LFE 2000 Series - Page 70

958-31 REV.
B
connect
a 10000
1l4w
lz
resistor
across
output
termrnals
4
and 5 for
ANALOG
0UTPUT
I
and/or
another
10000
resistor
across
terrnrnals
D and
E for ANALOG
OUTPUT
2.
Then
connect
a
digltal
voltmeter
across
OUTpuT
1 or
ouTpuT
2 rear
termrnals.
Allow
a
5 mlnute
warrnup
before
procedj-ng
with
the
next
step
Connect
a
sultable
calrbration
source
to
the
input
terrrinals
and
adjust
the
input
so
that
the
drsplav
reads
about
half
sparr,
i.e.,
halfway
between
LO spAN
and
HI SPAN.
Enter
the
TLINFI
LOOP
and push
the
drsplay
reads
TUNE?
OUTpllTS.
Answe
Following
the
TUNE
LOOP
flow
chart,
R/M
(off)
and
RATE
I
to 0.00
(off).
If
OUTPUT
2
is
also
berng
adjust.ed,
z.
PARAM
DISPLAY
button
several
times
untrl
the
r
YES to
the
quest.ion.
set
the
PR
BAND
I
to
25'/"
,
RESE'I
I t
cr 0
.00
set
AUXSP
to
0
and i'eDeat
Step
5
for
OIITPLIT
7
9.
Press
RETURN
to retrrrn
to
the OPERATOR
LOOP.
Advance
the
DISPLAY
to show
the
setpornt
on
the bot
DOTJN
ARROWS,
adjust
the
setpoint
to
the
same
value
on
the
top
lirre.
press
the
pARAM/DISpt,Ay
kev
unti
I
XXXZ.
torn
1lne.
tlslng
Itre
UP
and
as
the
process
variable
shown
the
bot torn
I
rne shcrws
0tJT1
tl
If
the
MAN
indrcator
rndrcat.or
off
.
fS
bl
iuking,
press
the
START/STOP
butt.on
to turn
t he
10.
Adjust
the
caltbratlon
source
until
the
display
shows
OUTl
0:{
or 0UT2
07.,
The
digltal
voltage
indication
should
be
approximately
*1
to
+4
VDC.
(If
the zero
ad
justtnent
pot
option
has been
irrstal
led
per
Sect
jon
4.3,7,
ad.j
ust
pot
Rl0l
or
R104 as
appropriate
for 4 VDC.
Adjust
the
calibration
sout'ce
untrl the
drsplay
Adjust
poterrttometer
Rl0i for
ANALOG
0UTPUT
1
drgital
voltage
rndjcation
of
+21
10.2 VDC.
Repeat
steps
10
through
l2 for
the second
4l20
.
Check
the
perf
ormance
by varyirrg
the lnput
to charrge
the
percent
(:/
) OIJTPIJT
POWER
and
notlng
that
ANALOG
OIJT
cligltal
voltage
indication
varies
accordrngly.
.
Following
calibratjotr
remove
the cont.roller
frorn
the caltbrat.irtrr ct-rrrnectclr
arrd
reinstall
lnto
its controller
case.
(NOTE:
Make
sure that
the
electronic
assenrbly
is
rrrated wrth
the sanre
compensation
resistor
that was
usecl for'
calibration.
0therwise,
the
controller
must- be recalibrated
per
Sectiorr
6
,12,
t
O/5 VDC
ANALOG
OUTPUTI
AND ANALOG
{IT]TPTJT
2
ADJTISTMENT
shows OUTI
l00Z
0R 0tlT2
100"1.,
or
R100 for
ANALOG
OUTPLTT
2 for ;r
nA DC
Analog Otrtput
as
requrred.
1l
t4
l5
7
.2.
7
.2.
2
2.
l.
I
CONTROLLERS
WITH AUTO/MANUAL
FEATURE
Install
the
electronics
assernbly
into a CALIBRATI0N
CONNECTOR
(l,FE
P/N
345-826).
This connector
provrdes
access to the
analog circurt
potentrometers
R100 and
R10l located
orr the
top edge of
the I/0 board while the controllei
js
energized.
-63
-
LFE Instruments
Drvrsiorr