SARAD
GmbH
Thoron-Scout
Manual_ThoronScout_EN_02-07-15.doc
6
The remaining capacity is 15 ... 25% depending on the chemistry of the used cells. After
pressing the Toggle button display presents measurement results as usually. If longer
measurements are planned, the batteries should be replaced before to avoid unexpected
measurement break. If the cell voltage drops further, below 0.9 Volts, the running sample is
stopped automatically and the device enters the stand-by mode with “CHANGE BATTERIES”
indication.
CHANGE BATTERIES
Thoron-Scout
SN:00256
CHANGE BATTERIES
After plugging the power supply and waiting one minute the measurement can be started
anew.
The uptake of power during stand-by is about 15 – 20 % of a measurement. Anyway: In case
of storage of the instrument without usage, batteries should be removed.
Carrying out a measurement
Press short the Toggle button to start a new measurement series. The display will show the
remaining time to complete the first integration interval.
Thoron-Scout
SN:00256
Wait 120 Minutes
for first data !
The actual status and set-up information (see below) may be displayed by pressing the
button again.
If the first interval has been completed, five different display pages are available. The several
pages can be toggled by repeated pressing of the Toggle button. Depending on the selected
system of units, the concentration values are given either in ‘Bq/m³’ or ‘pCi/L’ (mbar/inHg,
°C/°F)
The first page shows the actual Radon concentration (calculated for the last sampling
interval) with the statistical error for a 1 Sigma confidence interval. If the “Fast” mode was
selected, a starlet is appended to the word “Radon” in the first row. Right beside, the time
stamp is given when the integration interval of the calculated concentration was finished
The third row contains at the left hand side the total number of integration intervals since the
last start of a measurement series. At the right hand side the pre-set integration interval and
the remaining time period of the actual sample is displayed.
Radon* 12:20
85Bq/m³
±
10%
#34 117/120Min
TSC-00256
Page two gives the same information for Thoron (Rn-220)
Thoron 12:20
124Bq/m³
±
16%
#34 117/120Min
TSC-00256
