ZS-CEMS-100 CEMS CO/CO₂ Module
CEMS analyzer module for continuous CO/CO₂ reporting — engineered to EN 15267-3 QAL1 scope
- CO Range
- 0-1000 mg/m³
- CO₂ Range
- 0-25 %vol
- Cert
- EN 15267 QAL1 scope · EPA PS
- Drift
- <1% FS / month
Overview
Drop-in CEMS analyzer module for continuous CO and CO₂ reporting. Engineered to EN 15267 QAL1 scope, with EPA Performance Specification field testing demonstrated after installation; certificate extract confirmed per project.
- QAL1-scope measurement
- Automated daily zero/span
- Integrated data logger with DAHS
- 19-inch rack mount design
Full Technical Specifications
Key Performance
| Metric | Value | Status |
|---|---|---|
| CO Range | 0-1000mg/m³ | conditional |
| CO₂ Range | 0-25%vol | confirmed |
| Accuracy | <1.5% of certified range | confirmed |
| DAHS | Integrated data logger, 2-year storage | confirmed |
| Certification | EN 15267 QAL1 scope; EPA PS field-demonstrated | confirmed |
Measurement
| Specification | Value |
|---|---|
| Measuring Principle | NDIR with gas filter correlation |
| CO Range | 0–1000 mg/m³ (configurable to 0–5000) |
| CO₂ Range | 0–25 %vol |
| Accuracy | <1.5% of certified range per EN 15267 |
| Drift | <1% FS/month |
| Availability | >99.5% |
Physical
| Specification | Value |
|---|---|
| Dimensions (W×H×D) | 483 × 266 × 550 mm (19″ 6U rack) |
| Weight | 28 kg |
| Housing Material | 19″ rack-mount, stainless front panel |
| Sample Interface | 6 mm Swagelok |
Electrical
| Specification | Value |
|---|---|
| Power Supply | 100–240 VAC, 50/60 Hz, 120 W |
| Analog Output | 4 × 4–20 mA (isolated) |
| Digital Output | Modbus TCP, RS-485, OPC-UA |
| DAHS | Integrated data logger, 2-year storage |
| Display | 7″ touchscreen HMI |
Environmental
| Specification | Value |
|---|---|
| Operating Temperature | +5 °C to +45 °C (cabinet climate-controlled) |
| Sample Temperature | <40 °C at inlet |
| Sample Pressure | 0 to +100 mbar |
| Sample Flow | 0.5–1.5 L/min |
Certifications
| Specification | Value |
|---|---|
| CEMS | EN 15267-3 QAL1 scope — certificate extract per project |
| EPA | 40 CFR 60 Performance Specification (field-demonstrated) |
| TÜV | Type-test scope — confirmed per project |
| EMC | EN 61326-1 |
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 CEMS approval, reporting, and compliance case.
| Standard | Scope | Variant | Status | Document |
|---|---|---|---|---|
| EN 15267-3 QAL1 | CO and CO₂ CEMS module scope | Project variant | conditional | Certificate extract on request when in order scope |
| EPA 40 CFR 60 Performance Specification | Site-level performance test demonstrated after installation | Project variant | conditional | Field demonstration per project |
| TÜV / MCERTS | Approvals listed in certification detail | Project variant | conditional | Certificate extract on request when in order scope |
| HJ 76-2017 | Chinese CEMS standard scope | Project variant | conditional | Certificate extract on request when in order scope |
Request Documentation
Request technical datasheets, user manuals, certificates, and application notes for this model.
Evidence Notes
CEMS CO/CO₂ module integration for waste-incineration audit workflows
Application note based on the existing waste-to-energy scenario: rack CEMS modules with integrated DAHS support CO/CO₂ reporting, QAL2 acceptance workflow, and AST record handling. Acceptance timing depends on site integration, reference-gas practice, and authority review.
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
NDIR with gas filter correlation for CEMS CO and CO₂ reporting.
