- +86 571 8501 2111
- fpi-online@fpi-inc.com
- 459 Qianmo Road, Distretto di Binjiang, Hangzhou, Cina
Utilizing proprietary technologies of Tunable Diode Laser Absorption Spectroscopy (TDLAS), FPI delivers the LGA system to satisfy in-situ mesurements with high accuracy, fast response, strong reliability and virtually maintenance free.
Il sistema FPI LGA è applicabile a quasi tutti i processi industriali, in particolare è ben collaudato in condizioni difficili in combinazione con alte temperature, pressione, polvere, agenti corrosivi e contaminanti.
Based on the Tunable Diode Laser (TDL) technology, LGA-4000 is a highly reliable laser gas analysis system that monitors various toxic and hazardous substances (HF, NH3, H2S, HCI) from stack emission with high accuracy, strong reliability and is virtually maintenance-free.
Leveraging an installed base of over 8,000 units, the LGA system has been extensively used for combustion and safety control, process optimization, energy recovery, scientific research as well as environment monitoring. To date, these units have been employed in metallurgy, refinery, petrochemical, natural gas, power plant, waste incineration, cement and other situations where gas measurement is needed.
Principio
TDLAS technology utilizes the principle that laser en-ergy is absorbed selectively by gas to form an absorption spectrum. Laser beams of specific wavelengthsis emitted by semiconductor laser, and when passesthrough the gas, the attenuation of the laser intensityis related with measured gas. The concentration canbe obtained by measuring intensity attenuation.
| Componenti | O₂, CO, CO₂, H₂O, H₂S, HF, HCl, HCN, NH₃, CH₄, C₂H₆, C₂H₄, CH₃I |
| Precisione | HF: 0.02ppm; HCl, NH₃, C₂H₂: 0.1ppm; H₂O, HCN: 0.3ppm; CH₄: 0.4ppm; C₂H₆, CH₃I: 0.6ppm; CO, CO₂: 10ppm; H₂S: 20ppm; O₂: 100ppm, at room temperature and pressure with reference to a one-meter optical range. |
| Gamma | HF: (0~5)ppm; C₂H₆, NH₃: (0~10)ppm; HCN: (0~30)ppm; CH₄: (0~40)ppm; HCl, H₂O: (0~50)ppm; C₂H₆, CH₃I: (0~60)ppm; CO, CO₂: (0~1000)ppm; H₂S: (0~2000)ppm; O₂: (0~1)%Vol, customized. |
| Linearità | ≤±1%F.S. |
| Deriva della campata | ≤±1%F.S./6 mesi |
| Tempo di risposta | ≤1s |
| Tempo di preriscaldamento | ≤15min |
| Temperatura di lavoro | -30~60°C |
| Temperatura di stoccaggio | -40~80°C |
| Gas di spurgo | Instrument air, industrial N₂: (0.3~0.8)Mpa |
| Tasso di chiusura | IP65 |
| Explosion–Proof | Ex d IIC T5 |
| Alimentazione | 24V DC, 220V AC is optional |
| Consumo | ≤20W |
| Uscite analogiche | 2 vie 4~20mA |
| Uscite a relè | 3 way 24V DC/1A |
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