Priming The Instrument - BRAND Titrette Mode D'emploi

6.
Priming the
instrument
a) Ensure that the screw cap for the
titrating tube is screwed on firmly.
b) Turn the valve in the direction of the
arrow to 'Recirculate' (Fig. b).
c) Use the hand wheels to lower the
piston completely, then raise it to fill
the instrument about half-way and
then empty it again (Fig. c).
Then use a half rotation of the hand
wheel to take up liquid several times,
each time using a single stroke to
the lower position to empty it into the
bottle. Repeat this procedure 5 times
until no more large bubbles are seen
below the piston.
Note:
A few bubbles up to 1 mm in size are
permissible.
d) Unscrew the screw cap from the
titrating tube.
e) Turn the valve to 'Titrate' (Fig. e).
f) Hold a suitable receiving vessel under
the opening and dispense liquid to
prime the titrating tube until it is
bubble-free (Fig. f). Wipe away any
remaining drops from the titrating
tube tip.
First Steps
b
c
e
f
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