NOMEX
Operating Manual - Measurements with the NOMEX Multimeter
D909.131.00/02 en
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7.3
Performing the
Measurement
7.3.1 Starting the Measurement
CAUTION
Operation under unsuitable ambient conditions
or when the NOMEX multimeter is moved.
Erroneous Measurements!
The NOMEX multimeter is a highly sensitive
multi-channel semiconductor detector. For this
reason, cosmic radiation as well as moving the
NOMEX multimeter are capable of starting a
measurement.
Auto-Start:
The NOMEX multimeter is permanently in auto-
start mode. This means that a measurement
begins as soon as a signal is detected. Before,
however, all parameter readings will be set to zero
(auto-reset).
Manual Start:
If the
Start / Stop
option in the
Measure-
ment
menu is enabled, a measurement
can also be started by clicking the
Start
measurement
button on the measuring
window.
7.3.2 Readouts During the
Measurement
The display is updated at 0.5 s intervals.
NOTE
The displayed
Dose per Pulse
result is a value
averaged over all pulses of the sequence.
Therefore, a change of the dose rate during the
measurement will cause erroneous readouts.
7.3.3 Stopping the Measurement
Auto-Stop:
A measurement initiated with auto-start ends
automatically when no measuring signal is
detected for a period longer than the stop delay. It
is not possible to stop the measurement manually.
By clicking the
Reset measurement
but-
ton on the measuring window, you can
abort the measurement and reset the
measured values to zero.
Manual Stop:
A measurement started manually must
be stopped with the
Stop measurement
button on the measuring window.
