Download MODEL 602 BETAPLUS

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External temperature values during the sampling process (minimum, average and
maximum)
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Temperature values near the accumulation area (minimum, average and maximum)
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Average Relative Humidity in the sample accumulation area
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Maximum difference between the external temperature and the temperature inside the
sample accumulation area
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Date and time of the maximum detected temperature difference
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Duration of the period for which the temperature difference exceeded the 5 K (Kelvin)
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Average value of the difference between the external temperature and the temperature
inside the accumulation area
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Measurements of the environmental conditions in the accumulation area are helpful
for evaluating the conditions at the filter when it is not being sampled. These
conditions represent the filter holding (between sampling cycles) and analysis
periods.
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Atmospheric pressure values (minimum, average and maximum)
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Value of the “RDS” variable which describes the stability of the flow rate value at the
sampling head inlet (see section 2.4)
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Initial, final and maximum values of the filter medium load drop (see sections 2.4 and 5.5)
Mass Measurement Information Pertaining to a Single Sampling and Measurement Cycle
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Value of the background noise “Dark”
If the ß electron flux measured by the Geiger Müller detector with shielded source is not
within the range of 1 to 250 counts per minute (see section 2.6.1), a Warning message
will be displayed (Warning 19, Appendix 3)
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“Air counts” value (Blank session)
The measurement of the ß-particle flux without a filtering medium placed between
source and detector gives information that is useful for determining possible drifting of
the Geiger Müller response
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Value of the ß-particle flux through the spy filter, measured during the Blank session, and
associated standard deviation
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Value of the ß-particle flux through the unused filter during the Blank session and
associated Standard Deviation
This value must be between 20000 cpm and the value of the “air counts” (Warning 17,
Appendix 3)
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Temperature, pressure and relative humidity inside the measurement area during the Blank
session
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Geiger Müller high voltage value (see section 2.6)
To ensure correct functionality of the detector, this value must lie between 585 V and
615 V, and the associated standard deviation must be lower than 1 V (Warnings 15 and
16, Appendix 3)
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