Ocean Optics OOISensors - Manual (Page 116)

6: Hardware Data Sheets and Instructions
FOXY/MFPF Specifications
Specification Dissolved Oxygen in H
2
O Oxygen Gas (at 1 atmosphere)
Sensor mechanism Phase shift due to change in partial pressure of O
2
Dynamic range 0–40.7 ppm
0–760 mm Hg partial pressure 0–100% (mole percent)
0–760 mm Hg partial pressure
Response time (standard) ~ 1 second
Response time (w/overcoat) 30–50 seconds 20–30 seconds
Temperature Temperature sensor and software-supported compensation
Temperature range -50º C to 80º C
Chemical compatibility of coating Unaffected by pH change or salinity
Safe with 50% methanol, acids, sodium sulfite, moisture, CO
2
, and CO
Not recommended with strong bases (pH>10), styrene, ethanol, liquid
acetone, acetonirile, HF and BTEX solvents
Resolution 0.02 ppm at room temperature 0.05% (0.04 mmHg) at room
temperature
Calibration Standard 2-point calibration (linear fit)
Multipoint calibration (2
nd order polynomial fit) for improved accuracy
and broad dynamic range applications
Single-temperature, single-point calibrations using factory-calibrated
oxygen probes
Accuracy: (0–20% O
2
, 0–50ºC) 5% of reading (using 2 nd order polynomial fit to multipoint calibration)
Lowest detectable limit 0.02 ppm 0.05% (0.04 mm Hg)
Stability Drift<0.01 ppm per hour Drift ~0.03% O
2
per hour
Probe reconditioning FOXY-RECOV $100
FOXY-RECOV-N (for FOXY needle probes) $125
Temperature recalibration Only when probe is replaced/refurbished
Storage conditions No specific requirements
Cleaning 10% hypochlorite detergent for overcoated probes
Sterilization Gamma radiation or sodium hypochlorite (bleach or Clorox)
Probe lifetime Refurbishing recommended once per year
106 FOXY-AL300-000-02-0207