GS6100-IR Process CO/CO₂ Analyzer
Dual-channel NDIR for simultaneous CO and CO₂ measurement
- CO Range
- 0-5000 ppm
- CO₂ Range
- 0-20 %vol
- Accuracy
- ±1% of range
- Response
- <10s T90
Overview
The GS6100-IR uses dual-beam NDIR technology for simultaneous carbon monoxide and carbon dioxide measurement in stated process and flue gas matrices.
- Dual-beam optics support baseline drift compensation
- Cross-interference compensation
- Heated sample cell option to 200°C
- Integrated sample pump and filter
Full Technical Specifications
Key Performance
| Metric | Value | Status |
|---|---|---|
| CO Range | 0-5000ppm | confirmed |
| CO₂ Range | 0-20%vol | confirmed |
| Accuracy | ±1% of reading or 1% FS | confirmed |
| Response | <10 s T90 | confirmed |
| Output | 2 x 4-20 mA, Modbus RTU/TCP, HART 7 | confirmed |
Measurement
| Specification | Value |
|---|---|
| Measuring Principle | Dual-beam NDIR |
| CO Range | 0–5000 ppm (configurable to 0–10%) |
| CO₂ Range | 0–20 %vol (configurable to 0–100%) |
| Accuracy | ±1% of reading or 1% FS (whichever greater) |
| Response Time (T90) | <10 s |
| Baseline Drift | <1% FS/month |
Physical
| Specification | Value |
|---|---|
| Dimensions (W×H×D) | 483 × 177 × 420 mm (19″ rack) |
| Weight | 12.8 kg |
| Housing Material | Powder-coated aluminum, SS316L wetted parts |
| Mounting | 19″ rack (4U) / wall-mount |
Electrical
| Specification | Value |
|---|---|
| Power Supply | 100–240 VAC, 50/60 Hz, 65 W |
| Analog Output | 2 × 4–20 mA (isolated) |
| Digital Output | Modbus RTU/TCP, HART 7 |
| Relay Outputs | 4 × SPDT |
| Display | 5″ color TFT touchscreen |
Environmental
| Specification | Value |
|---|---|
| Operating Temperature | -20 °C to +50 °C |
| Storage Temperature | -40 °C to +70 °C |
| Humidity | 0–95 % RH (non-condensing) |
| Sample Temperature | Up to 200 °C (heated cell option) |
| Sample Pressure | -50 to +500 mbar |
Certifications
| Specification | Value |
|---|---|
| EMC | EN 61326-1:2021 |
| Safety | EN 61010-1 |
| Quality | ISO 9001:2015 |
Where This Analyzer Fits
This model is mapped to the following industry applications and process duties.
Deployment Environments
Common process environments where this model is evaluated.
Certification Scope
Standards are listed with scope and status so engineering review can verify the applicable enclosure, area, and safety case.
| Standard | Scope | Variant | Status | Document |
|---|---|---|---|---|
| CE | Process CO/CO₂ analyzer | Project variant | approved | On request |
| UKCA | Approval listed in existing certification detail | Project variant | approved | On request |
| EN 61010-1 / EN 61326-1 | Safety and EMC standards listed in existing certification detail | Project variant | approved | On request |
Request Documentation
Request technical datasheets, user manuals, certificates, and application notes for this model.
Evidence Notes
Combustion-air control using dual-channel CO and CO₂ measurement
Application note based on the existing power-generation scenario: dual-beam NDIR architecture supports CO/CO₂ tracking for combustion-air review while reducing recalibration burden compared with simpler single-path measurements. Site performance depends on sample conditioning, reference-gas practice, and control-loop setup.
Technical & Engineering Details
Secondary engineering detail — expand each topic for the full measurement, envelope, sample-system, calibration, integration, maintenance and application evidence.
01 Measurement Principle and Limits
How the measurement is bounded
Dual-beam NDIR measures CO and CO₂ by infrared absorption at gas-specific bands.
