Ammonium Measurement; Calibration Of The Ammonium Electrode - wtw MultiLab P5 Operation Manual

Calibration of the ammonium electrode*

*
e. g. WTW electrode NH500/2
Basic adjustment without calibration.
Two-point calibration without temperature compensation.
From two pairs of values the instrument calculates the axial intercept
and the slope of the characteristics.
Basis of the calculation is the Nernst equation U=U0+Slg(c).
The temperature difference between calibration and sample solution
should not exceed 2 K. The displayed temperature only has a control
function.
78
Âmenu
ÀCal
25.4°C
ÁpH
Ãmeth.
AR TP
Âmeas.
14697 Äa-Ten
¡pH
mV
Âmeas.
mV
¡ISE N
ISE F
Âmenu
ÀCal
25.4°C
ÁNH¿-N
Ãmeth.
Ammonium
Position 10: pH menu.
Method change.
ISE N
Ammonium (NH
measurement.
Enter NH
TP
BA61101/08.00/IWa/MLP5-E2
= Select
-N)
4
-N menu.
4