Description
Model: UT-IN-S-N-O-H-230
SO2-NO2-CO2 measurement:
• This analyzer uses UV absorption (for SO₂ and NO₂) and IR spectroscopy (for CO₂) in a compact, robust sensing head with LED light sources and no moving parts, requiring virtually zero maintenance.
Accuracy is ensured through automatic zero calibration using ambient air, with CO₂ scrubbed by a long-life disposable filter (2+ years replacement interval).
• Service needs are minimal: 36V DC power (@50 VA) and RS485 digital output via a single 4-way sealed connector.
NO/H2O Measurement:
• The NO/H₂O sensor uses the same in-situ probe design as the SO₂/NO₂/CO₂ sensor but employs a Quantum Cascade Laser (QCL) as the radiation source. The QCL provides a narrow, precise IR beam, allowing measurement of a single NO absorption line free from H₂O interference for highly accurate, noise-free readings. It simultaneously measures H₂O concentration using a nearby spectral line.
• Unlike traditional chemiluminescence (maintenance-heavy) or IR/UV methods (cross-sensitivity and short lamp life issues), the QCL offers long-term stability, no moving parts, and virtually zero maintenance, with a lifetime measured in decades.
• The analyzer measures NO from <10 ppm to several thousand ppm at temperatures up to 450 °C and can be adapted for other gases (e.g., NH₃) by selecting a suitable QCL wavelength, making it ideal for applications like SCR control in coal-fired power plants.
Features
• INSITU CEMS suitable for Refineries, power plant & other industries.
• Measurement gas resolution 1 PPM and accuracy +/-2% of reading
• UV absorption spectroscopy based SO2 & NO2 measurement, Laser (QCL) based NO & H2O measurement and Infrared spectroscopy-based CO2 measurement
• Remote monitoring of system available.
• Simple Installation as per the photograph
• Light weight so easy to installation.
• Low maintenance cost
• No Shelter required
Specifications:
|
Parameter
|
Description
|
|
Measurement
|
SO2, NO2, CO2, NO/H2O
|
|
Technology
|
SO2-NO2-CO2: UV absorption spectroscopy
NO/H2O: Quantum Cascade Laser (QCL)
|
|
Range
(SO2-NO2-CO2 measurement)
|
SO2 :0 to
500/1000 ppm
NO2: 0 to 500/1000
ppm
CO2: 0 to 10%
(Other measurement range can be customized)
|
|
Range (NO-H2O
measurement)
|
NO: 0 to
500/1000 ppm
H2O: 0-20%
(Other measurement range can be customized)
|
|
Probe MOC
|
SS 316
|
|
Accuracy
|
SO2: 2ppm or 2% of
reading
NO2: 2ppm or 2% of
reading
CO2: 0.1% CO2
NO: 1ppm or 2% of reading
H2O: 0.1% H2O
|
|
Resolution
|
SO2/NO2/NO: 1 ppm
CO2/ H2O: 0.1%
|
|
Protection level
|
IP65
|
|
Probe length
|
300mm/500mm/1000mm
(Customized the length as per site requirements)
|
|
Response time
|
T90 <100 sec
|
|
Analog Output
|
Each parameter 4-20mA output
|
|
Digital
Interface
|
RS485 Modbus
|
|
Ambient
temperature
|
-20 to 55 °C
|
|
Power supply
|
100~240VDC, ±10% FS,50/60Hz
|
|
Purging
|
Instrument Air
|
|
Calibration
facility
|
Using Calibration Standard cylinder
|
|
Work temperature
(Flue gas temperature)
|
0 to 450 °C
|
|
Weights
|
<30 kg
|