NOMEX
Operating Manual - Measurements with the NOMEX Multimeter
D909.131.00/02 en
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7.3.7 Session Comment
By default, the NOMEX multimeter settings are
saved as comments with each measurement.
•
If you want to enter another comment, click the
appropriate measurement data set in the mea-
suring table and select the
Edit comment
con-
text menu.
➔
The
Edit comment
dialog will be displayed.
•
Enter the desired comment and click
OK
.
7.4
Determining the
Measured Values
Sensitivity Mode
Normal
During the measurement, the measured values
are stored in the internal log memory.
From the values stored in the memory, the pro-
gram determines the measurement results for the
following parameters:
– mean peak voltage (mean kVp)
– maximum peak voltage (maximum kVp)
– practical peak voltage (PPV)
– half value layer (HVL)
– tube voltage waveform
– dose rate waveform.
With the maximum sampling rate of 2 kHz, the
memory depth (maximum measuring time) is
3.2 seconds. When the memory is full, the subse-
quent measured values will not be included in the
determination of the measured value.
NOTE
If all values measured over a long exposure
time are to be included in the determination of
the measured value, make sure to set a match-
ing sampling rate.
Example:
measurement over a total exposure time of
10 seconds, with a radiation of 100 kV in the
first 5 seconds and a radiation of 150 kV in the
last 5 seconds.
At a sampling rate of 2 kHz, only the first
3.2 seconds would be included in the measured
value and the kVp result would be 100 kV.
