wtw pHotoFlex STD, Руководство пользователя

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pHotoFlex
®
STD Operation
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ba75958e07 11/2020
The Timer function is started in the Configuration / Timer menu by entering a
time interval.
4.5.11 Measuring diluted samples
If the concentration of a test sample exceeds the measuring range of a meth-
od, you can dilute the sample by a factor 1 ... 99 so that the concentration of
the diluted test sample is within the measuring range of the method (see pho-
tometry analysis manual). Thus a valid measurement is possible.
After entering the factor for the dilution the meter converts the concentration
to that of the undiluted sample.
The display then indicates the measured value of the undiluted sample.
Entering the fac-
tor of the dilution
The entered dilution factor is only valid for the selected program. The dilution
factor is erased if

the photometer is switched off

a different program number is selected

the factor 0 is entered in the Dilution menu.
If a dilution factor is active, it is indicated on the display during measurement
1 Select the program for which a dilution factor is to be entered.
2 Open the menu Configuration / Photometry / Dilution .
The current factor of the dilution is displayed.
3 Open the display for the entry of numerals with <START/ENTER> .
4 Enter the factor of the dilution with the number keys.
The factor has to be a whole number between 0 ... 99.
5 Confirm the factor with <START/ENTER> .
6 Exit the Dilution menu with <ESC> .
For the following measurements with the selected program, the con-
centration of the undiluted sampled is displayed as the measurement
result.
Water + sample 0 + 1
i
83: A6/25 MC
Dilution