inoLab pH/ION 735
Operation
31
Note
For
single-point calibration
, the instrument uses the Nernst slope
(-59.16 mV/pH at 25 °C) and determines the asymmetry of the
electrode.
5
Select
Continue
with
82
and press
g
. The buffer is mea-
sured.
The measured value is checked for stability (AutoRead).
6
Wait for the end of the AutoRead measurement or accept the
calibration value with
g
.
The calibration display for the next buffer appears.
7
For single-point calibration, select
Exit with one point calibra-
tion
with
82
and confirm with
g
.
The calibration is completed as a single-point calibration.
The new calibration values are displayed as a message (
i
).
You have the following options:
!
Accept the new calibration values with
g
. Subsequently,
the calibration record is displayed and output to the interface
at the same time.
!
To switch to the measured value display without accepting
the new calibration values, press
m
or
#
.
i
Buffer value =
7.000
i
U = 3.0 mV
i
Temperature =
24.8 °C
Terminate AutoRead
Displayed:
– Recognized nominal buffer
value (referring to 25 °C)
– current electrode voltage
– current temperature value
pH <CAL>
i
Buffer recognition
TEC
i
Immerse sensor in buffer 2
Exit with one point calibration
Continue
pH <CAL>
