ENVEA - Model LAS 5000XD -In-Situ Cross Duct Laser (TDLS) Gas Analyzer

It combines robustness, fast response time (1 s) and high accuracy measurement in harsh environments (ready for Ex Zone II).

Key operator benefits of LAS 5000XD In-Situ laser gas analyzer:

• No sampling system needed
• No gas temperature influence
• Gas matrix interference free
• Calibration free measurement

• New Embedded ClearPath functionality
• Highly sensitive and selective measurement
• High signal-to-noise ratio
• No measurement drift
• Response time 1 s
• Large dynamic range from ppm to %
• Real-time communication between Transmitter (Tx) and Receiver (Rx)
• Robust, ready for Ex Zone II (certification pending)

• Interference of relative humidity, O₂ or CO₂ is removed in purging areas.

Operator’s benefits:

• No need for N₂ or dry air purge
• High accuracy of O₂ measurement
• High accuracy of H₂O measurement
• High accuracy of CO₂ measurement

• Low maintenance and cost of ownership
• No need for N₂ or dry air purge: Oil & dust free air instrument is enough
• Process optimization leading to reduction of operating costs

A Wide Range of Applications for CEMS and Process

• Ammonia slip control (DeNox)
• Process and combustion control
• HF emission control in aluminum plant
• HCl/SO2 abatement control
• Ethylene cracking furnace control
• HCl level in semiconductor production
• Ammonia concentration control in pet food, fertilizer plants, etc.

Measurable Parameters

• Pollutant: Range
• NH3 + H2O: 0–10 ppm / 0–5000 ppm + 0–5% / 0–40%
• HF: 0–3 ppm / 0–500 ppm
• CO + H2O: 0–50 ppm / 0–1% + 0–5% / 0–40%
• CO + CO2: 0-1% / 0-100% + 0-1% / 0-100%
• CO2 + H2O: Coming soon
• O2: Coming soon
• HCl + H2O: Coming soon
• Other gases: Available upon request

Technical Specifications

• Technology:
• ADLAS (Advanced Detection Laser Absorption Spectroscopy)
• Optimized Opto-Mechanical Design
• High Speed Low-Drift Electronics
• Powerful Signal Processing and Algorithm
• Independent Spectroscopy Technique
• Lower Detection Limit: < 1% of FS
• Response Time (0–90%) – Short: 1 s
• Lack of fit/Linearity: ≤ ±1%
• Flue Gas Temperature (°C max) NH3 + H2O / HCl + H2O / HF CO + H2O / O2 / CO + CO2:
• +400°C (Depends on the concentration range)
• +1200°C (Depends on the concentration range)
• Flue Gas Pressure: 2 bars max (absolute)
• Display on Tx: 4 x 20 LCD
• Communication: Modbus RTU (RS485) / Ethernet (RJ45) – Web server
• Power supply type: + 24 V DC, ripple and noise 50 mV
• Power consumption:
• 15 W (warm-up)
• < 15 W in standard use
• Recommended T° (ambient): -20°C to +55°C
• IP index Tx & Rx enclosures: IP65
• Flange specification requirement on stack: DN50 PN16, 2’’ – 150 lbs, Class 150
• Flange material: SS 316 L
• Air consumption (main purge – necessary): 5-50 L/min (to adjust according to site conditions) (dry and oil free, ISO 8573.1 Class 2-3)
• Air consumption (secondary purge – recommended): 2-3 L/min (dry and oil free, ISO 8573.1 Class 2-3)
• Stack diameter compatibility: From 0.5 to 20 m

Note – The technical specifications are defined in the following conditions: Gas temperature = 25°C / gas pressure = 1013 mbar / pathlength = 100 cm / ambient temperature = 25 °C