Oxygen Sensor

$5,012.00
Order code
VAR-7803

Detect O2 for real-time analysis

  • Fluorescence-sensing detector for optical sensors, a viable alternative to traditional chemical sensing devices
  • Measure fluorescence lifetime, phase and intensity
  • LED based photometry makes this unit affordable–Half the cost of comparable phase measurement systems
  • Excellent stability, extremely low drift and phase noise
  • Simple calibration, setup and control
  • Oxygen Monitoring Kit, including:
    • Phase measurement system
    • Temperature probe 
    • Select sensor patches when ordering

Options

Order code Description
FLOX-PATCH Non-Invasive Oxygen Monitoring Kit, including phase measurement system, temperature probe; select sensor patches when ordering
FLOX-PROBE In Situ Oxygen Monitoring Kit, including phase measurement system, temperature probe; select sensor when ordering

 Benefits

  • Self-contained, benchtop system–invariant to fiber bending or stray light
  • Easy setup and control, combined with its stability and sensitivity make this unit perfect for long term studies
  • Three coatings for probes and patches give you many options

Applications

  • Oxygen sensing applications requiring stability and sensitivity to drift which must be undisturbed for lengths of time
  • Monitor O₂ partial pressure in gas and aqueous solutions and in non-aqueous vapors and solutions
    Monitor traces of oxygen in gas and liquids

FLOX is a device for measuring fluorescence lifetime, phase and intensity. It uses LED excitation and photodiode detection with filter-based wavelength selection for easy experimental set-up and control.

Self contained unit

The compact, self-contained unit makes it invariant to fiber bending and stray light. It also has a wide dynamic range of optical intensity, as well as low optical and electronic crosstalk, and low drift and phase noise.

FLOX is especially useful for oxygen sensing applications where stability and sensitivity to drift is important and where sample set-ups must be left undisturbed for long periods of time.

Easy setup, great for long term studies

The new oxygen sensing system measures fluorescence lifetime, phase and intensity, using LED excitation and photodiode detection with filter-based wavelength selection. The system is simple to set-up and control. When stability and sensitivity to drift are important in your oxygen sensing experiment, this unit is ideal. It is perfect for applications where sample set-ups must be left undisturbed for long periods of time.

Three coatings available for probes and patches

The optical sensors consist of transducer materials, applied to the tips of optical fibers or to substrates such as patches or cuvettes, which change optical properties in response to specific analytes in their immediate environment.

OXY–The standard oxygen sensor designed for monitoring oxygen partial pressure in gas and aqueous solutions is a fiber optic fluorescence probe with a proprietary oxygen sensing coated tip.

HIOXY–Designed for monitoring oxygen partial pressure in non-aqueous vapors and solutions. The sensor coating chemistry is compatible with oils, alcohols, and hydrocarbon-based vapors and liquids.

FOSPOR–A new generation of highly sensitive sensor coating can be used for monitoring traces of oxygen in gas and liquids.

The oxygen sensor probes are low-power and offer high sensitivity, reversibility and stability, ideal for remote monitoring. The thin coating on the probe tips consumes no oxygen, allowing for continuous contact with the sample. They are ideal for viscous samples and are immune to interference caused by pH, ionic strength or salinity fluctuations or biofouling.

 

FLOX software displays oxygen measurements on a connected PC.

Probe Specifications OXY Formulation (general-purpose coating) FOSPOR Formulation (high-sensitivity for low levels of O2) HIOXY Formulation (for hydrocarbon environments)
O2% range (at 1 ATM) 0-100% 0-<10% 0-20.9%
DO range (ppm at 1 ATM) 0-40 ppm 0-4 ppm 0-8 ppm
Temperature range -50-+80ºC for probes 0-+60ºC for probes -50-+60ºC
0-60 ºC for patches 0-60ºC for patches NA  
O2% resolution 100 ppm in gas 10 ppm in gas 100 ppm
DO resolution (at room temp) 4 ppb 0.4 ppb 4 ppb
O2% accuracy <5% of reading <5% of reading <5% of reading
DO accuracy <5% of reading <5% of reading <5% of reading
Min. detectable level in gas 0.01% - 0.05% 0.001% - 0.01% 0.01% - 0.05%
Response time (in gas) < 1 second < 30-60 second < 1 second
Response time w/ overcoating in gas 45-60 seconds 60-90 seconds  
Response time in pure water 30-45 seconds 60-90 seconds ~45 seconds

 

Patch Specifications OXY Formulation (general-purpose coating) FOSPOR Formulation (high-sensitivity for low levels of O2) HIOXY Formulation (for hydrocarbon environments)
O2% range (at 1 ATM) 0-100% 0-10% 0-20%
DO range (ppm at 1 ATM)   0-40 ppm 0-4 ppm 0-8 ppm
Temperature range -20 to +60 ºC for patches 0 to +60 ºC for patches -20 to +60 ºC for patches
O2% resolution (20 sec averaging) 0.05% 0.01%  
 (at 30 sec averaging) 0.05%    
DO resolution (at room temp) 20 ppb 4 ppb 20 ppb
O2% accuracy 5% of reading 5% of reading 5% of reading
DO accuracy 5% of reading 5% of reading 5% of reading
Min. detectable level  0.1% O2 0.01% O2  
  (at 30 sec averaging) 0.1% O2    
Minimum detectable level in water (room temperature) 40 ppb     4 ppb 40 ppb
Response time (in gas) <1 second 30-60 seconds <1 second

Response time w/ overcoating in gas

~30-45 seconds ~60-90 seconds  
Response time in pure water ~45 seconds ~60-90seconds ~30-45 seconds

 

Stability (Continuous LED) OXY Formulation (general-purpose coating) FOSPOR Formulation (high-sensitivity for low levels of O2) HIOXY Formulation (for hydrocarbon environments)
Lifetime Stability (Tau) 0.0006 usec/ HR 0.003 usec/ HR 0.0002 usec/HR
Oxygen Stability % 0.01% HR 0.005% HR 0.007% HR

 

Sterilization Guide OXY Formulation (general-purpose coating) FOSPOR Formulation (high-sensitivity for low levels of O2) HIOXY Formulation (for hydrocarbon environments)
Form factor Probes/Patches Probes/Patches Probes
Autoclavable No Not yet determined Yes
Calibration     Single point reset required after sterilization
Gamma Yes Not yet determined Yes

Options Also Available

AL300 A 500 µm OD (300 µm core diameter) aluminum-jacketed optical fiber probe for applications that require fine spatial resolution. 300 µm alµminµm-jacketed fiber assembly; 500 µm OD, 1 m length
OR125 The OR125 is a 1/8" OD optical fiber probe used as a direct replacement for 1/8" OD O2 electrodes.
100 µm optical fiber, stainless steel ferrule; 3.175 mm OD, 63.5 mm length
P1600

The PI600 is a silicone-jacketed, polyimide-coated optical fiber probe used in environments where a non-metallic probe is required.
200 or 600 µm optical fiber with silicone jacketing; 710 µm OD, 2 m length
OR125G and OR125GT These probes are 1/8" OD optical fiber probes used as direct replacement for 1/8" OD O2 electrodes.
1000 µm optical fiber, stainless steel ferrule; 3.175 mm OD, 63.5 mm length
R Sensor Probe 1000 µm fiber in a stainless steel 1/16" ferrule; 1.587 mm OD, 152.4 mm length
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