Use ACCURRA-Zr. Oxygen in the gas path shows air ingress and improves heat recovery. Dusty gas; choose the probe for temperature and dust.
The measurement and why it matters
Oxygen in the gas path shows air ingress and improves heat recovery. This is a good fit, with one configuration or sample-handling point to confirm before we quote.
Oxygen and carbon monoxide in combustion gas show how well fuel is burning. Too much air wastes heat, too little leaves carbon monoxide and unburnt fuel. A continuous reading lets the operator or the control system trim the burner instead of guessing.
Combustion gas is hot, often dusty and sometimes wet. ACCURRA-Zr mounts on the duct and reads oxygen with no sample line, its sensor protected just outside the wall, with probe options for high dust and for temperatures up to 1400 C, while extractive ACCURRA-S analysers read CO and other gases from a conditioned sample.
Typical buyers in India: cement, steel, sponge-iron and glass plants. Where this matches your plant, send us the gas, range, pressure and temperature at the tapping point and we will confirm the analyser and sample path.
Models and ranges
| Model | Measures | Range | Sensor and notes |
|---|---|---|---|
| ACCURRA-Zr | Oxygen in flue gas | Percent | Zirconia, in-situ, air calibration, auto blowback; high-dust and 1400 C options |
Process notes
What the analyser reads here
Gases of interest: O2. Analyser fit: ACCURRA-Zr.
The table above lists each model with its range; where a row says to confirm the range, we check it against the datasheet for your application before quoting.
What to settle before ordering
Dusty gas; choose the probe for temperature and dust.
We would rather confirm these points at the start than discover them at commissioning, so please include them with your process details.
Related applications
This page overlaps with:
Sampling and installation
- Every ACCURRA-S has an internal fine filter and rotameter. Regulate sample pressure and flow externally; the catalogue recommends about 1 LPM and a sample pressure of 2 to 10 psig.
- Keep sample lines short, clean and dry, and vent the sample somewhere safe.
Send us your process data
The same pre-order design inputs our engineers design from, online. Fill in what you know, leave the rest. Your draft saves as you go, and you can print or send it when ready.
What the data sheet asks for
Send what you have and we will ask for the rest.
- The gases to measure, the range, and the accuracy you need
- Background gases and their typical composition
- Sample temperature, pressure and dew point at the tapping point
- Dust level, and whether the gas carries tar, oil or condensable vapour
- Process connection and, for ducts, the duct diameter
- Where the sample vents to, and at what pressure
- Area classification of the tapping point and of the analyser location, and the IP protection needed
- Distance between the tapping point and the analyser
- Outputs you need: 4-20 mA, dual range, relays, Modbus RTU
- Calibration approach, calibration gas available, and whether blowback is required
- Utilities at site: power supply, instrument air, nitrogen, steam and cooling water, and the ambient temperature range
- Gases and ranges: O2
- The point to confirm: Dusty gas; choose the probe for temperature and dust.
Recommended Sarvesh products
ACCURRA-Zr
In-situ percent oxygen for hot flue gas.
View ACCURRA-Zr
SP and SRP sample probes
Heated or retractable probes with blowback for dusty or hot gas.
View SP and SRP sample probesHeadline filters
Particulate and coalescing protection for the analyser.
View Headline filtersFrequently asked questions
Which analyser suits waste-heat recovery boilers and kiln WHRS?
ACCURRA-Zr Oxygen in the gas path shows air ingress and improves heat recovery.
What should I check before ordering for waste-heat recovery boilers and kiln WHRS?
Dusty gas; choose the probe for temperature and dust.
Who typically needs this?
Typical buyers in India: cement, steel, sponge-iron and glass plants.
Can Sarvesh support a variation of this application?
Yes. If your process differs from the usual case, send the details. Application engineering is where we start every project, and bespoke applications are welcome.
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