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Enter the service code (552621) and change the following parameters.
If you have not done so already choose Solids in P102.
This will also change the following parameters.
P71 = Update Datem = 0.
P88 = Fixed Distance (Gate Width) = 0.3m
Now Change the following parameters these are not adjusted by choosing Solids
in P102.
P43 = Breakpoint. Change to a value that will enable you to apply gain to the
real echo whilst avoiding applying gain to a false echo.
P44 = Slope. Change to a value that will enable the true echo to be
distinguishable from any other echoes.
Note: Care should be taken when employing the above two parameters, we are
attempting to increase signal size towards the bottom of the silo, (within the cone)
to make the measurement more reliable. The gain is only a software multiplier it
does not increase the raw signal strength.
If the echo is disappearing the transducer needs to be moved to a better position
or upgraded.
P47 = Outside Count. Change to 25. This is the parameter that controls the
movement of the gate. Increasing the value makes the movement of the gate to a
false echo less likely.
P67 = Echo Algorithm = 2 = Largest. The unit will measure on the largest echo
seen above the loss limit Threshold.
P870 = Fill Damping = ????. Set the value to just above the max rate of filling. If
the unit does decide to go to a closer echo it will do so at the damping rate thus
giving the unit time to recover the true echo before the unit shows a large reading
change.
P871 = Empty Damping = ????. Set the value to just above the max rate of
emptying. If the unit does decide to go to a multiple it will do so at the damping
rate thus giving the unit time to recover the true echo before the unit shows a
large reading change.
P109, P110, P111 & P107. (See DATEM Custom).
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