The trace oxygen analyzer ZO23 measures the gas concentration with a zirconium dioxide measuring cell.  The measuring element consists of ceramics with a platinized surface, conducting oxygen ions at temperatures typically above 600^oC.  The measuring cell is catalytically inactive.  The measuring method is especially advantageous to small measuring ranges of down to 1 ppm.  This makes the analyzer particularly suitable for measuring oxygen in pure gases.

Typical Applications

- Purity measurement
- Air separation plants
- Quality control in tank farms

Sample Components

- O₂ in nitrogen or argon

Measuring Ranges

- Minimal measuring range: 0...1 ppm
- Measuring ranges can be user set, factory setting: 0 - 1/10/100/1000 ppm

Measurement Principle

- Measurement of oxygen with catalytically inactive ZrO₂ cell

Dynamic Response

- T₉₀ time < 60 s when switching from sample to test gas

Calibration

- Manual or automatic calibration

Downloads

EasyLine Brochure
EL3020 Data Sheet