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.
Specifications
| Item | Specification | Notes |
|---|---|---|
| CO | 0 to 100 % (min 0 to 5 %) | NDIR, model 2030 |
| CO2 | 0 to 20 % or 0 to 100 % | NDIR, model 6030 |
| Independence | Own 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

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-SHeadline filters
Particulate, coalescing and PTFE membrane filters from Headline Filters, UK, for analyser protection.
View Headline filtersFrequently 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.