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DOSING
P
Um
P Pr
Im
E Pr
OCEDU
rE
13. DOSING PUMP PRIME PROCEDURE
Prime cycle should be performed:
• if there is no titrant in the tip
• whenever the dosing system tubes are replaced
• whenever a new bottle of titrant is used
• before starting a pump calibration
• before starting a series of titrations
The prime cycle is used to fill the syringe before starting a set of titrations.
Two rinse cycles of the syringe are shown in the figure below. The dispensing tube is connected to the
top of the valve and the aspiration tube on the left side.
Note:
The aspiration tube must be inserted in the titrant bottle. The dosing tip must be placed
over a rinse beaker.
• To prime the burette, select
Prime
option from Titration mode.
• Adjust the rinses number by pressing the
ARROW
keys and press
Start
.