Requires
- Conditioned sample at the stated inlet temperature, pressure, and flow
- Daily zero check and weekly span check with certified reference gas
- DAHS or plant historian integration for reporting workflow
Interferents and Limits
- H₂O vapor if the CEMS sample is not conditioned to inlet requirements
- CO / CO₂ channel overlap must be handled by configured correlation-filter compensation
- Sample inlet temperature above the stated limit
- Sample flow outside the stated range
02 Operating Envelope
Use these limits as selection inputs, then confirm sample condition, ambient exposure, and materials before quotation.
- Sample flow outside 0.5-1.5 L/min
- Unconditioned sample above the stated inlet temperature
03 Sample System Boundary
Sampling mode, conditioning components, and exclusions define where the analyzer responsibility ends and the sample system begins.
Sample flow: 0.5-1.5 L/min
- 19-inch rack CEMS module
- 6 mm Swagelok sample interface
- integrated DAHS logger
- No external ZS-SCS compatibility is declared in the current published specification
04 Calibration & Validation
Calibration method, interval, traceability, and audit support are shown only when structured data is available.
Zero / Span Method
Daily automatic zero check with instrument-grade N₂; weekly span check with certified reference gas
Interval
Daily zero check; weekly span check
Span Gas Traceability
Certified reference gas required
Audit Support
- EN 14181 AST compliance logging
- QAL2 / AST report generation
05 I/O & Integration
Signal outputs and communication interfaces shown from the published specification fields on this product page.
Analog Output
4 × 4–20 mA (isolated)
Digital Output
Modbus TCP, RS-485, OPC-UA
DAHS
Integrated data logger, 2-year storage
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.
- Quarterly optical bench cleaning
- Quarterly sample filter replacement
- Annual full calibration verification with certified reference gas
- Sample filters
- Certified reference gas
07 Application Evidence
Application context for engineering selection.
Application Context
Municipal waste incineration plants approaching EU IED audit deadlines often need to replace aging CO analyzers fast, but available units typically have 8-week lead times and require integration with the existing DAHS — both at odds with the audit window.
Architecture Response
Three ZS-CEMS-100 modules with integrated DAHS passed QAL2 acceptance within 2 weeks of installation, supporting on-time IED-audit submission with automated monthly AST reporting in place of manual data processing.
Frequently Asked Questions
What is QAL1 certification?
QAL1 (Quality Assurance Level 1) is the EU type-testing standard under EN 15267-3 that proves the analyzer meets specified uncertainty limits in a certified test laboratory. The ZS-CEMS-100 is engineered to QAL1 scope for both the CO and CO₂ channels; the applicable certificate extract is confirmed per project.
How does the automated calibration work?
The module performs daily automatic zero check using instrument-grade N₂ and weekly span check using certified reference gas. Results are logged and trended for EN 14181 AST compliance.
Can it integrate with existing CEMS cabinets?
Yes, 19″ rack format with standard 6mm Swagelok sample connections and Modbus TCP digital output, preconfigured for listed CEMS cabinet integration.
What is the DAHS storage capacity?
2 years of 1-minute average data with automatic QAL2/AST report generation. Data export via USB, Ethernet, or direct connection to plant historian.
What maintenance does it require?
Quarterly: optical bench cleaning, sample filter replacement. Annual: full calibration verification with certified reference gas. All documented for EN 14181 AST.
Does it meet Chinese GB/T standards?
The ZS-CEMS-100 produces the HJ 76-2017 reporting format natively for Chinese power-plant CEMS duty. HJ 76-2017 is China’s CEMS reporting framework rather than a third-party type-test the module carries; any China type-approval is confirmed per project.
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View ProductsCompare ZS-CEMS-100 with adjacent options
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When this model is preferred
Select ZS-CEMS-100 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 ZS-CEMS-100 against site conditions
Send gas range, sample temperature, pressure, moisture, and certification needs before final model selection.