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Making a measurement
To fill the syringe:
1.
2.
3.
Hydro 2000µP
Insert the syringe into the vessel of dispersant.
Draw back the syringe very slowly. Pulling back too quickly will cause "boil-
ing" on the surface of the syringe plunger (see the diagram below) or air may
be dragged back through the syringe seal.
Syringe
Hold the syringe with the tip pointing upwards, and push the plunger in to dis-
place any air (as shown below). It may be necessary to tap the body of the
syringe to displace any air bubbles.
i
Note
Avoid having to refill the syringe half way through filling the cell, as dis-
connecting and reconnecting the syringe may introduce air into the cell.
When filling the standard 20ml syringe, fully draw back the plunger to take
up enough dispersant to fill the cell (its approximate capacity is 18ml).
Chapter 4
Syringe plunger
"Boiling"
Syringe body
ill 5640
ill 5641
Page 4-7
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