Pulsar dBi-M, Instruction Manual

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PULSAR MEASUREMENT
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Gate and Measurement line
The distance line shows which echo is being selected for the measurement.
The vertical blue lines remain fixed at either side of the distance line, and act
as a stability mechanism to filter out any momentary echoes from passing
machinery/stirrers etc.
DATEM (Digital Adaptive Tracking of Echo Movement)
The (Blue) DATEM trace acts as a threshold which defines if echoes are
considered as candidates for measurement. Any echo whose peak is below
the DATEM line, will not be considered for measurement. In effect the
transducer will not “see” it.
Measurement marker
Gate
Level
Distance