DATREND Systems venTest, Руководство по эксплуатации

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venTest OPERATORS MANUAL
This measurement though will also cause a measuring error because the volume that flows
through the sensor before the trigger threshold has been reached is not being measured. The
same happens to the volume which is still flowing while the flow is dropping under the trigger
threshold.
This means that with a trigger threshold set too high, the volume measurement displayed may be
much too low if you have error triggering or fluctuating measuring values from measurement to
measurement when the trigger threshold is set too low. So the trigger threshold can only be a
compromise between accuracy and error triggering.
Often one can set certain time criteria and/or time delays which suppresses error triggering by
unwanted flow peaks caused, for instance, by switching values.
Appendix A
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