--- title: Power Plant and Emission Gas Analysers | Sarvesh url: https://www.sarveshanalytics.com/industries/power-plant-emission-monitoring-gas-analysers.html description: Zirconia flue gas oxygen analysers, SGI-320 stack emission monitoring systems and thermal oxidiser oxygen monitoring from Sarvesh Analytics, Pune. updated: 2026-11-03 source: html --- Industry # Gas analysers for boilers, power plants and emission monitoring Combustion plants need oxygen readings that survive heat and dust, and stack monitoring needs a sample that arrives clean and dry. Sarvesh makes the ACCURRA-Zr zirconia analyser, the i-Cons Peltier conditioner and the SGI-320 hot extractive emission monitoring system. Quick answer Power plants use ACCURRA-Zr for in-situ flue gas oxygen, the i-Cons conditioner for extractive sampling, and SGI-320 for multi-gas stack monitoring of NO, SO2, CO, CO2 and O2. No statutory approval is claimed; send your regulatory requirement for review. Updated 3 November 2026 ยท Figures from Sarvesh datasheets What matters here ## What power, boilers and emissions plants need from gas analysis - Zirconia O2 from 0.1 to 21 %, sensor protected outside the duct, calibrated on air, with auto blowback - High-dust and up to 1400 C probe options - SGI-320: probe, heated line, conditioner and analysers as one plug-and-play system - Measurement of NO, SO2, CO, CO2 and O2 on one sample line Excess air is the biggest controllable loss in a boiler, and oxygen in the flue gas is how you control it. ACCURRA-Zr mounts on the duct with its sensor just outside, fed through a guide tube, so it reads oxygen with no sample line to block while the sensor stays clear of dust and temperature swings. That makes it the first choice for boilers, furnaces and heaters. Where regulators or the plant need the other flue components, SGI-320 draws a hot sample through a heated line, conditions it, and measures several gases at once. We make no claim of statutory approval for emission reporting; tell us your regulatory requirement and we will scope the system around it. Applications ## Major applications in Power, boilers and emissions These are the applications we are asked about most, not the full list. We add more regularly, and we engineer for bespoke applications too. If yours is not here, contact us. [ ### Boiler and furnace oxygen (flue gas) Excess air is the biggest lever on combustion efficiency. Read more ](https://www.sarveshanalytics.com/applications/boiler-and-furnace-oxygen-flue-gas.html)[ ### Stack and emission monitoring SGI-320 is a ready-to-use extractive system for hot, wet stack gas. Read more ](https://www.sarveshanalytics.com/applications/stack-and-emission-monitoring-system.html)[ ### Thermal oxidiser and scrubber efficiency Thermal oxidisers need enough oxygen to destroy the load, and scrubbers need a measured removal efficiency. Read more ](https://www.sarveshanalytics.com/applications/thermal-oxidiser-and-scrubber-monitoring.html)[ ### Cement kiln and precalciner O2 and CO Kiln oxygen and CO guide fuel burn and flag combustion trouble. Read more ](https://www.sarveshanalytics.com/applications/cement-kiln-and-precalciner-o2-and-co.html)[ ### Coal mill inerting and fire protection Mill outlet oxygen and CO signal ignition risk and control inert gas. Read more ](https://www.sarveshanalytics.com/applications/coal-mill-inerting-and-fire-protection.html)[ ### Waste-heat recovery boilers and kiln WHRS Oxygen in the gas path shows air ingress and improves heat recovery. Read more ](https://www.sarveshanalytics.com/applications/waste-heat-recovery-boilers-and-kiln-whrs.html)[ ### Biomass, bagasse and rice-husk boiler combustion trim Fuel varies from day to day, so oxygen and CO trim saves fuel and cuts smoke. Read more ](https://www.sarveshanalytics.com/applications/biomass-bagasse-and-rice-husk-boiler-combustion-trim.html)[ ### Thermic-fluid heaters and hot-air generators Oxygen trim on small heaters saves fuel; the base is large. Read more ](https://www.sarveshanalytics.com/applications/thermic-fluid-heaters-and-hot-air-generators.html)[ ### Glass melting furnace combustion trim Furnace oxygen guides regenerative firing and energy use. Read more ](https://www.sarveshanalytics.com/applications/glass-melting-furnace-combustion-trim.html)[ ### Boiler and burner factory test benches End-of-line testing needs a multi-gas reading at the stack. Read more ](https://www.sarveshanalytics.com/applications/boiler-and-burner-factory-test-benches.html) Recommended products ## Products for this industry [ ### ACCURRA-Zr Zirconia percent O2 analyser for furnaces and boilers, single-point air calibration, options to 1400 C. View ACCURRA-Zr ](https://www.sarveshanalytics.com/flue-gas-analysers.html)[ ### SP and SRP sample probes Heated and non-heated probes with blowback, and retractable probes, in SS316, Inconel or ceramic. View SP and SRP sample probes ](https://www.sarveshanalytics.com/sample-probes.html)[ ### i-Cons Smart Peltier sample conditioner with diagnostics, auto blowback and Modbus, in a compact 19 inch cabinet. View i-Cons ](https://www.sarveshanalytics.com/smart-systems-for-gas-analyser.html)[ ### Headline filters Particulate, coalescing and PTFE membrane filters from Headline Filters, UK, for analyser protection. View Headline filters ](https://www.sarveshanalytics.com/headline-filters.html)[ ### ACCURRA-S Online analyser for trace, percent and purity O2, CO, CO2, CH4 and dew point; can measure two gases from one sample. View ACCURRA-S ](https://www.sarveshanalytics.com/safe-gas-analyser.html) Questions ## Frequently asked questions **Does the stack monitoring system have regulatory approval?** We make no statutory approval claim. Send your regulatory requirement and we will say what the system meets and what it does not. **How is the zirconia analyser calibrated?** With plain air at a single point.