FDO700 IQ sensors for dissolved oxygen

Digital, optical, calibration free – dissolved oxygen senors for the IQ SENSOR NET
Calibration-free, reliable, DIN compliant – the optical FDO® oxygen sensors for the IQ SENSOR NET to regulate biological cleaning steps:
• Calibration and flow free
• Insensitive to air bubbles
• Low usage costs
FDO® sensors are the perfect solution for measuring dissolved oxygen. In addition to being free of calibration and flow, with their 45° membrane, they are also insensitive to air bubbles. Therefore, you will not require any additional installation equipment. The robust design of this sensors allows the use with an overpressure of up to 10 bar. The special membrane has a unique stability and thus ensures stable measured values.
The sea water model (FDO® 700 IQ SW) is optimized for use in special media: All wetted parts are made of titanium and plastic and are therefore extremely resistant to corrosion.

Modele FDO® 700 IQ FDO® 700 IQ SW* FDO® 701 IQ FDO® 701 IQ SW*
Order No. 201650   201652 201660 201653
Measuring method optical
Replacement caps SC-FDO® 700
working life of 2 years
SC-FDO® 701
working life of 6 months
Measuring range (25 °C):
OconcentrationOsaturation
0 … 20,00 mg/l
(0 … 20,00 ppm)
0 … 200,0 %
Accuracy < 1 mg/l (ppm): ± 0,05 mg/l (ppm)
> 1mg/l (ppm): ± 0,1 mg/l (ppm)
Response time at 25 °C t90: < 150 s
t95: < 200 s
t90: < 60 s
t95: < 80 s
Temp. measurement Integrated NTC, 23 °F … 140 °F (-5 °C … +60 °C) ± 0.5 °C
Ambient Conditions -5 °C … +50 °C
-25 °C … +50 °C
-5 °C … +40 °C
-25 °C … +40 °C
Electrical connections 2-wire shield cable with quick fastener to sensor
Weight (without cable) Ca. 900 g Ca. 1.500 g Ca. 900 g  Ca. 1.500 g
* SW: Sensor as sea water model (with plastic arming (POM))

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