1710
‐
PT060PNE
Rev.
0
Page
43
of
57
5.5.6
Analogue output adjustment
The
adjustment
functions
of
the
analogue
output
are
the
same
for
output
under
voltage
and
under
current.
The
adjustment
of
the
analogue
output
foresees
3
steps:
1.
Setting
of
the
analogue
scale
(FULL
SCALE
D/A)
2.
Zero
alignment
(ZERO
ADJUSTMENT
D/A)
3.
Full
scale
alignment
(SPAN
ADJUSTMENT
D/A)
The
first
step
defines
to
which
weight
value,
the
maximum
value
of
the
analogue
output
must
correspond.
For
example,
the
weighing
full
scale
could
be
5000,
but
the
maximum
value
of
the
analogue
output
could
be
set
to
3000.
This
way,
for
weight
values
from
0
to
3000,
the
analogue
output
will
range
from
0
to
10
V
(or
from
4
to
20
mA);
for
higher
values,
the
output
will
remain
set
to
the
maximum
value.
Similarly,
for
negative
weight
values,
the
analogue
output
will
remain
set
to
the
minimum
value.
The
second
phase
consists
in
aligning
the
analogue
output
so
that
zero
(minimum
possible
value)
is
exactly
at
0
V
or
at
4
mA.
The
third
phase
consists
in
aligning
the
analogue
output
so
that
the
span
(maximum
possible
value)
is
exactly
at
10
V
or
at
20
mA.
The ajustment procedure must be viewed on the receiving system of the transmitted
analogue signal. Otherwise, the signal drops due to cables are not taken in
consideration.
