Specifications
Typical values from the datasheet; accuracy applies under the datasheet's reference conditions. Where a value depends on the application it is specified per project and fixed in the order confirmation.
| gases | CO₂ · CO · CH₄ · C₂H₄ · N₂O · SO₂ · NH₃ · SF₆ · SO₂F₂ · CH₃Br · biogas (CH₄/CO₂) |
| F-gas / refrigerants | SF₆ · R-134a · R-125 · R-22 · R-227ea · R-407c · R-12 · R-113 |
| ranges | CO₂ 100 ppm → 100 vol% · CO 2000 ppm → 100 vol% · CH₄ 2000 ppm → 100 vol% · SF₆ 50 ppm → 100 vol% · N₂O / SO₂ / C₂H₄ / NH₃ 200 ppm → 1 vol% |
| optics | 2-beam + reference channel · heated cell · T · P · H₂O compensation |
| performance | LOD 2 % FS · linearity ±2 % · T90 < 30 s · cross-sensitivity < 4 % |
| interface | Modbus RTU / TCP · Ethernet · UART · RS-232/485 · CAN · LoRa · 4–20 mA |
| calibration | traceable ISO 17025 method · VSL · record per unit |
| not NDIR | O₂ · H₂ · N₂ → electrochemical / thermocatalytic channels of TRM-EX |
Downloads
Open links — no form.
| Document | File | Type |
|---|---|---|
| Channel specification | issued per project after the spec call | |
| Interface contract (Modbus / UART / CAN) | with the prototype | |
| Calibration record | per unit, traceable to national standards |
Applications and the rule behind each
- Biomethane digester & grid injection (CH₄ + CO₂)
- CEMS channels inside third-party analyzers
- Refrigerant / SF₆ leak detectors for OEMs
- Indoor-air-quality CO₂ modules for building automation
- Fumigation clearance instruments (SO₂F₂, CH₃Br)
F-gas RegulationSF₆ switchgear: bans, leak checks, monitorinMethane RegulationLDAR surveys, repair deadlines, measurement Industrial Emissions DirecPermits, BAT-AELs, continuous emission monitCBAMCarbon border adjustment: actual, verified eEPBD recastIndoor air quality monitoring in non-residenBiomethane: REPowerEU targDigester control and grid-injection quality
Gases
Each gas has a reference page with limits, IR band and monitoring practice.
Certificates and compliance
Status words as on the datasheet: certified · pending · application dependent.
| CE (EMC, LVD) | application dependent — declared with the host instrument |
| ISO 17025-method calibration | per unit, traceable to VSL |
How you get it
1
gas · range · matrix (tap-form below)
2
feasibility & quote in 24 h
3
prototype channel with calibration record
4
series supply with interface contract
FAQ
Board, module or transmitter?
All three: a bare OEM board with UART/Modbus, a benched module with gas fittings, or a housed transmitter with 4–20 mA. Same NDIR core, same calibration record.
Which gases can it not do?
O₂, H₂, N₂, Cl₂ (no usable IR absorption) — those go to electrochemical or catalytic channels in the TRM-EX. H₂S in wet gas is masked by water vapour.
Minimum order?
Prototype channel first (single unit with calibration record), then series; volume bands are agreed per project.
How long does a prototype take?
Typically weeks, not months — confirmed in the quote; it depends on gas, range and enclosure.
Get a quote
Tell us what you measure — just tap
Three taps and an email. An engineer replies within 24 h with feasibility and a price indication.
All products
IR·OEMOEM channelDM-91field instrumentTRM-PGAfield instrumentIR·SF₆field instrumentTRM-EXfield instrumentGDCsystemGDC-S52systemGASPODsystem
Full catalogue: channel → instrument → system → · Compare table →