eutech-instruments dissolved oxygen probe Manuel D’Utilisation

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3.2  Maintenance 
The probe’s membrane must be kept free from deposits. All surfaces in a 
biologically active system will be covered by a film composed mostly of 
bacteria. This bacteria film acts as a diffusion barrier for the oxygen that must 
diffuse through the membrane. The membrane must, therefore, be cleaned at 
regular intervals, the frequency depending on the actual condition. Cleaning can 
be performed with a cloth or soft paper. The membrane is strong and not easily 
damaged, but do not try to scratch it clean with a fingernail! 
 
The probe should not be taken apart unless it needs renovation. There is no 
need to exchange the electrolyte regularly as in conventional probes! 
 
Other Points Worth Considering 
 
Even though the Eutech probe is one of the most robust available, it should be 
treated carefully. It measures at few thousands of a gram of oxygen, which it 
must “drag” out of the water around it. So, if, in your opinion, it performs 
mysteriously, ask your dealer or us about it. You are certain to get the help you 
need!