Operation
ProLab 2000
50
ba75577e03
11/2009
Continuing with three-
point to five-point
calibration
(
Buffer
NIST/DIN
)
12
Wait for the measurement with stability control to be completed
or
Terminate stability control
with
<MENU/OK>
and accept the
calibration value.
The calibration display for the next buffer appears.
13
For two-point calibration, select
Exit with 2 point calibration
with
<
▲
><
▼
> and confirm with
<MENU/OK>
.
The calibration is completed as a two-point calibration.
The new calibration values are displayed as a message (
i
).
You have the following options:
z
Accept the new calibration values with
<MENU/OK>
.
Subsequently, the calibration record is displayed and
downloaded to the interface at the same time.
z
To switch to the measured value display without accepting
the new calibration values, press
<MODE>
or
<ESC>
.
i
Buffer value =
9.18
i
U = -167.0 mV
i
Temperature =
24.8 °C
Terminate stability control
pH <CAL>
i
Buffer series
NIST/DIN
i
Immerse sensor in buffer 3
Exit with 2 point calibration
Continue
pH <CAL>
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,
then enter and confirm it with
<
▲
><
▼
> and
<MENU/OK>
in the
Set temperature
setting.
17
Select
Continue
with
<
▲
><
▼
> and press
<MENU/OK>
. The
buffer is measured.
The measured value is checked for stability (Stability control).