Xylem ProLab 2000 - Manual (Page 54)

Operation ProLab 2000
54 ba75577e05 11/2013
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 (see page 35)
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 53.
2 Immerse the electrode in the test sample.
ISE
0.157
mg/l
25
°C
1 If necessary, select a channel (measured value) with <
▲><▼>.