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GA-5000DN Ammonia Escape Online Monitoring System
Product Overview
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GA-5000DN Ammonia Escape Online Monitoring System (NH3) is based on Tunable Diode Laser Absorption Spectroscopy (TDLAS). It is composed by pretreatment system, gas analysis module and data processing & display. Measured gas passes high-temperature sampling probe for dust removal, tracing pipe for high-temperature transmission, and then enters high-temperature gas analysis module (TDLAS) for analysis and measurement. It effectively solves problems that crystallization of ammonium salt under low temperature blocks flow path; under low temperature, condensate water dissolves NH3 and causes low measurement accuracy; and high dust attenuates optical path in in-situ system and cannot be used for measurement.
- Features
- "Single-line spectrum" absorption technology, avoiding background gas interference; low detection limit and small span drift.
  Heat tracing above 220℃, avoiding crystallization of ammonium salt or dissolution in condensate water.
  High automation, less maintenance.
  Compact structure, convenient for installation.
- Application
- Applied in ammonia escape monitoring and process control in SCR or SNCR denitration system of coal-fired power plant, aluminium manufacturer, steelworks, smelting plant, glass plant, cement plant, garbage power plant, chemical plant, etc.
- Specifications
- Measurement technology: TDLAS technology.
  Range: 0~20μmol/mol (customizable).
  Indication error: ≤1%F.S..
  Zero drift: ≤1%F.S./7d.
  Span drift: ≤1%F.S./7d.
  Response time: ≤120s (T90).
  External output interface: 4x4-20mA output, 4xswitch output.
  Communication interface: RS485/GPRS.
  Power supply: (220±15%)VAC, 5000W.
  Dimension: 600mmx285mmx1200mm.

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