IQ Sensor Net System Optical IQ sensors for dissolved oxygen - WTW

Overview Specifications Documentation & Tools ;
Overview

Overview

The WTW IQ Sensor Net FDO® Dissolved Oxygen Probe is 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.

Product Features

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.

Specifications

Specifications

 
 
Specifications
FDO® 700 IQ
FDO® 700 IQ SW*
FDO® 701 IQ
FDO® 701 IQ SW*
Order Number
201652
201660
201653
Measuring method
Optical
Optical
Optical
Measuring range (25 °C)
-
-
-
O2 concentration
0 ... 20.00 mg/l (0 ... 20.00 ppm)
0 ... 20.00 mg/l (0 ... 20.00 ppm)
0 ... 20.00 mg/l (0 ... 20.00 ppm)
O2 saturation
0 ... 200.0 %
0 ... 200.0 %
0 ... 200.0 %
Resolution
-
-
-
O2 concentration
0.01 mg/l (0.01 ppm)
0.01 mg/l (0.01 ppm)
0.01 mg/l (0.01 ppm)
O2 saturation
0.1 %
0.1 %
0.1 %
Accuracy
< 1 mg/l (ppm): ± 0.05 mg/l (ppm) > 1mg/l (ppm): ± 0.1 mg/l (ppm)
< 1 mg/l (ppm): ± 0.05 mg/l (ppm) > 1mg/l (ppm): ± 0.1 mg/l (ppm)
< 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
t90: < 60 s t95: < 80 s
Minimum flow rate
No flow required
No flow required
No flow required
SensCheck
Monitoring of membrane function
Monitoring of membrane function
Monitoring of membrane function
Temp. measurement
Integrated NTC, 23 °F ... 140 °F (-5 °C ... +60 °C) ± 0.5 °C
Integrated NTC, 23 °F ... 140 °F (-5 °C ... +60 °C) ± 0.5 °C
Integrated NTC, 23 °F ... 140 °F (-5 °C ... +60 °C) ± 0.5 °C
Temp. compensation
23 °F ... 122 °F (-5 °C ... +50 °C)
23 °F ... 122 °F (-5 °C ... +50 °C)
23 °F ... 122 °F (-5 °C ... +50 °C)
Pressure Resistance
10 bar (incl. sensor connection cable)
10 bar (incl. sensor connection cable)
10 bar (incl. sensor connection cable)
Ambient Conditions
23 °F ... 122 °F (-5 °C ... +50 °C) -13 °F ... 122 °F (-25 °C ... +50 °C)
23 °F ... 104 °F (-5 °C ... +40 °C) -13 °F ... 104 °F (-25 °C ... +40 °C)
23 °F ... 104 °F (-5 °C ... +40 °C) -13 °F ... 104 °F (-25 °C ... +40 °C)
Electrical connections
2-wire shield cable with quick fastener to sensor
2-wire shield cable with quick fastener to sensor
2-wire shield cable with quick fastener to sensor
Electromagnetic Compatibility
EN 61326, Class B, FCC Class A; Intended for indispensable operation
EN 61326, Class B, FCC Class A; Intended for indispensable operation
EN 61326, Class B, FCC Class A; Intended for indispensable operation
Certifications
CE, cETL, ETL
CE, cETL, ETL
CE, cETL, ETL
Mechanical
Sensor cap, fixation: POM, PVC, silicone, PMMA sensor body: VA stainless steel 1.4571 protection type IP 68
Sensor cap, fixation: POM, PVC, silicone, PMMA sensor body: VA stainless steel 1.4571 protection type IP 68
Sensor cap, fixation: POM, PVC, silicone, PMMA sensor body: VA stainless steel 1.4571 protection type IP 68
Weight (without cable)
3.31 lb (1.5 kg)
1.98 lb (900 g)
3.31 lb (1.5 kg)
Warranty
2 years for defects in quality
2 years for defects in quality
2 years for defects in quality
Documentation & Tools
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