LVDT
Signal
Conditioner
LVD
3
9
Adjusting
the
gain
Figure
5.
The
gain
is
to
be
adjusted
so
that
maximum
output
signal
is
obtained
when
the
moving
machine
part
is
in
its
maximum
position.
The
measuring
range
can
be
reversed,
to
make
the
output
change
in
the
correct
direction,
by
switching
the
connections
for
the
transducer
secondary
coils
(terminals
4
and
6).
First
use
SW1
to
select
the
medium
gain
range
(SW1,
no.2
set
to
ON,
SW1,
no.1
and
no.3
set
to
OFF).
Then
set
the
moving
machine
part
in
the
required
maximum
position.
Read
the
output
signal
and
use
potentiometer
Gain
to
adjust
it.
Turn
clockwise
to
increase
the
output
signal,
turn
counter
clockwise
to
decrease
it.
If
a
sufficiently
high
output
signal
cannot
be
obtained,
the
high
gain
range
must
be
selected
by
SW1
(SW1,
no.
3
set
to
ON,
SW1,
no.
2
and
no.
1
set
to
OFF).
If
a
sufficiently
low
output
signal
cannot
be
obtained,
the
low
gain
range
must
be
selected
by
SW1
(SW1,
no.
1
set
to
ON,
SW1,
no.
2
and
no.
3
set
to
OFF).
If
the
gain
range
has
been
changed
by
SW1,
STEP
2
under
‘Adjusting
the
zero
point’
should
be
executed
again,
and
then
the
connection
Sec.
1
to
Sec.
2
must
be
removed.
Finally
potentiometer
Gain
can
be
adjusted
so
that
the
required
output
signal
is
obtained
with
the
moving
machine
part
in
maximum
position.
1
3
2
SW1
ON
OFF
SW3
-/+10
0 - 10
SW2
SEC.
PRIM.
Co
m
.
Pr
im
.
Se
c.
1
Se
c.
2
Bal
.
Gain.
V o
ut
Fu
se
Figure
5.
Location
of
switches
on
a
LVD
3
circuit
board.
Summary of Contents for LVD 3
Page 1: ...Op Ins erati tallat ng a tion i and instru LVDT uctio T Sig ons nal co onditi LV oner D 3 GB ...
Page 2: ......
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Page 14: ...Operating and Installation instructions 10 ...
Page 20: ......
Page 22: ......
Page 23: ...LVDT Sign A De nal Condition ppendix 2 eclaration o ner LVD 3 2 of Conformi ity ...
Page 24: ......
Page 25: ......
