ACCURRA-S dual channel

Dual-gas CO and CO2 analyser in percent, NDIR

A dual-gas ACCURRA-S measures percent CO and percent CO2 in one enclosure, with two NDIR sensors, independent outputs and Modbus IDs.

Dual gas CO and CO2 (percent)
  • ISO 9001:2015, certified by TÜV
  • Designed and built in Pune since 2002
  • Supplied to Reliance, Tata Steel, Indian Oil, Linde and ISRO
Quick answer

A dual-gas ACCURRA-S measures percent CO and percent CO2 in one enclosure with two NDIR sensors (models 2030 and 6030), each with its own output and Modbus ID. It suits cable fire testing, furnace atmospheres and process gas.

Updated 3 November 2026 · Figures from Sarvesh datasheets

Specifications

ItemSpecificationNotes
CO0 to 100 % (min 0 to 5 %)NDIR, model 2030
CO20 to 20 % or 0 to 100 %NDIR, model 6030
IndependenceOwn electronics, outputs, relays and Modbus ID per channel

From the current Sarvesh product datasheets and company profile. Specifications may change without notice as products improve. The final responsibility to check that a product meets the process and analyser requirement remains with the customer.

Key features

  • Independent electronics, microcontroller, 4-20 mA, relays and Modbus ID per sensor
  • Common pneumatics and one fine filter
  • Calibration history and password protection

How it works

Carbon monoxide and carbon dioxide are the two products of burning carbon. Their ratio shows how complete the combustion or reaction is, which is why they are measured together in test ducts, furnace atmospheres and process gas.

Both use NDIR, which is stable for years and needs infrequent calibration. A dual unit reads both from one sample with independent outputs.

Requirements and limits

  • Safe-area analyser; the standard sample specification applies.

Selection guidance

See the dual-gas analyser page for the full list of combinations.

Applications

Application pages where this is part of the recommended solution:

Compatible products

Frequently asked questions

What ranges?

CO 0 to 100 percent with ranges down to 0 to 5 percent; CO2 0 to 20 or 0 to 100 percent.

What sensor?

NDIR for both.

Used for cable testing?

Yes. The brochure lists CO and CO2 in cable certification.

Can I add oxygen?

Ask us about other combinations.

Talk to an applications engineer

Send the gas, range, pressure, temperature and area classification.

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