RADIOMETER ABL800 FLEX Reference Manual

1. Potentiometric measuring principles ABL800 FLEX Reference Manual
Electrolyte electrodes, Continued
Sensitivity
The sensitivity of the electrolyte electrodes is calculated from the following
equations:
K electrode
Sens(K)
E(K,Cal1) E(K,Cal2)
61.5 log
K(Cal1)
K(Cal2
(fraction)
+
=
−
×
+
c
c
)
Na electrode
Sens(Na)
E(Na,Cal1) E(Na,Cal2)
61.5 log
Na (Cal1)
N(Cal2
(fraction)
+
=
−
×
+
c
ca
)
Ca electrode
Sens(Ca)
E(Ca,Cal1) E(Ca,Cal2)
30 log
Ca (Cal1)
Ca (Cal2
(fraction)
2+
2+
=
−
×
.
)
75
c
c
Cl electrode
Sens(Cl)
E(Cl,Cal1) E(Cl,Cal2)
-61.5 log
Cl (Cal1)
Cl (Cal2
(fraction)=
−
×
−
−
c
c
)
The sensitivity limits of the electrolyte electrodes are as follows:
Electrode Sensitivity Limits
K 92 - 105 %
Na 90 - 105 %
Ca 90 - 105 %
Cl 85 - 105 %
Status
The status of each of the electrolyte electrode is calculated from the following
equations:
K electrode
(Cal1)K
nom)(Cal1,K01
Status(K)
2
61.5
Cal1)(K,ECal1)E(K,
0
+
+
−
×
=
c
c
mmol/L
Na electrode
(Cal1)N
nom)(Cal1,N01
Status(Na)
2
61.5
Cal1)(Na,ECal1)E(Na,
0
+
+
−
×
=
ac
ac
mmol/L
Continued on next page
1-26

RADIOMETER ABL800 FLEX Specifications

General

Brand	RADIOMETER
Model	ABL800 FLEX
Category	Measuring Instruments
Language	English