Threshold Settings - +Gf+ 2298 Bedienungsanleitung

Instruction manual Type 2298 80 GHz Radar Level Sensor
6.3

Threshold settings

The function is intended for advanced users. Incorrect setting may render the device unable to measure!
The purpose of the threshold value and the threshold line is to mask unwanted echoes from the measurement. Echo peaks below the
threshold level are not taken into account in the evaluation. Setting the threshold may be necessary if the device selects the wrong
echo peak as the level, for example because there is an interfering object in the path of the ultrasound during the measurement.
Before changing the threshold curve, it is recommended to minimize interfering echoes by selecting the correct installation location
of the device.
The threshold can be edited in the Echo diagram window of the EView2 software. In addition, the height of the entire threshold
can be adjusted in a simplified way with the P34 "Threshold offset" parameter among the measurement optimization parameters.
The main threshold line is used to trace the general shape of the echo curve. Threshold highlights, also known as threshold masks,
are available to mask interfering echo peaks protruding from the curve.
The threshold editing mode can be activated either by selecting "Threshold Edit Enable" in the bottom menu bar or by selecting
"Threshold settings" → "Threshold Edit Enable" in the context menu that appears when clicking the right mouse button. In this
case, the threshold editing function bar appears in the upper half of the window, and the editable points are marked red on the
threshold curve. If no editable point is selected, the "Threshold offset" can be set in the function bar, so the height of the basic
threshold curve consisting of three points is the same. If an editable point is selected by clicking the left mouse button, its
position can also be altered separately.
Threshold points can also be moved with the mouse by clicking and holding the left mouse button over the selected point. The chan-
ges only take effect in the device after pressing the "Apply Threshold settings" button, which can also be found in the threshold
editing function bar or the context menu. To display the evaluation corresponding to the new threshold, refresh the chart with the
"Refresh" button in the bottom menu bar (or the F4 function key).
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