Optical D.O. measurement based on dye luminescence is strongly promoted in these days. The manufacturers of such instruments claim far superior performance compared to conventional electrochemical transducers. In theory, the functional principle of the optical D.O. measurement confirms this superiority. However, practical realisation and application does set certain limits and, as usual, further technical development is needed to bring theory and practice to accordance.
WTW's FDO 700 IQ D.O. sensor belongs to a new generation of these detection that eliminate the drawbacks of the former ones. Its most remarkable features are:
- High accuracy right from the start
- Utmost stability over a long timespan
- Minimum professional maintenance effort
This is achieved by entirely new technologies:
- Intelligent Membrane with IQMC technology
- Soft Green Professional light Technology
- (C2) calibrated professional optics
- EPRS reference procedure
