Ammonium
Ammonium
78
BA61101/08.00/IWa/MLP5-E2
BA61101/08.00/IWa/MLP5-E2
79
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.
Ãmeth.
Âmenu
ÀCal
ÁpH
25.4°C
AR TP
Position 10: pH menu.
mV
Âmeas.
14697 Äa-Ten
¡pH
Method change.
ISE F
Âmeas.
mV
¡ISE N
ISE N
= Select
Ammonium (NH
4
-N)
measurement.
Ãmeth.
Âmenu
ÁNH¿-N
25.4°C
TP
ÀCal
Enter NH
4
-N menu.
Ã
ISE CAL NH¿-N
25.4°C
È
C1= 10.00m¥/L
Select calibration.
Ã
ISE CAL NH¿-N
25.4°C
Ï
C1=009. 0m¥/L
Enter concentration of the
first standard solution.
: Select figure
: Set figure.
Rinse electrode and temperature probe and immerse
into first standard solution.
ÃC2
ISE CAL NH¿-N
25.4°C
C1= 9.70 m¥/L
U1= - 80.4mV
Start measurement. Wait
for stable test values.
Ã
ISE CAL NH¿-N
25.4°C
É
C2= 00.00m¥/L
Enter concentration of the
second standard solution.
: Select figure
: Set figure.
Rinse electrode and temperature probe and immerse
into second standard solution.
ÃCalDat
ISE CAL NH¿-N
25.4°C
C2= 95.00m¥/L
U2= - 139.1mV
Start measurement. Wait
for stable test values.
Содержание MultiLab P5
Страница 2: ......
Страница 12: ......
Страница 56: ......
Страница 96: ......
Страница 201: ...Configuration BA61101 08 00 IWA MLP5 E2 201 meas A 360nm Aref new filter description...
Страница 242: ...Technical data 242 BA61101 08 00 IPro MLP5 E3 Test certificate EMC...
Страница 244: ......