Empty Signal Scan - FlowLine EchoWave LG10 Series Manual

Empty Signal Scan

EMPTY SIGNAL SCAN
The Empty Signal Scan is a powerful disturbance signal suppression feature of EchoWave
its entire probe length for any disturbance/interference signals within the application that could potentially be
misinterpreted as level readings by memorizing and suppressing them during operation. Therefore, the
LG10/LG11 series only recognizes the actual level signals caused by the liquid being measured.
The Empty Signal Scan is intended for the rod & cable probe, since its signal has a wider detection
radius around the probe making it more responsive for measurement signal disturbances. An
Empty Signal Scan is typically not required for the coaxial probe.
The Empty Signal Scan works most efficiently on stationary interference targets like tall and narrow risers or
close-by objects/obstructions. To enable an Empty Signal Scan, the EchoWave
position. The tank has to be completely empty. This will ensure a reliable identification of the actual
disturbance signals only. In case there are non-stationary interference targets close to the rod probe (slowly
rotating agitator blades or streams of liquid filling into the tank), it is recommended to use the coaxial probe.
ACTIVATE EMPTY SIGNAL SCAN
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When EchoWave is shipped, this feature is deactivated. To initiate a
Empty Signal Scan, use the following instructions:
1. Make sure the LG10/LG11 series is installed in its final
installation position.
2. Make sure the liquid is at its lowest level (empty).
a. Performing an Empty Signal Scan when the tank is not
empty will create an incorrect scan. It can affect the
sensors performance especially at liquid levels below the
Empty Signal Scan tank level.
3. Press and hold the SCAN button for 6 seconds.
a. The LED will begin to flash Orange indicating the empty
signal scan has begun, release the button.
b. Upon completion of the empty scan, a solid green LED will return
c. If the empty scan is not successful. The LED will flash red
ERASE EMPTY SIGNAL SCAN
If there is a need to erase or turn off the Empty Signal Scan, perform the following: First remove power to the
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EchoWave . Next, hold down the SCAN button while applying power to the sensor. When the LG10/LG11
series acquires a signal (LED will flash Green), the disturbance signal scan will be erased.
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No other setting or functions will be affected when this step is preformed.
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The Empty Signal Scan cannot be retrieved once erased.
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A new disturbance signal scan must be preformed for this function to operate again.
The Empty Signal Scan can also be erased using WebCal
following page.
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software. Please refer to the instructions on the
Section Six
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. The sensor scans
has to be mounted in its final
MN300840 REV A8