Troubleshooting - via Controller Keypad
Centurion
Guided Radar
14
False Echo Elimination
Before conducting these steps it is recommended to perform Setup Procedure: Sensitivity Adjustment
Procedure A and ensure mounting requirements are met. Some of the procedures below are performed
automatically by the routine.
1a. Sourcing false echo distance (high level lock)
While the unit is operating and locked onto a false echo you can scroll through diagnostics using the arrow
keys on the keypad. The top line of the display will change but the bottom line will continue to indicate the
standard display mode measurement (such as Space or Material%)
Press the UP arrow until the ‘E:’ diagnostic is displayed. This indicates the depth of the false reading.
1b. Identify signal size of false echo
Press the UP arrow again until the ‘S:’ diagnostic is displayed on the top line. This indicates the signal size of
the echo the unit is measuring (this will be between 0.4V and 2.5V).
2. Eliminating false echo
There are three primary methods of echo elimination.
2-1. Cal Mount:
• If you cannot perform
Sensitivity Adjustment Procedure A
you can manually perform part of this
procedure via ‘
Cal Mount
’ in ‘
Adv Setup’
. You will be prompted to enter the ‘
Cal Start
’ and ‘
Cal End
’
distance. You should enter a distance safely closer and deeper than the false echo. You should not enter a
value longer than the probe.
• If the material in the vessel is touching the probe ensure the ‘
Cal Mount
’ does not pass this depth. The
parameter ‘
CalSnstvty
’ in ‘
Adv Setup
’ can be used to increase or decrease the uniform sensitivity of the ‘
Cal Mount
’ span.
• After the
Cal Mount
is complete press
RUN
several times to return to unit operation. The unit will then begin
to scan deeper down the length of the cable to find the next valid echo.
Space
2.622m
Matrl%
74.0%
E:
0.4
110.7%
S: 0.74V
110.7%
Depth
Material%
Space
2.622m
Matrl%
74.0%
E:
0.4
110.7%
S: 0.74V
110.7%
