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- 459 طريق تشيانمو، منطقة بينجيانغ، هانغتشو، الصين
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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.
FPI LGA system is applicable to almost all industrial process, especially well proven in harsh conditions in combination of high temperature, pressure, dust, corrosives and contaminants.
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.
المبدأ
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.
| المكونات | O₂, CO, CO₂, H₂O, H₂S, HF, HCl, HCN, NH₃, CH₄, C₂H₆, C₂H₄, CH₃I |
| الدقة | 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. |
| النطاق | 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. |
| الخطية | ≤±1%F.S. |
| انجراف المسافة | ≤±1%F.S./6 months |
| وقت الاستجابة | ≤1s |
| Preheating Time | ≤15min |
| درجة حرارة التشغيل | -30 إلى 60 درجة مئوية |
| Storage Temperature | -40~80°C |
| Purge Gas | Instrument air, industrial N₂: (0.3~0.8)Mpa |
| Enclosing Rate | IP65 |
| مقاومة للانفجار | Ex d IIC T5 |
| مصدر الطاقة | 24V DC, 220V AC is optional |
| Consumption | ≤20 واط |
| Analog Outputs | 2 way 4~20mA |
| Relay Outputs | 3 way 24V DC/1A |
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