NOMEX
Operating Manual - Measurements with the NOMEX Multimeter
58
D909.131.00/02 en
7.3.5.1
Measurements with Very Short
Exposure Times
The measuring amplifiers of the NOMEX multime-
ter are always set to autoranging for the sensitiv-
ity of all channels. During the measurement, the
measuring amplifiers will switch to a higher range
if needed. A short exposure time combined with
the required adaptation of the measuring range for
dose measurements may thus lead to results with
reduced accuracy. In this case, repeat the mea-
surement.
When evaluating the measured data at the end
of the measurement, the NOMEX multimeter is
able to discern whether the exposure time was
too short and whether longer exposure times
are required due to the dead times resulting
from range switching. In this case, the measuring
amplifier range that was used last will be retained
for subsequent measurements because NOMEX
assumes constant signal levels. Thus, measuring
with very short exposure times is possible.
7.3.6 Warning and Error Messages
If the measurement accuracy is reduced (measur-
ing error ≥ 5 %), the information icon and the fol-
lowing warning will be displayed in the status line
of the measuring window:
Figure 20: Status line with warning of reduced
accuracy
If the measured values cannot be determined, the
information icon and one or several error mes-
sages will be displayed in the status line of the
measuring window. The measured values will be
replaced by "
---
".
Figure 21: Staus line with an error message
when the measured values cannot
be determined
For further information, refer to section
