CENTEC OXYTRANS M 已除氧饮料中溶解氧测试仪

Technical Data

Liquid Phase Measuring RangeI) 1 ppb - 2 ppm or II) 30 ppb - 35 ppm
Liquid Phase AccuracyI) ± 1 ppb or II) ± 30 ppb
Gas Phase Measuring RangeI) 0 - 4,2 % O2 or II) 0 - 50 % O2
Gas Phase AccuracyI) ± 0,002 % O2 or II) ± 0,03 % O2
Response Timet90 ≤ 10 s
Pressure of Operationmax. 12 bar
Temperature of Operation- 5 - + 55 °C (option: + 98 °C)
Temperature SensorPt100
Material1.4404/AISI 316L, silicone (FDA), PTFE (FDA)
Connectionshoses of 6 mm diameter
Dataloggingmanual and automatic with a logging time of 5 to 600 seconds; approx. 5.000 measurement values; PC software and USB-interface
Enclosure RatingIP65
Power Supplybattery, rechargeable
Weight1,65 kg

Detail

DATASHEET

Application

OXYTRANS M is a portable, optical oxygen sensor for measurement of O2 in deaerated water, wort, beer and CO2. Dissolved oxygen has adverse impact on flavour stability and shelf life.

Description

For continuous measurement of dissolved oxygen in liquids and gases, OXYTRANS M is perfectly suited. The instrument is designed for applications requiring maximum sensitivity and highest accuracy. It is easy to operate and virtually maintenance-free. Electrolyte solutions are not necessary and no oxygen is consumed during the measurement. The optical measurement technology is based on the effect of luminescence quenching, i. e. the radiationless redistribution of excitation energy via molecular interaction. In the measuring head a small glass component with a thin layer of indicator molecules is installed, the optical window. The indicator molecules are illuminated with blue-green light produced by an LED in the oxygen sensor. They absorb the incident light and are promoted to a higher energy state. After a certain time the molecules convert back to their ground state, during which red light is emitted. The red light is detected inside in the sensor. If O2 molecules are present the energy is transferred from the excited indicator molecules to the oxygen. This molecular interaction causes the excitation energy to be redistributed without any resultant radiation. The detected signal decreases with increasing concentration of oxygen molecules in the product. Other gases don’t absorb this energy, so they have no impact on the measurement result. Any temperature drifts of the measured signal are automatically compensated for by an internal Pt100 sensor. The lightweight OXYTRANS M is a very sturdy portable due to its IP65 rated aluminium housing. Hoses are easily connected.

  • Optical technology; no need for electrolyte and membrane changes
  • Short response time and excellent long-term stability
  • Applicable for a wide range of concentrations and temperatures
  • Highly accurate and virtually maintenance-free
  • Sturdy aluminum housing (IP 65)

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
Pressure of Operation max. 12 bar
Temperature of Operation - 5 - + 55 °C (option: + 98 °C)
Temperature Sensor Pt100
Material 1.4404/AISI 316L, silicone (FDA), PTFE (FDA)
Connections hoses of 6 mm diameter
Datalogging manual and automatic with a logging time of 5 to 600 seconds; approx. 5.000 measurement values; PC software and USB-interface
Enclosure Rating IP65
Power Supply battery, rechargeable
Weight 1,65 kg
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