Foundry Cupola Gas Analyser

Quick answer

Use ACCURRA-S 2030, 6030, 3030; SGI-320. Cupola gas composition guides blast and heat recovery. Dusty, hot, wet sample; needs conditioning.

Updated 2 November 2026 · Figures from Sarvesh datasheets

The measurement and why it matters

Cupola gas composition guides blast and heat recovery. This is a good fit, with one configuration or sample-handling point to confirm before we quote.

In furnaces, chambers and dry rooms the atmosphere is part of the recipe. A few ppm of oxygen, a dew point or a hydrogen share decides surface finish, yield or safety, and a leak or a drifting gas supply shows up in the analyser before it shows up in the product.

These atmospheres are usually clean at the analyser but can be hot, sooty or particulate-laden at the furnace take-off. Sample from the right point, keep lines short and use dry stainless tubing. Tell us the furnace or chamber volume and flow so we can confirm the sample path.

Typical buyers in India: iron foundries, casting units. 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
2030	Carbon monoxide	Percent ranges	Confirm the range against the datasheet
6030	Carbon dioxide	0 to 20 % or 0 to 100 %	NDIR
3030	Oxygen percentage	0 to 25 % and 0 to 100 %	Electrochemical
SGI-320	Hot extractive emission system	SO2, NO and CO below 1000 ppm	Probe, heated line and conditioner; excludes HCl, HF and H2S

Process notes

What the analyser reads here

Gases of interest: CO, CO2, O2. Analyser fit: ACCURRA-S 2030, 6030, 3030; SGI-320.

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, hot, wet sample; needs conditioning.

We would rather confirm these points at the start than discover them at commissioning, so please include them with your process details.

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.

ACCURRA-S sample specification: non-corrosive, non-toxic, non-flammable, non-condensing and dry, free from entrained oil; sample pressure 2 to 10 psig, regulated externally; flow about 1 LPM; dust below 3 micron. Where your sample differs, we design conditioning around it.

Send us your process data

Application data sheet

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.

Start the data sheet

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: CO, CO2, O2
The point to confirm: Dusty, hot, wet sample; needs conditioning.

Recommended Sarvesh products

ACCURRA-S

Trace, percent and purity analysis of O2, CO, CO2, CH4 and dew point.

View ACCURRA-S

SGI-300 / SGI-320

Hot extractive system for multi-gas flue analysis.

View SGI-300 / SGI-320

SP and SRP sample probes

Heated or retractable probes with blowback for dusty or hot gas.

View SP and SRP sample probes

Headline filters

Particulate and coalescing protection for the analyser.

View Headline filters

i-Cons

Peltier conditioner for wet or condensing samples.

View i-Cons

Frequently asked questions

Which analyser suits foundry cupola and melting furnace gas?

ACCURRA-S 2030, 6030, 3030; SGI-320 Cupola gas composition guides blast and heat recovery.

What should I check before ordering for foundry cupola and melting furnace gas?

Dusty, hot, wet sample; needs conditioning.

Who typically needs this?

Typical buyers in India: iron foundries, casting units.

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.

CO, CO2 and O2 analysis for foundry cupolas and melting furnaces