Hach AV9000 Manual Del Usuario página 16

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• Excessive silt deposits have built up between the transducer and the protective cover
Notes
• Do not touch the sensor transducer as this will cause damage and incorrect sensor operation.
• Use only approved cleaning solutions as listed in
clean the pressure transducer as this will cause damage and incorrect sensor operation. If there
are debris, spray the membrane with water and use a Q-tip to carefully remove the buildup.
• If the gasket is missing or damaged, install a new one. A damaged or missing gasket will cause
inaccurate readings.
• After cleaning the sensor, clean the gasket and protective cover before they are installed.
• After cleaning an oil-filled sensor, replenish the sensor oil.
• If a sensor must be taken out of service for an extended period, do not store the sensor on a dry
shelf. The manufacturer recommends that the sensor be stored with the sensor head in a bucket
of water to keep the oil debris from crusting in the pressure transducer canal.
To clean the sensor:
1. Soak the sensor in soapy water.
2. Remove the screws from the protective cover. Refer to
3. Remove the cover and gasket. Refer to
4. Carefully swirl the sensor in an appropriate cleaning solution to remove soil. Use a spray or
squeeze bottle to wash away heavier deposits.
5. Clean the gasket and cover.
6. Attach the gasket and cover. tighten the screws until the gasket starts to compress.
Figure 10 Sensor protective cover and gasket
1 Protective cover
16 English
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Figure
10.
2 Gasket
2. Do not use any type of brush or rag to
Figure
10.
3 Sensor

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