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B&C Electronics OD 8382

Suitable for dissolved oxygen measurements in water treatment, activated sludge, de-nitrification, fish ponds.
The probe is equipped with an optical sensor and a RTD temperature element.
Ready to operate with compressed air autoclean system on the optical sensor.

Interconnecting cable lenght: 10 meters
Max. working temperature: -5 / +50 °C

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A light beam of a specific wavelength is sent to a special fluorescent layer in contact with the sample. The absorbed light energy is partially released as a light pulse with an higher wavelength. This phenomena is called fluorescence. If oxygen molecules are in contact with the sensing layer, the fluorescing is reduced (quenching). By measuring the amount of quenching it is possible to determine the oxygen concentration. The advantages of this measuring method are the absence of electrolyte and membrane, the possibility to measure the oxygen concentration in water or in air, and a good sensitivity in a low oxygen concentration.
FeaturesTechnical DataApplications

This unique submersible probe has been designed to measure
dissolved oxygen based on fluorescent technology.

The measuring system consists of:

• optical device complete with a layer of fluorescent material,
• electronic circuit with an exciting beam for the fluorescence
detection,
• built-in amplifier,
• Pt1000 for temperature compensation
• digital input for calibration and configuration
• nozzle for the autoclean by external pressure air

Sensing element replaceable
Scale 0.0/200.0 % air
Resolution 0.1 % air
Drift < 1% year
Sensor life >1 year, not exposed to sunlight
Response time < 30s
Temperature compensation internal table
Temperature sensor RTD Pt1000
Compensation range 0.0/50.0 °C
Power supply from OD 7685.110
Operating temperature -5/+50 °C
Pressure 1 Bar max
Autocleaning built in nozzle
Air pressure 3 Bar max
Materials PVC, silicon
Diameter 60 mm
Length 165 mm
Thread 2” NPT
Cable 8×0,25 L=10m
EMC/RFI conformity EN 61326
Protection IP68

 

  • Food and beverage
  • Paper and pulp
  • Chemical industry
  • Textile industry
  • Water treatment

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