In-Situ cross duct laser (TDLS) gas analyzer
LAS 5000XD
The In-Situ TDLS gas analyzer has been designed for meeting the requirements of a large range of CEMS and Process applications.
LAS 5000XD uses Tunable Diode Laser Spectroscopy (TDLS) and comes in various models for measuring parameters such as NH3 + H2O, HF, CO + CO2, O2, HCl + H2O, etc.
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
Thanks to ClearPath, interference of relative humidity, O2 or CO2 is removed in purging areas.
- KEY FEATURES
- 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 to come)
- 💡 CLEARPATH
- 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
- CUSTOMER BENEFITS
- 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% / 0–50% | ||
| HF | 0–3 ppm / 0–500 ppm | ||
| CO ppm + H2O | 0-50 ppm / 0-1% + 0-10% / 0-50% | ||
| CO% + H2O | 0-1% / 0-100% + 0-10% / 0-50% | ||
| CO% + CO2 | 0-1% / 0-100% + 0-1% / 0-100% | ||
| CO2 + H2O | 0-1% / 0-100% + 0-10% / 0-50% | ||
| O2 | 0-1%/ 0-100% | ||
| HCl + H2O* | 0-10 ppm / 0-5000 ppm + 0-10% / 0-50% (*gas temperature must be above 150°C). | ||
| Other gases | Available upon request: CH4, H2S, H2, NO… | ||
| 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
pressure = 1013 mbar / pathlength = 100 cm / ambient temperature = 25 °C
| Options | |
|---|---|
| Junction Box | Analog I/O (2 x 4-20 mA/2 x 4-20 mA) – Digital Output (2 relays) |
| Thermal Shield | Thickness: 20 mm (100°C<Tp<300°C) ; 40 mm (300°C<Tp<600°C) ; 60 mm (Tp above 600°C). |
| Audit Cell | |
| Inline Cell | |
| Alignment Tool | |
| Weather protection covers | |
