ProLab 2000
Operation
53
ba75577e03
11/2009
Preparatory activities
Perform the following preparatory activities when you want to measure:
Note
While no valid calibration is available, e.g. in the delivery condition,
"Error" appears in the measured value display.
4.6.2
Measuring
the ion concentration
Stability control
The Stability control function checks the stability of the measurement
signal. The stability has a considerable impact on the reproducibility of
measured values. The display of the measured parameter flashes until
a stable measured value is available.
Independent of the setting for automatic
Stability control
in the
System
menu, you can start the
Stability control
function
manually at any time.
1
Connect the ISE combination electrode to the meter.
The pH/ISE measuring window is displayed.
2
If necessary, select the ISE display (unit, mg/l) with
<MODE>
.
3
Measure the temperature of the test sample using a
thermometer.
4
Calibrate or check the meter with the electrode.
1
Perform the preparatory activities according to page 52.
2
Immerse the electrode in the test sample.
ISE
0.157
mg/l
25
°C
1
If necessary, select a channel (measured value) with
<
▲
><
▼
>.