Continuous Emission Monitoring System Cems
Continuous Emission Monitoring System CEMS The analyzer based on UV absorption spectroscopy and chemometric algorithms to measure SO2, NOx, O2, NH3, Cl2, O3, H2S and other gases concentration, with high accuracy, high reliability, fast response time, wide application and other characteristics, the i......
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Product Description
Continuous Emission Monitoring System CEMS
The analyzer based on UV absorption spectroscopy and chemometric algorithms to measure SO2, NOx, O2, NH3, Cl2, O3, H2S and other gases concentration, with high accuracy, high reliability, fast response time, wide application and other characteristics, the indicators have reached or exceeded similar products, it can be widely used in environmental online monitoring, industrial control, security monitoring and other occasions.
>>>Key Features
Full spectrum measurement and DOAS (Differential Optical Absorption Spectroscopy) algorithm, excelling in accuracy, repeatability and anti-interference with moisture, dust.
Modular design and no moving parts, higher reliability and easier maintenance.
Pulse Xenon Lamp used as light source with over 10-year lifetime.
The adoption of diode array sensor enables instant spectrum acquisition and rapid response.
>>> Features and Benefits1. Analyzer uses the following optical technology platform to get the UV absorption spectrum, the technology platform consists of light source, gas chamber, fiber optics and spectroscopy (including the diaphragm, holographic gratings, linear array detector) and other optical components.
2. UV-visible light emitted by the optical window into the gas chamber, is absorbed by the sample gas flowing through the measured gas chamber, carrying the tested sample gas absorbs light through the lens after gathering information coupled into optical fiber through the optical fiber transmission into the spectrometer splitting, sampling, to obtain the absorption spectrum of the gas.
3. Use DOAS technology spectrum analysis, can analyze the concentration of the gas in the relevant component.
>>> Measuring principle
1) The light source emits ultraviolet beam which transfers to gas cell through optical fiber.
2) After absorption by measuring gas, the light beam transfers through optical fiber to spectrometer.
3) Being dispersed through the grating, and converted into electric signal by the array sensor, a continuous absorption spectrum of measuring gas is thereafter obtained.
>>>Technology Comparison
| Item | UV Hot-Wet Method | NDIR |
| Spectral Range | Complete and continuous absorption spectra obtained through holographic grating and diode array detection | Non Dispersive, characteristic absorption spectra obtained through band-pass filter |
| Linear Response | High wavelength resolution secures linear response | band-pass filtration compromises linear response |
| SO2 Loss | Hot-wet prohibits SO2 dissolution | Condensation inevitably causes SO2 loss |
| Sampling System | Heat tracing. Requests only dust filtration, simple and no corrosive | Cold-dry. Requests dust filtration, condensation, water removal and corrosion proof |
| Zero Calibration Period | Long (DOAS algorithm) | Short |
| Anti-Interference | The combination of complete & continuous absorption spectra, high wavelength resolution, DAOS algorithm erases interference from dust, moisture and background gases | Vulnerable to moisture interference |
| Gas Cell | Connected by optical fiber, easy to replace and low maintenance cost | Complex to replace and maintenance |
| Maintenance | ||
| Reliability | No moving parts | Moving parts existed |
>>>Technical Specifications
| SO2, NOx Analyzer | |
| Technical Principle | UV-DOAS |
| Installation type | Hot-wet Extractive |
| Measurement Range | 0~200ppm, 0~1000ppm, 0~3000ppm |
| Zero Drift | ≤ ±2%F.S. |
| Span Drift | ≤ ±2%F.S. |
| Accuracy | ≤ ±1% |
| Response Time(T90) | ≤ 60s |
| Linearity | ≤ ±1%F.S. |
| O2 Analyzer | |
| Technical Principle | Zirconia/Electrochemical |
| Measurement Range | 0~25% |
| Response Time(T90) | ≤ 60s |
| Linearity | ≤ ±2%F.S. |
| CO, CO2 Analyzer | |
| Technical Principle | NDIR |
| Installation type | Extractive |
| CO Measurement Range | 0~1000 ppm |
| CO2 Measurement Range | 0~20% |
| Zero Drift | ≤ ±2%F.S. |
| Span Drift | ≤ ±2%F.S. |
| Accuracy | ≤ ±1% |
| Response Time(T90) | ≤ 60s |
| Linearity | ≤ ±2%F.S. |
Technical Data for UV gas analyzer
| Project | Indicators |
| SO2 Detection range | Min:0-50ppm,Max:0-100%, |
| NO Detection range | Min:0-50ppm,Max:0-100%, |
| O2 Detection range | 0-25%, Electrochemical or zirconia |
| Linearity error | ≤±1%F.S. |
| Repeatability | ≤1% |
| Zero drift | ≤±1%F.S./ week |
| Span drift | ≤±1%F.S./week |
| Ambient temperature | 5ºC~45ºC |
| Response time(T90) | <60s |
| Size | 19" *3U*320mm |
| Analog interface | 3-way 4-20mA output,2-way 4-20mA output |
| Data interface | 4-way switch input; 8-way relay output |
| Communication Interface | 1-way RS-232,1-way RS-485(Supports Mod-bus protocol) |
| Power | 220VAC/50Hz 100W |
| Protection grade | IP42 |
| Sample gas input and output interface | Ø6 Tube Fittings |
>>> FAQ
1.How about the Delivery time?
Samples will be prepared within 15 Days after 100% T/T in advance payment. QTY order will be delivered in 30 days.
2.What kind of payments does KELISAIKE support?
T/T, L/C, Western Union, Cash are accepted.
3.What's the MOQ?
Generally speaking, the MOQ is 5PCS, but we also can provide you samples for quality inspection.
4.Do you charge for the samples?
According to our company policy,we just charge the samples based on EXW price.
5.Can you produce according to customers' design?
Suce, we are professional maunfacturer, OEM is welcome
>>>Company View
Nanjing KELISAIKE company is one of the largest safety equipment manufactures, possesing the most complete production range and specifications in the safety equipment industry of mainland China. Nanjing KELISAIKE was founded in 2004, including three subsidiaries in Beijing, Xi'an and Xinjiang, and more than 30 domestic sales service centers, with total registered capital of 5.16 million Yuan. Standard products and services cover the portable gas detector, fixed gas transmitter, wall-mounted gas detector, gas detector control unit, air breathing apparatus etc. Also Nanjing KELISAIKE is an experienced factory for OEM service, providing professional design and construction of the customize products. The products are widely used in fields of petroleum, chemical, gas transmission and distribution, warehousing, municipal gas, fire fighting, environmental protection, metallurgy, pharmacy, energy and power industry.
Nanjing KELISAIKE has passed IS9001 International Quality System Certification, which ensures all products' excellent performance and competitive prices.
KELISAIKE Faith
People-oriented and technology-innovated
KELISAIKE Principle
Quality first, integrity-based
