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Which rule are you buying for?
Regulation → gas → product. Dates and obligations are explained on the Regulation → measurement page.
| Regulation / obligation | Gas | Tremon product |
|---|---|---|
| F-gas · Reg. (EU) 2024/573 SF₆ switchgear leak-check exemption · room / leak monitoring | SF₆ · refrigerants | DM-91 density monitor with alert · IR·SF₆ transmitter · GDC-S52 multi-point sampling for GIS rooms · IR·OEM SF₆ channel |
| Methane · Reg. (EU) 2024/1787 LDAR surveys · continuous CH₄ monitoring · MRV | CH₄ (ppm → %LEL) | TRM-EX-IR field analyzer (Ex) · IR·OEM CH₄ channel for survey instruments |
| Biomethane · REPowerEU 35 bcm digester control · grid-injection gas quality | CH₄ + CO₂ | TRM-PGA process analyzer (rack / wall) · IR·OEM CO₂/CH₄ channel for skids |
| Industrial emissions · Dir. (EU) 2024/1785 permit monitoring · CEMS · QAL | CO₂ · CO · SO₂ · N₂O | TRM-PGA multi-channel process analyzer · IR·OEM channels · GDC controller to SCADA |
| CBAM · ETS verified actual emissions vs default values | CO₂ | TRM-PGA process analyzer + traceable calibration record · IR·OEM CO₂ channel |
| Buildings · EPBD 2024/1275 indoor-air-quality measuring & control devices | CO₂ | IR·OEM CO₂ channel for building-automation makers |
| Workplace safety · ATEX / OEL toxic · combustible · O₂ in hazardous areas | multi-gas | TRM-EX (E / CT / IR / SMC) · GDC alarm controller · GDC-S52 sampling · GASPOD cabinet |
Catalogue
L1OEM NDIR channels — into your instrument
The sensing core with an interface contract. In-house 2-beam optics with reference channel and heated cell; calibration traceable to national primary gas standards. Delivered as OEM board or benched module, scoped to your gas, range and matrix.
IR·OEM
OEM NDIR channel · one gas or several · board / bench / transmitter
OEM · MADE TO SPEC
biomethaneCEMS · IEDF-gas 2024/573IAQ · EPBDCBAM · processgasesCO₂ · CO · CH₄ · C₂H₄ · N₂O · SO₂ · NH₃ · SF₆ · SO₂F₂ · CH₃Br · biogas (CH₄/CO₂)
F-gas / refrigerantsSF₆ · R-134a · R-125 · R-22 · R-227ea · R-407c · R-12 · R-113
rangesCO₂ 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%
optics2-beam + reference channel · heated cell · T · P · H₂O compensation
performanceLOD 2 % FS · linearity ±2 % · T90 < 30 s · cross-sensitivity < 4 %
interfaceModbus RTU / TCP · Ethernet · UART · RS-232/485 · CAN · LoRa · 4–20 mA
calibrationtraceable ISO 17025 method · VSL · record per unit
not NDIRO₂ · H₂ · N₂ → electrochemical / thermocatalytic channels of TRM-EX
L2Field instruments — install and connect
Complete transmitters and transducers with datasheet, manual and a per-unit calibration record — the number you defend in an audit.
DM-91
multifunction density transducer · SF₆
F-gas 2024/573leak-check exemptionswitchgear retrofit
measuresdensity · pressure · temperature · humidity
gasesSF₆ · N₂ · CF₄ · O₂ · CO₂ · Novec™ 4710 · He · Ar · mixtures
accuracy±0.2 % URL pressure/density · ±0.2 °C · ±5 % RH
ranges0.6 / 1.2 / 1.6 / 2.2 MPa abs · 3-year calibration interval
interfaceRS-485 Modbus RTU · LCD opt. · M12 / cable
buildIP68 · ≤30×125 mm · ≤0.5 kg · −60…+85 °C
TRM-PGA
process NDIR gas analyzer · rack / wall
biomethaneCEMS · IEDCBAM · process
channels1–7 gases per heated stainless cuvette · no moving parts
rangesCO₂ · CO · CH₄ · SF₆ · N₂O · SO₂ · C₂H₄ · NH₃ · biogas — ppm → 100 vol%
performanceLOD < 2 % FS · linearity ±2 % · T90 < 30 s · cross-sens. < 4 %
interfaceRS-485 Modbus RTU · Ethernet Modbus TCP · USB service · µSD log
versionsTRM-PGA-R 19″ 3U Rittal Ripac · TRM-PGA-W Rittal AX 500×500×210 IP66
sample6 mm Swagelok-type · 300–500 sccm · 0.9–1.1 bar · < 90 °C
IR·SF₆
stationary NDIR transmitter
F-gasroom & leak monitoringGIS / substations
gasSF₆ + refrigerants (F-gas)
range0–1000 / 0–2000 ppm (0–6000 / 0–12000 mg/m³)
optics2-beam + reference · heated cell
responsewarm-up 60 s · t₉₀ ≤15 s
interfaceRS-485 Modbus RTU
buildIP65 · −40…+60 °C · aluminium
TRM-EX
stationary field gas analyzer · Ex
methane LDARworkplace safety · ATEXhazardous areas
principleelectrochemical · thermocatalytic · infrared · semiconductor
gasestoxic · combustible (%LEL) · O₂ · CO₂ · HC · refrigerants
variantsTRM-EX-E · TRM-EX-CT · TRM-EX-IR · TRM-EX-SMC
output4–20 mA · RS-485 Modbus RTU · relay opt.
