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DOSING PUMP INSTALLATION
To install dosing pump follow the procedure below:
• Extend the plunger on the 5 mL syringe to its maximum volume.
• Place the syringe in the dedicated spot on the top of the meter
(1)
.
• Arrange the bottom of the syringe into the holder on the pump
(2)
. Once the syringe is in place
lower the barrel until it sits flush on the holder.
• Put the o-ring and syringe-fixing nut over the syringe
(3)
and turn clockwise to secure it in place
(4)
.
• Place the valve on the top of the syringe
(5)
. Ensure it fits securely.
• Insert the aspiration tube into the left side of the valve
(6)
and replace the titrant bottle cap with
the attached cap
(7)
.
• Insert the dispensing tube into the top of the valve
(8)
.
DOSING PUMP PRIME PROCEDURE
Prime cycle should be performed:
• if you notice 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 rinses cycles of 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.
