Pulscon LTC
Function group "extended calibr." (05)
D
O
C
T
-0
0
9
4
A
0
6
/2
009
12
07
82
42
7.7
Function "echo quality" (056)
The echo q
u
ality is the
b
enchmark for meas
u
rement relia
b
ility. It descri
b
es the amo
u
nt
of reflected energy and depends primarily on the following conditions:
•
Dielectric constant of the medi
u
m
•
pro
b
e type
•
Distance
b
etween sensor and prod
u
ct
Low val
u
es increase the pro
b
a
b
ility that the echo is lost thro
u
gh a change in
meas
u
rement conditions, e. g. angels of repose or large meas
u
ring distance.
7.8
Function "offset" (057)
This f
u
nction corrects the meas
u
red level
b
y a constant val
u
e. The entered val
u
e is
added to the meas
u
red level.
7.9
Function "output damping" (058)
Infl
u
ences the time an o
u
tp
u
t req
u
ires to react to a s
u
dden level j
u
mp (63 % of steady
state). A high val
u
e atten
u
ates, for example, the infl
u
ences of rapid changes on the
meas
u
red varia
b
le.
User input:
0 s ... 255 s
The defa
u
lt val
u
e depends on the selected application parameter
"process cond." (004)
.
E
+
–
20 mA
100 %
4 mA
0 %
echo quality (056)
E
+
–
E
+
–