Ex markingEx db IIC T6 Gb X · Ex tb IIIC T85°C Db X
buildIP65 · SS316 sensor · −40…+60 °C · 12–24 V DC
L3Systems — collect, alarm, report
Controllers and cabinets that turn field readings into alarms, records and SCADA data — the layer that makes compliance repeatable.
GDC
gas detection controller · cabinet
IED · CEMSmulti-point alarmsSCADA
functionmulti-level gas monitoring & alarm controller
field devicesup to 30 analyzers per cabinet
architecture3 levels · field → GDC cabinet → SCADA
protocolsModbus RTU / TCP/IP · IEC 60870-5-104
I/Oup to 112 relay outputs · 4–20 mA · RS-485
enclosure600×600×250 mm · 26 kg · IP65 · 230 V AC
GDC-S52
sample-extraction system · GDC family
SF₆ · GIS roomsF-gas 2024/573multi-point
functionsequential aspiration of gas samples from remote points to one analyzer
sample pointsup to 12 impulse lines · 8 mm PU tube · 20 m/s
automationTremon Lorentz PLC · touch-panel · 16 relay outputs
protocolsModbus TCP · IEC 60870-5-104 (PRP) · RS-485 Modbus RTU
pneumatics5.5 bar compressed air · built-in cabinet & line leak tests
enclosure1000×600×250 mm · 25 kg · IP65 · −40…+60 °C · dual feed ATS
GASPOD
automated gas-cylinder cabinet
semiconductortoxic & flammable gases
purposesafe storage & supply of inert · flammable · toxic gases
usesemiconductor fab · energy · research
controlTouch-Screen ≥10″ · EMO · status column
safetygas-leak · fire · exhaust · door monitoring
interfaceModbus TCP (Ethernet) · discrete I/O
buildIP54 · 2550×610×610 mm · up to 4 × 50 L · 300 bar
Gas × technology
What each channel measures
One matrix, from our own datasheets: the measuring principle that serves each gas group and where it is typically used.
| Gas | NDIR (IR) | Thermocatalytic (CT) | Electrochemical (E) | Semiconductor (SMC) | Typical use |
|---|---|---|---|---|---|
| CO₂ 0–5000 ppm → 100 vol% | ● | · | · | · | biomethane · CEMS · IAQ · CBAM |
| CH₄ · hydrocarbons 0–100 %LEL · vol% | ● | ● | · | · | methane LDAR · biomethane · safety |
| SF₆ 0–1000 / 0–2000 ppm · density | ● | · | · | ● | F-gas · GIS / switchgear |
| Refrigerants R-134a · R-125 · R-22 · R-227ea · R-407c… ppm ranges | ● | · | · | ● | F-gas · leak detection |
| CO 0–300 / 500 / 1000 ppm | · | · | ● | · | safety · CEMS (E) |
| SO₂ · NO · NO₂ · N₂O ppm ranges | · | · | ● | · | emissions · safety |
| O₂ 0–25 vol% | · | · | ● | · | confined space · inerting |
| H₂S · NH₃ · HCN · Cl₂ · HF · HCl ppm ranges | · | · | ● | · | toxic gas safety |
| H₂ 0–500 / 1000 / 2000 ppm · %LEL | · | ● | ● | · | hydrogen · battery rooms |
| SiH₄ · AsH₃ · PH₃ · B₂H₆ · GeH₄ · WF₆ … ppb–ppm | · | · | ● | · | semiconductor · GASPOD / GDC |
| Solvents · alcohols · aromatics (C₂–C₉) %LEL | · | ● | · | · | process safety |
Honest boundary. NDIR is our core and covers CO₂, CH₄/hydrocarbons, SF₆ and refrigerants. O₂, H₂, Cl₂ and H₂S have no usable IR absorption (or are masked by water) — those are served by the electrochemical, thermocatalytic and semiconductor channels of the TRM-EX. Full gas lists with ranges are in each datasheet.
Need a different gas, range or form factor?
One gas or several — scoped to the rule and the decision your reading protects.
Spec your channel →See applications →