Gerhardt Vapodest 50s carousel - Page 43

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Vapodest 50s carousel
8 Create a method (Programming)
- Addition H
3
BO
3
The diaphragm of the electrode must be completely immersed in the receiving
solution, so that a stable pH- measurement is ensured.
Setting range 0 - 999 ml
- Online-Titration
When an online-titration is done, then the titration is already done during the
distillation. Thus the entire time needed for the analysis is reduced. In the
on-line-titration mode, you have to enter the pH – difference to the end point,
which you are titrating to during the distillation. The difference is titrated after
the distillation is nished.
Delta pH = pH-Difference
- Plausibility criteria (for the blank value)
If a sample is measured as a blind value, the result is valued according to
these criteria and the series of analysis is interrupted with an error message
if necessary.
Setting range 0 to max. 1 ml (Additional amount Triersäur
- Measuring unit sample
In the program a selection is done, whether the calculation is done in weight
or volume.
- Calculation of results
Select the units desired, which should be calculated later on. If you select
protein, then you also have to enter the protein factor. All units shown can be
combined in any way. For the calculation of the units also see formula sheet
in the attachment.
"Formula"
A free denition of the unit (name) incl. factor is possible in the eld ‘Formula’.
This formula is calculated as follows:
- Standard – Tolerance range
If you work with one standard during the series, then you can set a tolerance
range for the result. If the result goes below this range or if it is exceeded there
will be an error message during the analysis and in the print out of the result.
There is the option of selecting 3 different standards with various contents.
Press key "Store", to store the program created under the program name selec-
ted.
You can print out the program parameter for checking and documentation purpo-
ses. In order to do so, press key "Print preview", or, if you want to print without
preview, key "Print".
Press key "Close", to close the window create a method
Factor x Acid concentration x (Consumption [ml] - Blank value [ml])
Weight [g]
Result weight =
Factor x Acid concentration x (Consumption [ml] - Blank value [ml])
Volume [ml]
Result volume =