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Oxygen Patches for Non-Invasive O2 Measurements

SELECT OPTION:

Our oxygen patches are designed for non-invasive measurement of oxygen in gas and liquids. These patches are installed inside packages on a small, transparent portion of a package prior to filling. Measurements are achived simply with our bifurcated fiber optic reader from outside the package. We recomend the glass patches if you require autoclaving for sterilization. Both formulations can be offered in custom sizes for probes and patches if your application has specific requirements.

There are two types of cap coatings

1) The AP series designed for zero long term drift with applications:

  • Environmental monitoring
  • Process control
  • In line monitoring in beverage industry
  • Waste water treatment
  • Long-term measurement in soil

2) the HCR series for Hydrocarbon Resistant Oxygen applications:

  • Oil industry: refineries, fuel processing
  • Chemical industry involving explosive hydrocarbons and flammable solvents
  • Aviation industry: OBIGS, OBOGS, online real-time fuel tank monitoring

AP Formulation

HCR Formulation

Response rate

T90 = 3 seconds

T90 = 1 second

Dynamic range in gas

0-100% O2/0-760 mmHg O2

0-100% O2/0-760 mmHg O2

Dynamic range in water (DO)

0-40 ppm (wt)

0-40 ppm (wt)

Resolution in gas

0.005% O2 / 0.04 mmHg

0.05% O2 / 0.4 mmHg

Resolution in water (DO)

0.002 ppm (wt) / 2.0 ppb (wt)

0.02 ppm (wt) / 20 ppb (wt)

Accuracy

5% of reading

5% of reading

Lowest detectable level (gas)

0.005% O2 / 0.04 mmHg

0.05 % O2 / 0.4 mmHg

Lowest detectable level (water)

0.002 ppm (wt) / 2.0 ppb (wt)

0.02 ppm (wt) / 20 ppb (wt)

Sensor drift

Zero drift long term continuous operation

0.0001 O2% per hour

Operating temperature

-50 to + 100 C

-50 to + 200 C

Probe lifetime

3 years

3 years