Type GS 2/7
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Purpose |
The gas analyzer GS 2/7 is
designed for detection and determination of volatile combustible organic material in
exhaust gases of fermentations, especially for ethanol in baker’s yeast fermentation
as well as pichia yeast fermentation. Operating range: Selectable between 0 - 0,1 vol% to 0 – 1 vol% ethanol. Sensitivity: ± 0,01 vol% ethanol Reproducibility: ± 0,05 vol% ethanol |
Function |
Exhausted air from fermenter is
aspired to gas analyser by air jet pump (therefore no mechanically moving parts). Detection of organic material (ethanol) is performed by a semiconductor sensor element, which indicates changes in concentration of combustible organic matter in the gas by changes in the resistance. The logarithm of the resistance is inversely proportional to the logarithm of the concentration of organic matter in the gas and can thus be converted to the corresponding (ethanol) concentration. The signal is automatically temperature compensated. The linearisation of the sensor signal is done by the multifunction unit according to calibration-data, which for general purposes are already pre-programmed in the instrument. The linearised signal is converted into a standardized current signal (0/4 - 20 mA) which is displayed as ethanol concentration at the digital indicator on the switchboard directly and can be used as input signal for any PCS (Process Control System) or flow controller (remote setpoint operation). Determined calibration data can easily be transmitted to the multifunction unit. |
Function Diagram |
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Utilities Consumption |
Instrument air (4 bar g)
1Nm3/h Electrical power (230V AC) 100W |
Reference installations |
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For price and delivery terms please contact: |
office@vienna.vogelbusch.com |
INTRODUCTION
TYPE
IR-SD 2/2