Chauvin Arnoux LRV7 Manual De Instrucciones página 8

The presence of crystallized white deposits on the electrode is a normal consequence of the evaporation of the storage solution.
To eliminate a deposit, simply rinse the electrode with de-ionized water, then wipe dry with a clean, lint-free cloth.
Do not use aggressive and/or abrasive products (hydrofluoric acid, acetone, etc.).
The cleaning operation must not scratch the glass membrane.
Contamination of the junctions is the commonest cause of measurement problems.
„ Remove any impurities deposited on the surface of the glass membrane and on the junctions using de-ionized water, or a soft
cloth if the deposit is large.
„ The commonest cause of clogging is proteins (dairy products, meat). If rinsing is not enough, use a solution of pepsin +
0.1 mol/L HCl.
Keep your electrode in its bottle in a clean 3 mol/L KCl electrolytic solution. Change it as soon as it becomes cloudy.
Do not keep an electrode dry or in distilled or de-ionized water. The membrane may be damaged and the life of the electrode
shortened.
Keep the connector clean and dry. If necessary, clean it using a soft cloth wet with soapy water. Rinse using a damp cloth and dry
quickly with a dry cloth or forced air.
Regularly check the condition of your electrode and the cleanliness of the junction and of the glass membrane.
Electrodes are wear parts. The life of your electrode depends on how you use and maintain it.
Except as otherwise stated, our warranty is valid for 12 months starting from the date on which the equipment was sold. Extract
from our General Conditions of Sale, provided on request.
The warranty does not apply in the following cases:
„ traces of corrosion on the inside of the connector;
„ traces of clogging agents (glue, paint, resin, etc.) on the body, the glass ball or the junctions;
„ breakage of the glass;
„ damage to the body of the electrode (deformation, discoloration).
CLEANING
MAINTENANCE
WARRANTY
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