PeakTech 4105 Bedienungsanleitung Seite 127

5.18.2 Non-continuous Signal
Non-continuous signal, take a burst signal for example, is not available for the measurement of
frequency, period, pulse width and duty cycle but only for measurement of cycle number.
Press 〖Count On/Off〗softkey then select 'On' to enable the counter. Firstly clear the count value
then totalize count begins. Select 'Off' to disable the counter. To get a accurate measurement, turn
counter off when disable the input signal.
Once turn on counter, the setting of gate time is ignored.
5.18.3 Gate Time
Press 〖Gate Time〗softkey then select 'Gate Time' to configure the desired gate time. The gate
time indicates the sampling interval time of tes ted signal, the longer the gate time is, the
more the sampling data, so the users may get more stable measurement result and higher
measurement resolution. And the shorter the gate time is, the better the tested signal is
tracked, but short gate time will result in low measurement resolution. Generally, gate time
should be longer than the period of tested signal.
5.18.4 Trigger Level
Press 〖Trig level〗 softkey then select 'Trig levl' to configure the desired trigger level value.
Set the trigger level to be 0 if using AC coupling and adjust the trigger level if using DC
coupling. The influence for trigger level adjustment is small if the amplitude of tested signal
is higher. But if the amplitude of measured signal is lower or frequency is higher, you need
adjust the trigger level carefully to get a better result.
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