
(X)stream
English (EN)
F
Free jet dispensing
Dispensing the liquid without the Combitip touching the tube inner wall. If a drip forms
on the Combitip after free jet dispensing, this drip always belongs to the next dispensing
step. We recommend completing a dispensing series using only the free jet method or
wall dispensing method. Complete the reverse stroke in accordance with the dispensing
series using either the free jet or wall dispensing method. Errors listed in the technical
data were determined using the wall dispensing method.
I
Increment
Step size or resolution. For instance, when selecting the volume for a 10 mL Combitip, the
volume can be increased or reduced in 0.01 mL steps.
ISO 8655
The ISO 8655 standard defines limiting values for systematic errors [accuracy], random
errors [precision]) and the test methods for dispensing devices.
N
Nominal volume
The maximum dispensing volume of a Combitip in conjunction with the selected
dispensing device. The term "nominal volume" comes from the ISO 8655 standard.
P
PhysioCare Concept®
Products that carry the Eppendorf PhysioCare Concept logo feature optimized
ergonomics and make operation as simple as possible, even with complex dispensing
tasks. PhysioCare products can be easily serviced and cleaned. They are made of
extremely light materials and require minimal operating force.
Positive displacement principle
The liquid comes into direct contact with the Combitip piston during aspiration and
dispensing. Unlike with a pipette, the liquid and piston are not separated by an air
cushion. A little air bubble is visible at the piston during dispensing.
R
Rechargeable lithium-ion battery
Rechargeable lithium-ion batteries have a very high charging capacity and long service
life.
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.