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GA-5000nao DeNOx Multiparameter Online Monitoring System

GA-5000nao DeNOx Multiparameter Online Monitoring System

GA-5000nao DeNOx Multiparameter Online Monitoring System

Overview

GA-5000nao (NH3, NO, O2) is based on a tunable semiconductor laser absorption spectroscopy (TDLAS) and ultraviolet difference absorption spectroscopy (DOAS) technology principle, including three parts: pretreatment, gas analysis module and data processing and display. After dusting by the sampling probe, sampling by heating pipe, the measured gas is analyzed by the hot gas analysis module (TDLAS +DOAS technique). It is an effective solution to the technical problem that ammonium salt crystallization plugs flow at low temperature, and that absorption of NH3 by condensation water leads to low measurement precision and that in situ system high dust attenuation light path leads to unmeasurable.

Feature Of GA-5000nao DeNOx Multiparameter Online Monitoring System


  • Single line spectrum technology avoid interference of background gas absorption, low detection limit, small scale drift;
  • More than 220 ℃ heat tracing avoid ammonium salt crystallization and moisture dissolve and absorption;
  • Compact structure, easy to install, a high degree of automation, a small amount of maintenance;
  • Multi-parameter integrated on the same system, measured at the same time, low cost.

Application Of GA-5000nao DeNOx Multiparameter Online Monitoring System


Apply to the ammonia escape emission monitoring and process control of SCR or SNCR deNOx device such as coal-fired power plant, aluminum plant, steel mills, smelting, glass factory, garbage power plant, cement plant, chemical plant, etc.


Specification Of GA-5000nao DeNOx Multiparameter Online Monitoring System


  • Technology: tunable semiconductor laser absorption spectroscopy (TDLAS)+ultraviolet difference absorption spectroscopy (DOAS) technology +zirconia
  • Range: NH3: 0~10~1000ppm
  • NO: 0~50~5000ppm
  • O2: 0~25%
  • Linearity Error: ≤±1%F.S.
  • Repeatability: ≤1%
  • Zero Drift: ≤±1%F.S./half year
  • Span Drift: ≤±1%F.S./half year
  • Response Time: <90s (T90)
  • Analog Output: 5×4-20mA
  • Analog Input: 3× 4-20mA
  • Digital Output: RS485/RS232/GPRS
  • Detection Limit: 0.1ppm (10m optical path)
  • Purge Gas: (0.4~0.8) MPa N2, clean air

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