| Specification |
|
| Principle |
Photoluminescence-quenching using Pt compound. Measures O2 partial pressure. |
| Sensor mechanism |
Phase shift due to change in partial pressure of O2 |
| Applications |
Low O2 (0–5%), vacuum systems packaging, benign environment |
| Time-constant (µsec) dynamic range |
Air: 10.00; N2: 50.00; Low: 3.00, High: 70.00 |
| Accuracy: (0–20% O2, 0–50ºC) |
<5% of reading (using polynomial fit to multipoint calibration) |
| Response time of probe with no overcoat |
<30-60 seconds in gas, 60-90 seconds in liquid |
| Response time of dissolved oxygen in liquid (with overcoat) |
30-45 seconds |
| Response time of probe with Overcoat of Oxygen Gas (at 1 atmosphere) |
60-120 seconds |
| Dynamic range of Dissolved Oxygen in liquid |
0–4.1 ppm; 0–75 mm Hg partial pressure |
| Dynamic range of Oxygen Gas (at 1 atmosphere) |
0–<10% (mole percent); 0–760 mm Hg partial pressure |
| Stability Dissolved Oxygen in liquid |
Drift < 0.00008 ppm O2 per hour at low dissolved oxygen; Drift ~ 0.006 ppm O2 per hour in air-saturated water |
| Stability Oxygen Gas (at 1 atmosphere) |
Drift ~ 0.0002% O2 drift per hour at low O2; Drift ~ 0.015% O2 per hour air |
| Resolution of Dissolved Oxygen in liquid |
0.002 ppm at room temperature |
| Resolution of Oxygen Gas (at 1 atmosphere) |
0.005% at room temperature |
| Lowest detectable limit of Dissolved Oxygen in liquid |
0.002 ppm at room temperature |
| Lowest detectable limit of oxygen gas (at 1 atmosphere) |
0.005% (0.04 mm Hg) |
| Overcoat available |
Yes |
| Temperature range |
0ºC to +60ºC |
| Temperature |
Temperature sensor and software-supported compensation |
| Temperature recalibration |
Only when probe is replaced/refurbished |
| Probe lifetime |
Reconditioning recommended once per year |
| pH operating range |
1-10 pH |
