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)

