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DULCOTEST Sensors for Dissolved Oxygen

Measuring range: 0.1 – 20 mg/l

Widely used sensor for the measurement of oxygen dissolved in water above 0.1 ppm to oxygen saturation. For installation in standard immersion pipes or in the bypass line of the process flow. Use in aeration tanks of clarification plants, waterworks, in fish breeding or to monitor surface water. Minimal maintenance due to visual measuring principle.

Reliable Online Measurement of Dissolved Oxygen – with DULCOTEST Sensors

The measured variable ‘dissolved oxygen‘ indicates the volume of gaseous oxygen physically dissolved in the aqueous phase in mg/l (ppm) or the oxygen saturation of water in %. The new type DO 3 is based on visual measurement of fluorescence and can be connected to the process in an immersion pipe or in a flow fitting. It can be used to monitor water rich in oxygen, such as surface water or potable water, as well as for controlling aeration of aeration tanks in clarification plants.

Your Benefits

  • Measured variable: Dissolved oxygen, minimal maintenance in contaminated water due to visual measuring principle
  • Factory calibration stable for a long time. Calibration only needed following replacement of the visual sensor cap
  • Rod-shaped construction for simple installation into standard immersion pipes and ProMinent bypass fittings
  • No flow dependence and minimised faults due to ingredients in the water due to the visual measuring principle of quenching
  • Long lifetime of fluorescence dye and simple replacement by replacement of the sensor cap

Technical Details

  • Measuring accuracy: ±0.1 mg/l
  • Temperature: 0 … 50 °C
  • Max. pressure: 2 bar
  • Degree of protection: IP 68
  • Supply voltage: 18…30 V DC

Dissolved oxygen sensor DO 3-mA

Widely used sensor for the measurement of oxygen dissolved in water above 0.1 ppm to oxygen saturation. For installation in standard immersion pipes or in the bypass line of the process flow. Use in aeration tanks of clarification plants, waterworks, in fish breeding or to monitor surface water. Minimal maintenance due to visual measuring principle.

Your Benefits

  • Measured variable: Dissolved oxygen, minimal maintenance in contaminated water due to visual measuring principle
  • Factory calibration stable for a long time. Calibration only needed following replacement of the visual sensor cap
  • Rod-shaped construction for simple installation into standard immersion pipes and ProMinent bypass fittings
  • No flow dependence and minimised faults due to ingredients in the water due to the visual measuring principle of quenching
  • Long lifetime of fluorescence dye and simple replacement by replacement of the sensor cap
Measured variable Dissolved oxygen
Calibration On atmospheric oxygen or by reference measurement in the process water
Measuring accuracy ±0.1 mg/l
Response time sensor t90 < 60 s at 25 °C from air to nitrogen
Temperature 0…50 °C
Temperature correction integrated Pt1000, fed to the outside
Max. pressure 2.0 bar
Flow Measurement even possible without flow
Supply voltage 18…30 V DC
Electrical Connection Fixed lead, 10 m
Output signal 4… 20 mA assigned to the measuring range, temperature-corrected, calibrated and electrically isolated
Enclosure rating IP 65
Process integration a) Immersion by immersion pipe (PVC, d40/DN 32, provided by the customer). The connection can be made using the immersion pipe adapter (reducing nipple, order no. 356924) and the 45° bracket (order no. 356335). Both parts are included in the scope of delivery and can be ordered as an accessory (also see accessories).

b) Installation into ProMinent bypass fittings, type BAMa with mounting kit G1 sensor DO 3 BAMa (1113807) and adapter (1117395), type DGMa with mounting kit 791818 and type DLG III with mounting kit 815079. These mounting kits must be ordered separately.
Controllers DACb as of firmware 02.01.01.02 with complete calibration functionality and all correction variables (temperature, salinity, air pressure, height above sea level). Displayed units: [ppm] and [% oxygen saturation] DACa, AEGIS II, diaLog X, D1C: calibration only possible by the input of a reference concentration determined from the process water. Only temperature correction variable. Displayed unit: [ppm]
Typical applications Control of oxygen input into the aeration tank (clarification plant), control of oxygen input in water works, breeding of fish and shrimps, conditioning of the water of large aquaria in zoos, assessment of the biological condition of surface water.
Resistance to Contaminated water and the following chemical compounds: carbon dioxide, hydrogen sulfide, sulfur dioxide, ethylene oxide and against gamma sterilisation.
Interference by Oxidant (e.g. chlorine, chlorine dioxide, ozone) and many organic solvents (e.g. chloroform, toluene, acetone)
Measuring principle, technology optical: Measurement of the relaxation time of a pulsed fluorescence beam
Measuring range Order no.
DO 3-mA-20 ppm 0.10…20.0 mg/l 1094609

DULCOTEST Sensors for Dissolved Oxygen Kataloğu

Deha Smart

Meclis Mah. Atatürk Cad. B2 No:109 G İç Kapı No:13 Sancaktepe / İstanbul

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