
Mai ntenance
55
Replace the syringe plunger tip
Introduction
The plunger tip forms a seal with the syringe glass. The tip spins along with the syringe
glass while the metal plunger itself remains stationary. As the plunger drives titrant out of
the syringe glass, plunger tip wear can occur. Too much wear can result in poor data. If
left unreplaced, the metal plunger can break through the worn plunger tip.
Replace the plunger tip every 300 experiments or at the first sign of wear.
To replace the syringe plunger tip, follow the instruction video and/or the software
guided workflow integrated in the MicroCal PEAQ-ITC Control Software.
Note
: Instrument connection is required to replace the syringe plunger tip.
The Change Plunger Tip workflow
The software guided The Change Plunger Tip workflow is divided into the following
steps:
Stage
Description
1
Move Pipette to Clean Location
2
Move Pipette to Load Location
3
Remove Syringe Glass and Plunger Tip
4
Install Plunger Tip
5
Install Syringe Glass
Move the pipette to the Clean Location
To move the pipette to the Clean Location, follow the instruction video and/or the soft-
ware guided workflow integrated in the MicroCal PEAQ-ITC Control Software.
The software guided workflow is also shown in the following table.
Step
Action
1
Move the pipette partway into the Clean Location.
2
Grasp the rotating assembly of the pipette with one hand, and remove the steel retain-