DAG 500 gas analyzer
PURPOSE AND APPLICATION AREA
The DAG-500 gas analyzer is designed for measuring concentrations of carbon monoxide, oxygen, sulfur dioxide, nitrogen oxides, nitrogen dioxide, temperature measurement, pressure / rarefaction and soot content in gas emissions of fuel-burning plants.
DESCRIPTION
1. The DAG-500 gas analyzer is an automatic portable multichannel indicating continuous instrument.
2. The measuring part of the DAG-500 gas analyzer uses a method for analyzing multicomponent gas mixtures using a set of electrochemical sensors that have selective sensitivity to various components of the gas mixture and generate electrical signals proportional to the concentration of the components measured.
3. The flue gas temperature is measured by means of a thermocouple XA (K) placed in the controlled area.
4. Constructively the DAG-500 gas analyzer is made in the form of a rectangular measuring unit with a keyboard and a display on the front panel. On the end panel of the gas analyzer there are:
• connector for external power supply "+ 12V";
• connector for probe connection with thermocouple;
• a connector for connecting a cable to communicate with a computer or an external printer;
• connector for connecting an external sensor cable;
• connection for gas sampling;
• Pressure / vacuum connection.
5. The DAG-500 gas analyzer is designed for operation in explosion-proof conditions in continuous, short-term, short-time modes.
6. The measurement results (in%, mg / m3, ppm) can be stored in non-volatile memory, output to an external printer or an IBM PC type computer through the RS232 interface.
7. The DAG-500 gas analyzer has the ability to connect external sensors.
MAIN TECHNICAL CHARACTERISTICS
The DAG-500 gas analyzer provides measurement of the parameters of flue gases with characteristics in accordance with Table. 1.
Table 1.
|
Determined component |
Measuring range |
Limits of the allowed basic error |
Nominal price of the unit of the smallest category |
|
|
Absolute |
Relative |
|||
|
Oxygen (O2) |
0 – 21 % |
± 0,2 % |
– |
0,1 % |
|
Carbon monoxide (CO) |
0 – 30 000 ppm |
± 300 ppm (0 – 6000 ppm) |
± 5 % (6000 – 30 000 ppm) |
1 ppm |
|
0 – 6 000 ppm |
± 60 ppm (0 – 1200 ppm) |
± 5 % (1200 – 6 000 ppm) |
1 ppm |
|
|
0 – 2 000 ppm |
± 20 ppm (0 – 400 ppm) |
± 5 % (400 – 2 000 ppm) |
1 ppm |
|
|
0 – 1 000 ppm |
± 10 ppm (0 – 200 ppm) |
± 5 % (200 – 1 000 ppm) |
1 ppm |
|
|
0 – 500 ppm |
± 5 ppm (0 – 100 ppm) |
± 5 % (100 – 500 ppm) |
1 ppm |
|
|
Nitric oxide (NO) |
0 – 2 000 ppm |
± 40 ppm (0 – 400 ppm) |
± 10 % (400 – 2 000 ppm) |
1 ppm |
|
0 – 1 000 ppm |
± 20 ppm (0 – 200 ppm) |
± 10 % (200 – 1 000 ppm) |
1 ppm |
|
|
0 – 500 ppm |
± 10 ppm (0 – 100 ppm) |
± 10 % (100 – 500 ppm) |
1 ppm |
|
|
0 – 250 ppm |
± 5 ppm (0 – 50 ppm) |
± 10 % (50 – 250 ppm) |
1 ppm |
|
|
Nitrogen dioxide (NO2) |
0 – 100 ppm |
± 3 ppm (0 – 20 ppm) |
± 15 % (20 – 100 ppm) |
1 ppm |
|
0 – 50 ppm |
± 2 ppm (0 – 10 ppm) |
± 15 % (10 – 5 ppm) |
1 ppm |
|
|
Sulfuric anhydride (SO2) |
0 – 4 000 ppm |
± 80 ppm (0 – 800 ppm) |
± 10 % (800 – 4 000 ppm) |
1 ppm |
|
0 – 2 000 ppm |
± 40 ppm (0 – 400 ppm) |
± 10 % (400 – 2 000 ppm) |
1 ppm |
|
|
0 – 1 000 ppm |
± 20 ppm (0 – 200 ppm) |
± 10 % (200 – 1 000 ppm) |
1 ppm |
|
|
0 – 500 ppm |
± 10 ppm (0 – 100 ppm) |
± 10 % (100 – 500 ppm) |
1 ppm |
|
|
Gas flow temperature |
-20 – +800 оС |
± 3 оС (-20 – +300 оС) |
± 1 % (300 – 800 оС) |
1 оС |
|
Ambient temperature |
0 – 60 оС |
± 1 оС |
– |
1 оС |
|
Pressure / vacuum |
± (0–5,0) KPa |
± 0,02 KPa (0...0,4 KPa) |
± 5% (0,4...5 KPa) |
1 Ра |
|
Carbon dioxide (CO2) |
Not standardized (Determination by calculation) |
|||
• The limit of the permissible variation of indications, bd, is 0.5 of the limit of the permissible error.
