Trace Oxygen Analyser - OZR 8000
Control of pure gases and gas mixtures
General
OZR 8000 Trace Oxygen Analyser meets the requirements of industrial gas production and thermal treatment industries.
Principle
Measuring principle
–The oxygen in the sample gas diffuses from the sample side of the ZrO2 cell through to the outside (ambient), thereby a potential gradient exists which is measured via the inner/outer electrodes.
–The change in the potential gradient is proportional to the change in concentration of oxygen present in the sample gas
–The reference value is always ambient air.
Type of configurations
| Ranges |
|---|
| Factory preset 0 – 1/10ppm |
| Freely configurable up to 250 000 ppm |
Technical specifications
| Measurement method | Zirconium dioxide detector |
| Ranges | Factory preset 0 – 1/10ppm Freely configurable up to 250 000 ppm |
| Analog Output signals | 2 x 4..20mA configurable |
| Digital output | Ethernet-10/100BASE-T (standard) 4 x D/O configurable (standard) Modbus RS232/485 Profibus DP/PA and Profinet (optional) |
| Linearity | With such measuring principle, Zirconium Dioxide cells are base linear. |
| Repeatability | < 1 % of the measurement range or 100 ppb O2 (whichever is greater) |
| Zero Drift | < 1 % of the measurement range per week or 250 ppb O2 (whichever is greater) |
| Sensitivity Drift | <1 % of measurement range per week or 250 ppb (whichever is greater) for pure samples. |
| Output Fluctuation (2 σ) | < ± 0.5 % of the measured value or 50 ppb O2 (whichever is greater) |
| Detection Limit (4 σ) | < ± 1 % of the measured value or 100 ppb O2 (whichever is greater) |
| Warm-up time | < 15 minutes |
| Response time | T90 < 60 sec at a sample gas flow of 8 l/h and electronic T90 time (static/dynamic) = 3 /0 sec |
| Sample gas T° | +5 to 45°C |
| Pressure | ≤ 70 hPa, outlet pressure: atmospheric |
| Flow rate | 4 – 20 L/h |
| Connections | 3mm Swagelok ® (inlets) 1/8 NPT internal thread (outlets) |
| Power supply | 100 - 240 V AC (- 15 %, + 10 %) 50-60 Hz (± 3 Hz). |
| Dimensions | Rackable unit 19’’ - Total height: 3U (133mm) – Depth: 365 mm. |
* For an outlet pressure between 800 and 1750 mbar
Applications
> Air separation plants
> Specialty gas laboratories
> Process control
> Steel industry
> Cryogenic truck loading station
> Basic research
> Materials research
> Monitoring of atmospheres
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Features
Long sensor lifetime
Trace oxygen measurement in pure gases
Factory preset measuring ranges 0…1/10 ppm
Freely configurable up to 250 000 ppm
Clear-text status messages
Self-monitoring function indicates when maintenance is required
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Brochure
OZR 8000