Operation
pHotoFlex
®
Turb
60
ba75976e07
09/2021
Preparing the cali-
bration
Perform the following preparatory activities when you want to calibrate:
Carrying out cali-
bration
1 Keep the cells with the required calibration standards ready and
mark them as necessary (see page 56).
2 Clean the cell (see section 5.2.2).
3 Insert the cell (see section 4.2).
CAUTION
Never open the cells with the calibration standards!
1 Press the
<M>
key (long pressure) repeatedly until the
Turbidity
mea-
suring mode is selected.
2 Press the
<CAL/ZERO>
key.
The menu-guided calibration starts.
Follow the instructions on the display.
3 Insert the cell with the displayed calibration standard (here e.g. 1000
NTU/FNU) in the cell shaft (see section 4.2).
i
Insert standard
1000 FNU/NTU
i
Press and hold <START>
i
Align sample
Turbidity \ Calibration