PicoQuant GmbH HydraHarp 400 Software V. 3.0.0.1
Warning Histo Mode T2 Mode T3 Mode
WARNING_TIME_SPAN_TOO_SMALL
This warning is issued in histogramming and T3 mode when the
sync period (1/SyncRate) is longer that the start to stop time span
that can be covered by the histogram or by the T3 mode records.
You can calculate this time span as follows:
Histogramming mode: Span = Resolution * 65536
T3 mode: Span = Resolution * 32768
Events outside this span will not be recorded. There are some
measurement scenarios where this condition is intentional and
the warning can be disabled.
√ √
WARNING_OFFSET_UNNECESSARY
This warning is issued in histogramming and T3 mode when an
offset >0 is set even though the sync period (1/SyncRate) can be
covered by the measurement time span without using an offset.
The offset may lead to events getting discarded. There are some
measurement scenarios where this condition is intentional and
the warning can be disabled.
√ √
If any of the warnings you receive indicate wrong pulse rates, the cause may be inappropriate input settings,
wrong pulse polarities, poor pulse shapes or bad connections. If in doubt, check all signals with an oscilloscope
of sufficient bandwidth.
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