Rejects
- Dual-beam reference path compensates background signal changes stated in v1 source data
Requires
- Heated sample cell or cool-dry conditioning when moisture is present
- Certified reference gas for span verification
Interferents and Limits
- H₂O vapor if the sample is not heated or dried
- CO / CO₂ channel overlap must be handled by configured NDIR compensation
- Cold-wet sampling without heated cell or GS-SCS-600 cool-dry conditioning
- Sample pressure outside the stated specifications range
02 Operating Envelope
Use these limits as selection inputs, then confirm sample condition, ambient exposure, and materials before quotation.
- Moist sample without heated cell or cool-dry conditioning
- Sample pressure outside stated process inlet range
03 Sample System Boundary
Sampling mode, conditioning components, and exclusions define where the analyzer responsibility ends and the sample system begins.
- integrated sample pump and filter
- heated sample cell option
- GS-SCS-600 cool-dry conditioning path
- Wet process gas without conditioning path selection
04 Calibration & Validation site-specific
Calibration method, interval, traceability, and audit support are shown only when structured data is available.
Zero / Span Method
Six-month span verification with certified reference gas; zero method not fully specified in v1 source data
Interval
6-month span verification recommended in FAQ
Span Gas Traceability
Certified reference gas required
05 I/O & Integration
Signal outputs and communication interfaces shown from the published specification fields on this product page.
Analog Output
2 × 4–20 mA (isolated)
Digital Output
Modbus RTU/TCP, HART 7
Relay Outputs
4 × SPDT
DAHS Review Note
Confirm protocol map, channel naming, alarm states, and reporting format during project integration review.
06 Maintenance & Spares site-specific
Tasks, consumables, and access items are shown only when structured maintenance data is available.
- Six-month span verification with certified reference gas
- Sample pump and filter inspection per site dust and moisture load
- Heated sample cell condition review when moisture is present
- Sample filters
- Certified reference gas
07 Application Evidence
Application context from complex industrial environments.
Application Context
Coal-fired plant operators routinely lose boiler efficiency to inaccurate CO measurement: improper air-fuel ratio control burns excess fuel and accelerates tube fouling, while frequent recalibrations consume site maintenance hours.
Architecture Response
GS6100-IR with dual-beam baseline compensation is specified for ±1% CO accuracy over a 6+ month calibration interval under stated sampling conditions, supporting closed-loop combustion-air optimization with fewer span checks than single-beam architectures.
Frequently Asked Questions
What is the recommended calibration interval?
Dual-beam design maintains zero stability for 6+ months under stated sampling conditions. Six-month span verification with certified reference gas is the recommended planning cadence.
Can it measure CO and CO₂ simultaneously?
Yes, dual-channel NDIR measures both gases simultaneously with cross-interference compensation for the stated matrix.
What about water vapor interference?
Optional heated sample cell at 200°C reduces moisture bias in wet samples. For cold-dry sampling, GS-SCS-600 Cool-Dry conditioning is the typical pairing.
What is the minimum detection limit?
CO: 2 ppm; CO₂: 0.01 %vol at optimal conditions with clean background gas.
Does it support hot standby mode?
Yes, the analyzer can maintain heated optics in standby, achieving measurement-ready status in under 60 seconds.
What outputs are available for DCS integration?
2×4-20mA isolated analog, Modbus RTU/TCP, HART 7, and optional OPC-UA gateway.
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View ProductsCompare GS6100-IR with adjacent options
Review neighboring models by technology, range, accuracy basis, and form factor before moving to quotation.
When this model is preferred
Select GS6100-IR when its measurement principle, range, and form factor match the process duty and certification scope.
When to consider an alternative technology
Consider another analyzer when the gas matrix, sample temperature, hazardous-area scope, or reporting requirement falls outside the stated envelope.
Review GS6100-IR against site conditions
Send gas range, sample temperature, pressure, moisture, and certification needs before final model selection.