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Radon Soil Probe is adapted for insertion into a bore hole of minimum diameter 50mm and for
operation in places with increased humidity as are caves and mines. Two probe chambers are filled with
replaceable special dehumidifier for decreasing of humidity in measuring chamber if the probe operates in
humidity environment with relative humidity above 90%. If it operates in humidity environment with
relative humidity above 90% the dehumidifier needs to be replaced or dried. If the relative humidity of
environment is above 90%
and temperature 10 °C
the change interval of dehumidifier is 6 weeks. The
accumulator will last for up to 1 year after one full charging ensuring autonomous operation of the probe
within the bore. It depends on frequency of wireless data downloading from probe and on humidity
condition also.
The TSRP3 Radon Soil Probe is designed to continually measure radon volume activity in soil. Soil radon
concentration changes may precede certain behavior of Earth’s crust and various elements in the bedr
ock.
For example, long-term monitoring of the soil gas radon concentration can be used to predict seismic
activity or earthquakes.
Portable probe basis is a measuring chamber with a semiconductor photodetector. Radon enters the
chamber by diffusion through the input filter on the bottom of probe. The probe measures in autonomous
and time continuous way. It processes results every 2-minute intervals and from this counts short-term
moving average of radon concentration ( 1 hour moving average - average of 30 2-minute process
intervals). It also counts long-term moving average of radon concentration (24 hours moving average). The
probe saves time records of these radon concentration values including values of humidity and temperature
within its internal memory (typically at an interval of 1 hour). Next saved value is time record of measuring
energy spectrum (typically at an interval of 12 hours). Bottom of the probe cannot be covered. The probe
permanently measures and saves data into internal memory if accumulator is charged.
LEDs „
STAT
“ indicate
current status of probe see
´
Operation manual
´
below.
The resulting values can be downloaded continuously during measurement or at once at the end of
measurement. Data from the radon probe can be downloaded to a PC directly via USB interface or
wirelessly via antenna and Central Unit. Central Unit is not included with package of probe and it is sold and
delivered extra.
