Type of detectors - silicon, spectrometric |
|
Quantity of detectors - 4 (2 measuring and 2 compensating) |
|
| Measurement range in separated measurement mode*: |
|
| – volume activity of alpha-emitting aerosols |
from 0,01 to 2,4·106 Bq/m3 |
| – volume activity of beta-emitting aerosols |
from 0,05 to 3,0·106 Bq/m3 |
| *Sampling time is 24 hours, volume speed of pumping is 40 l/min, equivalent equilibrium volume activity of radon is no more 50 Bq/m3, exposure time is 4 hours, measurement time is 1 hour. |
|
| Measurement uncertainty of volume activity in the separated measurement mode with probability 0,95 |
no more 40% |
| Measurement range in combined measurement mode **: |
|
| – volume activity of alpha-emitting aerosols |
from 0,01 to 4,8·107 Bq/m3 |
| – volume activity of beta-emitting aerosols |
from 0,1 to 1,6·108 Bq/m3 |
| ** Sampling time and measurement is 1 hour, volume speed of pumping is 40 l/min, equivalent equilibrium volume activity of radon is no more 50 Bq/m3. |
|
| Measurement uncertainty of volume activity in the separated measurement mode with probability 0,95 |
no more 40% |
| Energy range of registration: |
|
| – alpha-particles |
from 3,0 to 6,1 МеV |
| – beta-particles |
from 0,1 to 3,0 МеV |
| Air flow rate through a filter |
from 10 to 40 l/min |
| Measurement uncertainty of air flow rate with probability 0,95 |
±7% |
| Types of filter tapes |
ЛФАС, FSLW |
| Power supply of the radiometer from AC mains 50 ± 2 Hz, voltage |
from 187 to 242 V |
| Power consumption: |
|
| – without a pump block |
no more 70 VA |
| – with a pump block |
no more 470 VA |
| Ambient temperature range |
from +5 to +50°C |
| Maximum relative humidity (within 2 hours) |
up to 100% at +50°C |
| Protection class |
not worse IP65
(IP20 for a pump block) |
| Average failure time |
no less 20 000 hours |
| Average service life |
no less 10 years |
| Dimensions |
430x350x190 mm |
| Weight of radiometer: |
|
| – without pump |
no more 33 kg |
| – with pump |
no more 60 kg |
