analyzersOptical gas analyzer PEM-2M
Purpose
The complex is used as channels of continuous emission monitoring system, CEMS.
Advantages
- A possibility of switching in outer devices (dust counter, flowmeter)
- Stepwise measurements from several sources (optional);
- Flexible customized configuration of the complex
The work principle
The complex is a stationary automated multi-channel instrument for measuring of continuous action.
Applied measurement methods:
- The optical absorption method in the infrared spectral region (non-dispersive infrared, NDIR) to identify: - carbon oxide (CO),
- nitrogen oxide (NO),
- nitrogen dioxide (NO2),
- nitrogen oxides NOx (in equivalent of NO2),
- sulfur dioxide (SO2),
- carbon dioxide (СО2),
- The electrochemical method based on zirconium dioxide to identify oxygen (О2),
The PEM-2M.1 consists of:
An analytics box with a sample preparation system
- A probe with a heated filter
- A heated sampling line
- Aspiration modules
Gas switch (for switching several measurement points)
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1-Sampling probe with heated filter 2-PEM-2M. 1-gas analyzer in Cabinet with sample preparation system 3-heated sampling Line 4-aspiration Module with compressor and receiver 5-aspiration Line |
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Configuration for 3 gas ducts Gas duct/pipe #1 Optional PEM-2M.1 is placed in a heated shelter (block-box) PEM-2M.1 – gas analyzer in a box with a sample preparation system |
Metrological and technical characteristics
|
Measurement channel (component or parameter to be determined) |
Indication range, million-1 (volume fraction, %) |
Measurement range volume fraction 1), mln-1 (volume fraction, %) |
Limits of maximum permissible error |
|
|
Absolute error |
Relative error |
|||
|
О2 |
from 0 to 25 % (vol.) |
from 0 to 5 % (vol.) inclusive over 5 to 25 % (vol.) |
±0.12 % vol. - |
- ±2.5 % |
|
СO2 |
from 0 to 30 % (vol.) |
from 0 through 5 % (vol.) over 5 to 30 % (vol.) |
±0.25 % vol. - |
- ±5 % |
|
CO |
from 0 to 500 million-1 |
from 0 through 50 million -1 over 50 to 500 million -1 |
±2.5 million-1 - |
- ±5 % |
|
from 0 to 2500 million -1 |
from 0 through 100 million -1 over 100 to 2500 million -1 |
±5 million -1 - |
- ±5 % |
|
|
SO2 |
from 0 to 500 million -1 |
from 0 through 50 million -1 over 50 to 500 million -1 |
±4 million -1 - |
- ±8 % |
|
from 0 to 3500 million -1 |
from 0 through 100 million -1 over 100 to 3500 million -1 |
±8 million -1 - |
- ±8 % |
|
|
NO |
from 0 to 500 million -1 |
from 0 through 50 million -1 over 50 to 500 million -1 |
±4 million 1 - |
- ±8 % |
|
from 0 to 1500 million -1 |
from 0 through 100 million -1 over 100 to 1500 million -1 |
±8 million -1 - |
- ±8 % |
|
|
NO2 |
from 0 to 500 million -1 |
from 0 through 50 million-1 1 |
±4 million -1 - |
- ±8 % |
|
from 0 to 1000 million -1 |
from 0 through 100 million-1 over 100 to 1000 million -1 |
±8 million -1 - |
- ±8 % |
|
|
NOх (in equivalent NO2)2) |
from 0 to 500 million -1 |
from 0 through 50 million -1 over.50 to 500 million -1 |
±4 million -1 - |
- ±8 % |
|
from 0 to 2500 million -1 |
from 0 to 100 million -1 over100 to 2500 million -1 |
±8 million-1 - |
- ±8 % |
|
|
Temperature of analyzed sample |
from 0 to 900 ˚С |
from 0 trough 300 ˚С over300 to 900 ˚С |
±4.5 ˚С - |
- ±1.5 % |
Technical characteristics
|
Parameter |
Value |
|
Ambient condition in place of installation of PEM-2M.1: |
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|
Ambient temperature range, °С |
from 5 to 40 |
|
Atmospheric pressure range, kPa |
from 84.0 to 106,7 |
|
Range of relative ambient air humidity at temperature 35 °С without water condensation, % |
from 30 to 90 |
|
Analyzed ambient characteristics |
|
|
Analyzed ambient temperature, °С, max |
900 |
|
Water content (at temperature not higher than 200 °С, without water condensation), % vol., max |
20 |
|
Concentration of mechanical admixtures, g/m3, max |
10 |
|
Electric supply – monophase alternating current, with frequency (50±1) Hz, voltage, V |
230±23 |
|
Power input, kW, max |
5 |
|
Average time between failures in operation, including maintenance time, h (confidence probability Р=0.95) |
24000 |
|
Average service life, years |
10 |