Avs-Center" - Rinsing Parameters - Xylem SI Analytics AVS 370 Manual De Instrucciones

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„AVS-Center" - Rinsing parameters

4.8
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The AVS 370 can be configured for rinsing with the next sample or for rinsing with solvents. In the
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second case, the rinsing solvent is filled into the viscometers using burettes (e.g. TITRONIC
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universal, TITRONIC 300, TITRONIC 500) by SI Analytics . For this, a fill funnel will be used that has
two threaded connections to connect max. 2 burettes per measuring point.
If you select the "Rinsing Parameters" tab in "AVS-Center" the window "Rinsing Parameters" will open
(see Fig. 12). The rinse parameters are used to parameterize the rinse sequence.
When rinsing with solvents, one or two rinsing solvents can be used. Here, one or two burettes must
be connected to each measuring point for this. The solvents must be adapted to the application:
Solvent 1 must loosen the sample residue in the viscometer. Solvent 2 must remove the residue of
solvent 1 and must be sufficiently volatile to be able to completely remove all solvent residues during
the subsequent drying process. In some cases, the solvent used in the first step is already sufficiently
volatile to be able to skip the second solvent. The following applies to those cases:
If you only use one solvent, the burette(s) must be connected as solvent 2 via the address
assignment (see  Section 3.4).
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Fig. 12 AVS -Center, Rinsing parameters
Number of rising
This parameter indicates how often the respective solvent was refilled for rinsing.
Cleaning/Rinse
The value indicates how often the viscometer fill (solvent) used for rinsing was pumped into the
measuring volume. Usually, a value of 1 or 2 is sufficient.
Volume [ml]
Indicates the volume of solvent metered by the burette for one rinse process.
Dosing speed [s]
Is a measure for the metering/dosing speed of the respective solvent? Indicates the time required to
meter the content of a 50 ml burette cylinder. The value 30 is preset, according to a metering/dosing
speed of 100 ml/min.