Metrohm 6.00402.300, Руководство пользователя

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Preparing the dAg ring electrode ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
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4 Installation
4.1 Preparing the dAg ring electrode
1 Filling with reference electrolyte
Open the closure of the filler opening (1- 3 ) and, if necessary, fill ref-
erence electrolyte up to the filler opening.
2 Cleaning the electrode
￭
Rinse the electrode with distilled water.
￭
If there is excess contamination on the metal ring, clean it with a
moist towel and toothpaste or with the polishing set
(6.2802.000).
￭
If necessary, use a suitable solvent to degrease the electrode.
NOTICE
The electrode should be rinsed before each measurement.
Frequent abrasive cleaning is not recommended.
3 Cleaning a diaphragm that is clogged with silver chloride
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Close the filler opening (1- 3 ) .
￭
Immerse the electrode in a concentrated ammonia solution or 7%
thiourea solution in 0.1 mol/L of HCl for approximately 2 hours.
￭
Rinse the electrode with distilled water.
￭
Refill with 1 mol/L of KNO
3
as a reference electrolyte.
￭
Immerse the electrode in 1 mol/L of KNO
3
for several hours.
4 Connecting the electrode
￭
Unscrew the protective cap (1- 1 ) .
￭
Position the cable connection on the electrode head such that the
slot in the cable connection is on the guide lug of the electrode
head.
￭
Push the socket in the cable connection into the plug inside the
electrode head.