On-line optical oxygen (O2) sensor
FDO® 700 IQ
WTW
WTW's FDO 700 IQ belongs to a new generation of optical D.O. sensors that eliminate the shortcomings of former instruments. The membrane geometry has been optimized to avoid accumulations of air bubbles on the membrane surface that might give incorrect measurement results. The sensor therefore makes full practical use of the fundamental advantages of the optical D.O. measurement, e.g.:
* No incident flow needed
* No calibration needed
* H2S insensitive
* High accuracy right from the start
* Maximum stability over a long timespan
* Minimum maintenance effort
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