MultiLAS Analyzer
For monitoring: multiple gases simultaneously
MultiLAS Analyzer
The TRACE-GAS MultiLAS Analyzer sets new standards in gas analysis: The device operates on the principle of tunable diode laser absorption spectroscopy (TDLAS) and uses both DFB and QCL lasers to detect multiple gases simultaneously, selectively, and with the highest precision—all compactly integrated into a single system.
Exemplary configurations can detect CO, CO₂, N₂O, and H₂O using a single laser. For extended requirements, the MultiLAS can be equipped with up to three lasers to additionally analyze gases such as NO, NO₂, NH₃, or others – with detection limits in the ppm range and highest measurement accuracy
Multi LAS Analyzer
Main features
Compact multi-gas system with up to 3 lasers
Detection limits in the ppm range
No consumables required
Hot wet extraction possible at 190 °C, which can reduce sample preparation
Virtually maintenance-free due to robust design
Very low adhesion effects
No cross-sensitivities
No calibration required
selective, continuous real-time measurement
Fast response time
Suitable for plant control
Long life span
Resistant to chemicals
Long term signal stability
No consumables required
More information
Emissions monitoring in power plants
Process control in the chemical industry
Monitoring of fermentation gases in biogas production
Analysis of industrial exhaust gas treatment systems
| Technical data | MultiLAS |
|---|---|
| Sample gas flow | < 0.8 l/min, flow-through |
| Ambient temperature | 10 – 30 °C |
| Ambient humidity | 10–90% r.H. |
| Ambient pressure | 800–1,100 mbar |
| Communication | Modbus TCP/IP |
| Dimensions (L x W x H) | 19″ housing, 520 x 485 x 190 mm |
| Weight | approx. 15 kg |
| Power supply | 230 V AC |
| User Interface | 7″ LCD (capacitive touch) |
Configurable laser modules
The MultiLAS can be equipped with up to three freely selectable laser modules. The following table shows the available standard modules. In addition to the standard modules listed below, other gases can be integrated. A complete overview of available gases can be found here: HITRAN gas database
| Modul | Gas1 | Detection Limit | Measuring range Max. |
|---|---|---|---|
| N₂O/CO/CO₂/H₂O | N₂O | ≤ 0,1ppm (2σ) | 0 – 1000 ppm |
| CO | ≤ 10ppm (3σ) | 0 – 5% | |
| CO₂ | ≤ 0,1% (3σ) | 0 – 20% | |
| H₂O | ≤ 0,1% (3σ) | 0 – 20% | |
| NH₃ low | NH₃ low | ≤ 0,1ppm (2σ) | 0 – 300 ppm |
| NO | NO | ≤ 1ppm (2σ) | 0 – 5000 ppm |
| NO₂ | NO₂ | ≤ 300ppb (2σ) | 0 – 2000 ppm |
| NH₃ / CHO₂ | NH₃ | ≤ 0,1ppm (2σ) | 0 – 2000 ppm |
| CHO₂ | ≤ 300ppb (2σ) | Value is being validated at the moment | |
| CH₄ | CH₄ | ≤ 100ppb (2σ) | Value is being validated at the moment |
| NO₂ / NH₃ | NO₂ | ≤ 300ppb (2σ) | 0 – 2000 ppm |
| NH₃ | ≤ 0,1ppm (2σ) | 0 – 2000 ppm | |
| 1 Other gases and measuring ranges available upon request | |||
Measurement characteristics (valid for all modules)
| Specifications | MultiLAS |
|---|---|
| Zero drift 2 | ≤ LOD within 8 hours |
| Span drift 2 | ≤ ±1 % FS within 8 hours |
| Linearity | ±1 % FS |
| Response time t₁₀–t₉₀ | ≤ 5 s at 0.8 l/min sample gas flow |
| 2 Under constant ambient conditions | |
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