Ocean Optics OOISensors - Manual (Page 115)

6: Hardware Data Sheets and Instructions
FOSPOR Specifications
Parameter Dissolved Oxygen in Liquid 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 mmHg partial
pressure 0–100 mole%, 0–760 mmHg partial
pressure
Response time Standard: ~1 sec
20–50 seconds with silicone
overcoating Standard: ~1 sec
20–30 seconds with silicone
overcoating
Resolution 0.002 ppm at room temperature 0.005% at room temperature
Stability Drift < 0.00008 ppm O
2
per hour at
low DO
Drift ~ 0.006 ppm O
2
per hour in
air-saturated water
Drift ~ 0.0002% O
2
drift per hour at
low O
2
Drift ~ 0.015% O
2
per hour air
Minimum detectable limit 0.002 ppm at room temperature 0.005 mole% (0.04 mm Hg)
Accuracy (0-20% O
2
, 0-50ºC) 5% of reading (using 2 nd order polynomial fit to multipoint calibration)
Temperature Temperature sensor and software-supported compensation
Temperature range 0–60ºC
Probe reconditioning HIOXY-RECOV: $150
HIOXY-RECOV-N (for HIOXY needle probes: $175
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 calibration using factory-calibrated oxygen
probes
Temperature recalibration Only when probe is replaced/refurbished
Storage conditions No specific requirements
Cleaning 10% hypochlorite detergent
Sterilization Gamma radiation or sodium hypochloride (bleach or Clorox)
FOXY-AL300-000-02-0207 105