DISSOLVED OXYGEN

Optical Dissolved Oxygen - FDO 700x IQ

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
Measuring range (25 °C)
O2 concentration 0 … 20.00 mg/l
(0 … 20.00 ppm)
O2 saturation 0 … 200.0 %
Resolution
O2 concentration 0.01 mg/l
(0.01 ppm)
O2 saturation 0.1 %
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 t90: < 60 s
t95: < 200 s t95: < 80 s
Minimum flow rate No flow required
SensCheck Monitoring of membrane function
Temp. measurement Integrated NTC, 23 °F … 140 °F (-5 °C … +60 °C) ± 0.5 °C
Temp. compensation 23 °F … 122 °F (-5 °C … +50 °C)
Pressure Resistance 10 bar (incl. sensor connection cable)
Ambient Conditions 23 °F … 122 °F (-5 °C … +50 °C) 23 °F … 104 °F (-5 °C … +40 °C)
-13 °F … 122 °F (-25 °C … +50 °C) -13 °F … 104 °F (-25 °C … +40 °C)
Electrical connections 2-wire shield cable with quick fastener to sensor
Electromagnetic Compatibility EN 61326, Class B, FCC Class A;
Intended for indispensable operation
Certifications CE, cETL, ETL
Mechanical Sensor cap, fixation: POM, PVC, silicone, PMMA
sensor body: VA stainless steel 1.4571
protection type IP 68
Weight (without cable) 1.98 lb (900 g) 3.31 lb (1.5 kg) 1.98 lb (900 g) 3.31 lb (1.5 kg)
Warranty 2 years for defects in quality
* SW: Sensor as sea water model (with plastic arming (POM))
Electro-Chemical Dissolved Oxygen - TriOxatic® 700x IQ

Digital electro-chemical IQ sensors for dissolved oxygen, connectable to the IQ SENSOR NET
TriOxmatic® IQ: Reliable and proven digital electro-chemical oxygen sensors with 3 electrode system (ECDO) for precise and accurate measurements:

  • Low investment costs
  • No running in, no long-term drift – stable from the beginning to the end
  • Self-diagnosis system SensReg/SensLeck by means of 3 electrode system
    The electro-chemical sensors are known for their high accuracy – from the beginning. Their teflon membrane makes them extremely insensitive to biological deposits. Therefore, in most cases, you will not need an additional cleaning unit.

Also, the membrane – just like the electrolyte consumption – is monitored continuously. Our self-diagnosis system SensLeck and SensReg show occurring errors automatically.

The sea water model is optimized for the use in special media: All wetted parts consist of titanium and plastic and are therefore extremely corrosion-resistant.

Furthermore, if you want, you will find a sensor with a faster response time or for the measurement of trace oxygen.

ModelTriOxmatic® 700 IQTriOxmatic® 700 IQ SW*TriOxmatic® 701 IQTriOxmatic® 702 IQ
Order No.201640201641201644201646
Measuring methodElectrochemical
Measuring range (25 °C)
O2 concentration0.0 … 60.0 mg/l0.00 … 20.00 mg/l0 … 2000 µg/l
0.0 … 60.0 mg/l0.00 … 10.00 mg/l
O2 saturation0 … 600%0.0 … 200.0%0 … 110%
0 … 600%
Resolution
O2 concentration0.1 mg/l0.01 mg/l0.001 mg/l
0.1 mg/l0.01 mg/l
O2 saturation1%0.1%0.1%
1%
Response time at 25 °Ct90: 180 st90: 30 st90: 30 s
t99: 90 st99: 110 s
Minimum flow rate0.05 m/s0.23 m/s0.3 m/s
SensCheckSensLeckSensRegSensLeck
SensRegSensRegSensReg
Temp. measurementIntegrated NTC, 23 °F … 140 °F (-5 °C … +60 °C) ± 0.5 °C
Temp. compensation32 °F … 140 °F (0 °C … +60 °C)
Pressure Resistance10 bar (incl. sensor connection cable)
Ambient ConditionsOperating temperature: 32 °F … 140 °F (0 °C … +60 °C); Storage temperature: 23 °F … 149 °F (-5 °C … +65 °C)
Electrical connections2-wire shield cable with quick fastener to sensor
Electromagnetic CompatibilityEN 61326, Class B, FCC Class A;
Intended for indispensable operation
CertificationsCE, cETL, ETL
MechanicalMembrane head assembly, locking cap: POM
Sensor body: V4A stainless steel 1.4571
Protection rating: IP 68
Weight (without cable)Approx. 1.46 lb (660 g)Approx. 2.58 lb (1,170 g)Approx. 1.46 lb (660 g)
Warranty2 years for defects in quality
* SW: Sensor as sea water model (with plastic arming (POM))

*More instruments are available, please liaise with us if any of your required instruments is not listed above.