Hanna Instruments HI 2400 User Manual
Page 29
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T R O U B L E S H O O T I N G G U I D E
T R O U B L E S H O O T I N G G U I D E
T R O U B L E S H O O T I N G G U I D E
T R O U B L E S H O O T I N G G U I D E
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Important
In order to have accurate and stable measurements, it is important that
the membrane surface is in perfect condition. This semipermeable
membrane isolates the sensor elements from the environment but allows
oxygen to enter. If any dirt is observed on the membrane, rinse carefully
with distilled or deionized water. If any imperfections still exist, or any
damage is evident (such as wrinkles or tears-holes), the membrane
should be replaced.
Make sure that the O-Ring sits properly in the membrane cap.