• Warm-up time, s, not more than 240
• Settling time, s, not more than 180
• Interval of operating time without correction of readings, h 1000
• Supply voltage, V (220)
• Power consumption, W, not more than 10
• Mains frequency, Hz (50 ± 1)
• Mean time between failures, hour, not less than 10000
• Average service life, years, not less than 8
• Overall dimensions, mm, not less than 220х105х65
• Weight, kg, not more than 1,5
Terms of Use:
• Operating temperature range, оС 10 - 40
• Relative humidity, 10 -85
• atmospheric pressure, kPa 91-105.|
Определяемый компонент |
Диапазон измерений |
Пределы допускаемой основной погрешности |
Номинальная цена единицы наименьшего разряда |
|
|
абсолютной |
относительной |
|||
|
Кислород (O2) |
0 – 21 % об. |
± 0,2 % об. |
– |
0,1 % об. |
|
Оксид углерода (CO) |
0 – 30 000 ppm |
± 300 ppm (0 – 6000 ppm) |
± 5 % (6000 – 30 000 ppm) |
1 ppm |
|
0 – 6 000 ppm |
± 60 ppm (0 – 1200 ppm) |
± 5 % (1200 – 6 000 ppm) |
1 ppm |
|
|
0 – 2 000 ppm |
± 20 ppm (0 – 400 ppm) |
± 5 % (400 – 2 000 ppm) |
1 ppm |
|
|
0 – 1 000 ppm |
± 10 ppm (0 – 200 ppm) |
± 5 % (200 – 1 000 ppm) |
1 ppm |
|
|
0 – 500 ppm |
± 5 ppm (0 – 100 ppm) |
± 5 % (100 – 500 ppm) |
1 ppm |
|
|
Оксид азота (NO) |
0 – 2 000 ppm |
± 40 ppm (0 – 400 ppm) |
± 10 % (400 – 2 000 ppm) |
1 ppm |
|
0 – 1 000 ppm |
± 20 ppm (0 – 200 ppm) |
± 10 % (200 – 1 000 ppm) |
1 ppm |
|
|
0 – 500 ppm |
± 10 ppm (0 – 100 ppm) |
± 10 % (100 – 500 ppm) |
1 ppm |
|
|
0 – 250 ppm |
± 5 ppm (0 – 50 ppm) |
± 10 % (50 – 250 ppm) |
1 ppm |
|
|
Диоксид азота (NO2) |
0 – 100 ppm |
± 3 ppm (0 – 20 ppm) |
± 15 % (20 – 100 ppm) |
1 ppm |
|
0 – 50 ppm |
± 2 ppm (0 – 10 ppm) |
± 15 % (10 – 5 ppm) |
1 ppm |
|
|
Сернистый ангидрид (SO2) |
0 – 4 000 ppm |
± 80 ppm (0 – 800 ppm) |
± 10 % (800 – 4 000 ppm) |
1 ppm |
|
0 – 2 000 ppm |
± 40 ppm (0 – 400 ppm) |
± 10 % (400 – 2 000 ppm) |
1 ppm |
|
|
0 – 1 000 ppm |
± 20 ppm (0 – 200 ppm) |
± 10 % (200 – 1 000 ppm) |
1 ppm |
|
|
0 – 500 ppm |
± 10 ppm (0 – 100 ppm) |
± 10 % (100 – 500 ppm) |
1 ppm |
|
|
Температура газового потока |
-20 – +800 оС |
± 3 оС (-20 – +300 оС) |
± 1 % (300 – 800 оС) |
1 оС |
|
Температура окружающей среды |
0 – 60 оС |
± 1 оС |
– |
1 оС |
|
Давление/разряжение |
± (0–5,0) кПа |
± 0,02 кПа (0...0,4 кПа) |
± 5% (0,4...5 кПа) |
1 Па |
|
Диоксид углерода (CO2) |
не нормированы (определение по расчету) |
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