AUTOMATIC STATION OF ECOLOGICAL CONTROL
METROLOGICAL CHARACTERISTICS
BASIC PERFORMANCE SPECIFICATION
STATE OF ASEC DEVELOPMENT
 
 
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AIR POLLUTION MONITORING
BASIC METROLOGICAL CHARACTERISTICS
OF MEASURING CHANNELS

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Atmospheric composition parameters measured by ASEC

Measured parameter,
unit of measurement

Measurements range

Measurement accuracy
(basic error)

Nitric oxide (NO) concentration,
mg/m3

0 - 10 25 %

Nitrogen dioxide (NO2) concentration,
mg/m3

0 - 10 25 %

Nitrogen oxides (NOX) concentration,
mg/m3

0 - 10 25 %
Carbonic oxide (CO) concentration,
mg/m3
0 - 50 (0.5+0.08*Cmeas) mg/m3
Sulfur dioxide (SO2) concentration,
mg/m3
0.025 - 1.0 25 %

Hydrocarbons (CH) amountconcentration,
mg/m3

0 - 50 1 mg/m3
in the range of (0 - 5) mg/m3;
(0.2 *Cmeas) mg/m3
in the range of (5 - 50) mg/m3
Methane (CH4) concentration,
mg/m3
0 - 50

Non-methane hydrocarbons (NCH) concentration, mg/m3

0 - 50

Where (Cmeas) - measured concentration of atmospheric parameter being defined

Meteorological parameters and gamma background exposure dose
power measured by ASEC

Measured parameter,
unit of measurement

Measurement range

Measurement accuracy
(basic error)

Wind velocity (V),
m/s
1 to 50 (0.5 + 0.05*V),
where V - measured wind velocity

Wind direction,
degrees

0 to 360 5 degrees
at V>5 m/s

Pressure,
mmHg

450 to 825 0.8
Temperature,
C
- 40 to + 60 1
Relative humidity,
%
3 to 98 3

Exposure dose of gamma radiation

5 R/h to 20 mR/h 25 %

NOTE:

by request of the Customer changes may be introduced in the measurement instruments (gas analyzers) of ASEC in terms of increasing and decreasing the number of measured parameters with appropriate matching of mounting points, operating conditions, current consumption values, types and values of output signals. In particular, RSC Energia finalizes its work on measurement systems designed to measure dust, volumetric activity of radioactive gases and aerosols and other environmental parameters.

 

 

 

 

 

 

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