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sbd31jen21p05
P28 - - - a Echo loss handling
a
E
CHO LOSS ERROR
INDICATION
R
EMARKS
0
Delayed
During short periods of echo loss, both the display and the analog output hold the last value. The
display keeps displaying the last value until the time interval is set in the
P20
parameter, then another
P20
time elapses with blinking the last value before the "No Echo" error message is indicated. The
current output holds the last value for twice as long as set in
P20
before going to the "Error Indication
Mode" set in
P12
.
1
None
During an echo loss the displayed value on the display and the analog output value will hold the last
value.
2
Advance to full
When echo loss occurs during filling, the displayed value on the display and the analog output value
shifts towards the
"
full
"
tank/silo state with the level elevation rate (filling speed) set in
P26.
3
Immediate
In the case of an echo loss, ‘no Echo’ will appear on the display and the outputs will change according
to the
"
Error Indication Mode
"
set in
P12
.
4
No echo loss indication
in case
of empty tank/silo
Echo loss may occur in empty tanks with a spherical bottom due to deflection of the ultrasonic beam,
or in case of silos with an open outlet. If the echo is lost when the tank/silo is completely empty, the
indication will correspond to an empty tank, in all other cases, echo loss indication will function
according to “Delayed”.
FACTORY DEFAULT:
P28
= 0
Summary of Contents for EchoTREK S-300
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