NAVI F-52 - Page 207

Chapter 15 Maintenance and troubleshooting
15.1 Maintenance
194 HORIBA
● Before use
Before using an electrode, condition the electrode according to the following table, to prepare
it for measurement.
● Short-term storage
Immerse electrode in the following solutions, when they are to be stored for up to one day and
then reused.
Ion electrode Conditioning agent Time
Cl
-
ion electrode
No conditioning
F
-
ion electrode
NO
3
-
ion electrode
1 mol/L potassium nitrate
solution (100 g/L KNO
3
)
Approx.
1 h
K
+
ion electrode
0.1 mol/L potassium chloride
solution (75 g/L KCl)
Approx.
12 h
Ca
2+
ion electrode
Tap water Approx.
3 h
NH
3
ammonia elec-
trode
No conditioning
Ion electrode Storage solution
Cl
-
ion electrode
de-ionized water
F
-
ion electrode
NO
3
-
ion electrode
1 mol/L potassium nitrate solution
(100 g/L KNO
3
)
K
+
ion electrode
0.1 mol/L potassium chloride solu-
tion (75 g/L KCl)
Ca
2+
ion electrode
Tap water
NH
3
ammonia elec-
trode
0.01 mol/L ammonium chloride
solution