20
ba15362d04
12/2021
Aging
NO 800
Aging
Please note that every electrode undergoes a natural aging process. The re-
sponse time increases and the slope decreases with the age of the electrode.
The following factors shorten the lifetime considerably:
Incorrect storage
Special measuring conditions (e.g. organic solutions, frequent measure-
ment with high concentrations of interfering ions)
High temperatures and high temperature changes
The warranty does not cover damage caused by measuring conditions and
mechanical damage.
Maintenance
Combination electrodes:
Refill any used up bridge electrolyte.
Install an exchange membrane cap.
NOTE
Never pull the connection cable of the electrode.
The cable might be damaged.
Storage
Between two
measurements
Condition the electrode in standard solution.
Overnight
Rinse the combination electrode with deionized water and dry it. Then put on
the storage vessel and store the electrode upright.
Longer than over-
night
Remove the bridge electrolyte, then rinse the combination electrode with
deionized water and dab it dry with a clean paper towel. Store the combi-
nation electrode in the storage vessel in a dry place. For the following
measurement, prepare the combination electrode as described in section
C
.
ClO
4
-
I
-
ClO
3
-
CN
-
Br
-
NO
2
-
HS
-
HCO
3
-
1x10
-4
0.005
0.05
0.1
0.7
0.7
1
10
CO
3
2-
Cl
-
H
2
PO
4
-
HPO
4
2-
PO
4
3-
OAc
-
F
-
SO
4
2-
20
30
50
50
50
200
600
1000
Summary of Contents for wtw NO 800 DIN
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Page 14: ...14 ba15362d04 12 2021 Kalibrierkurve einer Nitrat selektiven Elektrode NO 800...
Page 15: ...OPERATING MANUAL ba15362d04 12 2021 NO 800 DIN NITRATE SENSITIVE ELECTRODE OPERATING MANUAL...
Page 16: ...ba15362d04 12 2021 NO 800 Copyright 2021 Xylem Analytics Germany GmbH...
Page 23: ...NO 800 What to do if ba15362d04 12 2021 23 Cable length Plug DIN plug 1 m...
Page 24: ...24 ba15362d04 12 2021 What to do if NO 800...
Page 25: ...MODE D EMPLOI ba15362f04 12 2021 NO 800 DIN LECTRODE S LECTIVE DE NITRATE MODE D EMPLOI...
Page 26: ...ba15362f04 12 2021 NO 800 Copyright 2021 Xylem Analytics Germany GmbH...
Page 34: ...34 ba15362f04 12 2021 Courbe de calibration d une lectrode s lective de nitrate NO 800...
Page 36: ...ba15362s04 12 2021 NO 800 Copyright 2021 Xylem Analytics Germany GmbH...
Page 44: ...44 ba15362s04 12 2021 Especificaciones t cnicas NO 800...
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