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Can we use nitrogen (in other words, 0% O2) to calibrate our Oxigraf X2004 sensor at the low calibration point?

April 26, 2017calibrate calibration low nitrogen O2 sensor words x2004

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Can we use nitrogen (in other words, 0% O2) to calibrate our Oxigraf X2004 sensor at the low calibration point?

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You must calibrate the X2000 series with a gas mixture that contains at least 2% O2. Some absorption is necessary in order for the sensor line lock servo to maintain lock. The X2008 in high resolution, low range mode (0-10%) can utilize pure N2 for its low calibration reference gas.