wtw pHotoFlex pH Operating Manual page 41

®
pHotoFlex pH
ba75975e05 10/2017
5 Using <> <> and <START/ENTER>, select and start the
Measure blank value function.
The menu-guided blank value measurement starts.
Follow the instructions on the display.
Measure blank value
i 83: A6/25 MC
i Cell = 16 mm
i Insert blank sample
Start measurement
6 Insert a cell with blank sample (see section 4.2).
7 Start the measurement of the blank value with <START/EN-
TER>.
After measuring, the result of the blank value measurement is
displayed and stored.
The result is displayed as i Blank value measurement
cessful! or i Blank value measurement
Measure blank value
i 83: A6/25 MC
i Cell = 16 mm
i Absorbance = 0.301
i Blank value mea-
surement
successful!
8 Confirm the result with <START/ENTER>.
The blank value measurement is completed.
The meter is ready to measure.
or:
Discard the result with <ESC>.
Subsequently, carry out a new blank value measurement.
Operation
suc-
erroneous!
41