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Gerät mit Bildschirm zeigt Sauerstoff 17 ppb, blaue Gehäuse, Centec GmbH, im Labor.

OXYTRANS TR - Oxygen (optical; in-line)

OXYTRANS TR is an optical inline sensor for the continuous measurement of dissolved oxygen (O₂) in liquids and gases. It is designed for applications that require high sensitivity and high measurement accuracy – with straightforward operation and low-maintenance design.

Unlike conventional electrochemical sensors, OXYTRANS TR does not require an electrolyte solution. During measurement, no oxygen is consumed.

Application

OXYTRANS TR is used for measuring O₂ in:

  • deaerated water
  • wort
  • beer
  • CO₂

Dissolved oxygen has a negative effect on flavor stability and shelf life – which is why stable inline monitoring in the process is essential.

Measurement principle (luminescence quenching)

The measurement is based on optical luminescence:

  • The sensor contains an optical window with a thin indicator layer.
  • An LED illuminates the indicator layer with blue-green light.
  • The indicator layer emits red light, which is detected in the sensor.
  • If O₂ is present, the excitation energy is transferred to the oxygen molecules – the detected signal decreases as the O₂ concentration increases.
  • Other gases do not affect the measurement result because they do not absorb this energy.
  • Temperature drift is automatically compensated by the internal Pt100.

What makes the measurement practical

  • No replacement of electrolyte or membrane required
  • Short response time and excellent long-term stability
  • Suitable for a wide concentration and temperature range
  • Highly accurate and almost designed for low maintenance

Highlights

  • Optical technology based on luminescence quenching
  • No electrolyte solution required and no O₂ consumption during measurement
  • Short response time and excellent long-term stability
  • Highly accurate and almost designed for low maintenance
  • Hygienic design and full CIP capability
  • Various flange connections available (depending on version)

Technical Data

Liquid phase measuring range: I) 1 ppb - 2 ppm or II) 30 ppb - 35 ppm

Liquid phase accuracy: I) ± 1 ppb or II) ± 30 ppb

Gas phase measuring range: I) 0 - 4.2 % O₂ or II) 0 - 50 % O₂

Gas phase accuracy: I) ± 0.002 % O₂ or II) ± 0.03 % O₂

Response time t90: ≤ 10 s

Operating pressure: max. 12 bar

Operating temperature: -5 to +55 °C (option: +98 °C)

Temperature sensor: Pt100

Material: 1.4404 / AISI 316L, silicone (FDA), PTFE (FDA)

Connections: Varivent© inline housings; others on request

Output: 2 x analog (4 - 20 mA) & 2 x digital (24 VDC)

Fieldbus: Profibus DP (option)

Protection class: IP65

Power supply: 24 VDC

Options (depending on version / project-specific)

  • Different levels of automation / integration
  • Fieldbus (Profibus DP)
  • Alternative connection variants (on request)
  • Operation up to +98 °C (option)

Contact

To select the appropriate measuring range variant and integrate it into your line, please use the contact form below.

Modular Design & ExtensionsJa — hier ist es ohne Links, direkt kopierbar für den Wix Standard Editor:

OXYTRANS TR – Oxygen (optical; in-line)

OXYTRANS TR is an optical inline sensor for the continuous measurement of dissolved oxygen (O₂) in liquids and gases. It is designed for applications that require high sensitivity and high measurement accuracy – with straightforward operation and low-maintenance design.

Unlike conventional electrochemical sensors, OXYTRANS TR does not require an electrolyte solution. During measurement, no oxygen is consumed.

Application

OXYTRANS TR is used for measuring O₂ in:

  • deaerated water
  • wort
  • beer
  • CO₂

Dissolved oxygen has a negative effect on flavor stability and shelf life – which is why stable inline monitoring in the process is essential.

Measurement principle (luminescence quenching)

The measurement is based on optical luminescence:

  • The sensor contains an optical window with a thin indicator layer.
  • An LED illuminates the indicator layer with blue-green light.
  • The indicator layer emits red light, which is detected in the sensor.
  • If O₂ is present, the excitation energy is transferred to the oxygen molecules – the detected signal decreases as the O₂ concentration increases.
  • Other gases do not affect the measurement result because they do not absorb this energy.
  • Temperature drift is automatically compensated by the internal Pt100.

What makes the measurement practical

  • No replacement of electrolyte or membrane required
  • Short response time and excellent long-term stability
  • Suitable for a wide concentration and temperature range
  • Highly accurate and almost designed for low maintenance

Highlights

  • Optical technology based on luminescence quenching
  • No electrolyte solution required and no O₂ consumption during measurement
  • Short response time and excellent long-term stability
  • Highly accurate and almost designed for low maintenance
  • Hygienic design and full CIP capability
  • Various flange connections available (depending on version)

Technical Data

Liquid phase measuring range: I) 1 ppb - 2 ppm or II) 30 ppb - 35 ppm

Liquid phase accuracy: I) ± 1 ppb or II) ± 30 ppb

Gas phase measuring range: I) 0 - 4.2 % O₂ or II) 0 - 50 % O₂

Gas phase accuracy: I) ± 0.002 % O₂ or II) ± 0.03 % O₂

Response time t90: ≤ 10 s

Operating pressure: max. 12 bar

Operating temperature: -5 to +55 °C (option: +98 °C)

Temperature sensor: Pt100

Material: 1.4404 / AISI 316L, silicone (FDA), PTFE (FDA)

Connections: Varivent© inline housings; others on request

Output: 2 x analog (4 - 20 mA) & 2 x digital (24 VDC)

Fieldbus: Profibus DP (option)

Protection class: IP65

Power supply: 24 VDC

Options (depending on version / project-specific)

  • Different levels of automation / integration
  • Fieldbus (Profibus DP)
  • Alternative connection variants (on request)
  • Operation up to +98 °C (option)

Contact

To select the appropriate measuring range variant and integrate it into your line, please use the contact form below.

Modular Design & Extensions


DeGaS-Cold – Kolonnenwasserentgasung (kalt)

DeGaS-Hot – Kolonnenwasserentgasung (heiß)

DGS – Membranwasserentgasung

OXYSTEAM – Dampfkessel Wasserentgasung

Sensorik & Messtechnik

Processes that inspire. Technology that thinks ahead.

Learn more about our systems and services. Contact us for project-specific proposals and technical consultation.

Wilhelm-Roentgen-Straße 10, D-63477 Maintal

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