Logging The Results - Xylem SI Analytics AVS 370 Manual De Instrucciones

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The metering speed must be adapted to the viscosity of the solvent!
If the metering speed is too high, the burette can be damaged. The preset value of 30 may only
exclusively be used for solvents like acetone, ethanol or petroleum spirit. For solvents with a higher
viscosity, the value for "Dosing speed [s]" must be doubled to at least 60, the metering speed must be
reduced accordingly. If the metering speed is not reduced, the burette can be damaged! A high
damage risk is especially present, if aggressive solvents such as sulphuric acid or dichloroacetic acid
are used.
Filling speed [s]
Indicate the time in second which is required to fill the burette from the storage bottle.
The value 30 is preset. If this value is increased, the fill speed will decrease.
If the fill speed is too high, there will be air bubbles in the burette!
The value of 30 for "Filling speed [s]" can only be used for low-viscosity solvents like acetone, ethanol
or petroleum spirit.
Discharge time [s]
Indicate the suction time in second. The value is the time during which the suction pump is turned on,
after you click on the button "discharge" in the "Method/Results" tab in "AVS-Center". The suction time
is also used for rinsing with solvents by means of burettes (Rinse button), as the sample is suctioned
first at the beginning of the rinse cycle.
The parameter "discharing time" does not affect the time used to rinse with the next sample.
This time is created by the parameter "sucking time" under "System/Maintenance" -> "Hardware".
Drying time [s]
In order to dry the capillary viscometer after rinsing with solvents, the running time of the suction pump
is extended after the suctioning of the last solvent fill by the set drying time. This will suction airflow
through the viscometer, which makes the solvents evaporate. The drying time must be selected to be
long enough for the solvent residue to evaporate completely. The drying time depends on the volatility
of the solvent and the viscometer used (suction via suction pipe or suction hose in the fill pipe).
4.9

Logging the results

The protocol file (see  Section 4.7.1) contains all data per measurement rig (method, measurement
values, standard parameters, formulae, results, viscometers, etc). This file is stored in the ASCII-CSV
format, individual fields are separated by a semicolon ";".
After each measurement, a new data set is attached to the file. The log file can be opened with any
text editor. In most cases, the use of the table calculating program Excel seems easiest and clearest.
To open this program, click on the menu item "Excel" in the main menu. You can also open other
programs in WinVisco370 instead of Excel (see  Section 4.12).
Independent of the log file, all measurement results are saved as PDF files in reports in the folder
"Report' in the installation directory by default. These reports can also be printed on a printer. Only the
data shown on the screen will be printed. If the check box "Printer profile" is activated, there will be a
report printed at the end of a measurement.