Measuring Instrument

pH electrode

オートクレーブ滅菌、蒸煮滅菌対応の各種電極に対応しています。

Features

  • autoclavable/steam sterilizable probes available
  • either our original one or  another makers' available
pH electrode

oxygen electrode(diaphragm‐type)

オートクレーブ滅菌、蒸煮滅菌対応の隔膜式電極について、普及製品またはOEM製作を取り扱っています。

Features

  • autoclavable/steam sterilizable probes available
  • either our original one or  another makers' available
  • consumable parts availale(e.g. PTFE membrane, electrode and electrolyte solution)
oxygen electrode(diaphragm‐type)

oxygen sensor(fluorometric)

Our recommendation is the one made by Automatic System Research Co.Ltd.

Features

  • Autoclavable/steam sterilizable
  • Measureable even in a solution without stirring
oxygen sensor(fluorometric)

Gas mixer

Mixed gas generator with highly accurate mass flow meters more than two kinds.
Homogeneous mixing of more than two kinds og gas with our special mixing unit.

Features

  • Excellent in stability and reproducibility
  • Constant flow rate and mixing ratio against fluctuation of exit pressure
Gas mixer

Oxidation-Reduction Potential(redox) Electrode

Redox potential is useful for monitoring the level of anarobic condition, special product formation and feeding special substrate.

Features

  • Autoclavable/steam sterilizable
  • Gelled inner solution pressurized for stable measurement in  a fermentor vessel
Oxidation-Reduction Potential(redox) Electrode

Turbidity measurent in Absorbancy Unit(A.U.)

In line monitoring of cell mass change by turbidity measuremnt with a sterilizable probe. 

Features

  • 891nm wave length used for reducing the effect of the ambient light
  • Wide range of AU(0-4)
  • Both type of probe available for autoclaving and sterilization in place
  • Three kinds of probe with different pass length available to suite your process(1mm, 5mm, 10mm) 
Turbidity measurent in Absorbancy Unit(A.U.)

Exhaust gas analyzer(O2, CO2)

In line measurement of oxygen content and carbon dioxide content.
Equipped with a set of thermometer, hygrometer and absolute pressure for precise measurement of the exhaust gas from fermentor vessel

 

Features

  • Usable with 100% relative humidity
  • Highly precise measurement using the standard loaded thermometer · hygrometer · absolute pressure gauge
  • Calibration only with air(one point calibration)   special standard gas not needed
  • Automatic calculation of RQ (Respiratory Quotient) by using special software
排ガス測定(O2,CO2)

Measurement principle

O2 sensor based on ZrO2(zirconium oxide)

ジルコニア式

When voltage is applied to the sensor element, oxygen concentration dependent current will be generated.

Infrared sensor

赤外線吸収波長式

Diatomic molecule absorbes specific wavelength infrared light and its absorbance is propotional to concentration.
Using two wavelengths improves reliability by comparing the absorbance of the specified wavelength with that of all range.

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