Ronan XSD-1000 - Manual (Page 50)

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Reports – Detector Sensitivity Checks
This report will list the last Sensitivity Check performed compared to the one previous to
it, and give an assessment of pass or fail by comparing the percent difference between
these two readings. The ‘First’ value will also be listed as a reference.
Note that if you replace a detector, it becomes the current with no history when a
Detector Sensitivity Check is performed. Immediately after replacing a detector, a
Sensitivity Check should be done for that detector to establish a reference for the normal
periodic Sensitivity Check to determine its validity.
The report has two halves: the left half is based on background averages (or Norm).
This test verifies the low-level sensitivity of the detector. The right half is an assessment
with your Test Source, and validates the gain of the detector. It is important to perform a
‘Replace Test Source’ at system installation so the system can determine the amount of
source decay to apply when performing the periodic Sensitivity checks.
The above report shows that only one Detector Sensitivity Check has been performed.
Therefore, there is no ‘Delta%’ nor ‘Allow%’ nor ‘Passed?’.