pHotoFlex
®
Turb
Operation
55
ba75976e07
09/2021
Continuing with
three-point calibra-
tion
(
Calibr. type
TEC
)
13 For two-point calibration, select with
<
V
> <
W
>
Exit with 2 point cal-
ibr.
and confirm with
<START/ENTER>
.
The calibration is completed as a two-point calibration.
The new calibration values are displayed as a piece of information
(
i
).
You have the following options:
Using
<START/ENTER>
, take over the new calibration values.
Subsequently, the calibration record is displayed and output to the
interface at the same time.
Using
<M>
(short pressure) or
<ESC>
, switch to the measured
value display, without taking over the new calibration values.
i
Buffer recognition TEC
i
Immerse sensor in buffer 3
Exit with 2 point calibr.
Continue
pH & ORP
\
Calibration
14 Thoroughly rinse the electrode with distilled water.
15 Immerse the electrode in buffer solution 3.
16 If necessary, measure the temperature of buffer 3 manually and, us-
ing
<
V
> <
W
>
and
<START/ENTER>
, enter and confirm in the
Set
temperature
setting.
17 Using
<
V
> <
W
>
Continue
, highlight and press
<START/ENTER>
.
The buffer is measured.
The measured value is checked for stability (AutoRead).
i
Buffer value =
4.01
i
U = 184 mV
i
Temperature =
24.8°C
Terminate AutoRead
pH & ORP
\
Calibration
