FDO 700 Optical 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.

Specs

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): O2 concentration O2 saturation	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