The parameters in detail:
Name Nuclide name.
Active Change the status to passive or active.
Radiation type Shows the type of radiation of the nuclide ( or orγ or n).
Mass number Physical mass number of the nuclide or order of the measure-
ment type (1, 2, 3, ……)
Unit Unit of measurement, e.g. cps, Bq/cm², µSv/h, mrem/h etc.
Calibration factor (A-100) Calibration factor according to DIN 25415 standard relative to
an area of 100 cm². For gross or net, the calibration factor is
always "1". The second calibration factor appears only for con-
tamination probes; for all other probes there is only one calibra-
tion factor.
Calibration factor (ISO) Calibration factor according to DIN ISO 7503-1 standard. For
gross or net, the calibration factor is always "1". The second
calibration factor appears only for contamination probes; for all
other probes there is only one calibration factor.
Alarm threshold An alarm threshold can be set for the individual nu-
clides/measurement types.
If the stored alarm threshold is exceeded during a measure-
ment, the measured values and the top LED start flashing and
you will hear a permanent alarm, which will be turned off only
when you quit the measurement mode or when the measured
value has dropped below the alarm threshold. Moreover, the
exceeding of the alarm threshold is also indicated on the bar
graph: The percent indication is switched over using the factors
10, 100 and 1000, so that it is immediately apparent by which
factor the entered threshold has been exceeded.
Limit values Under the Radiation Protection Ordinance of August 1, 2001 in
Germany the limit values for contaminations are nuclide-
specific. In operational monitoring areas, these limit values are
10x higher than outside the monitored area. May be different in
other countries.
Examples for limit values outside monitored areas in Bq/cm²:
C-14: 100
S-35: 100
Ca-45: 100
Fe-55: 100
Ni-63: 100
Tc-99: 10
Tl-201: 10
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