LFE 2000 Series - Page 34

958-31 REV. B
SECTION
]
-
INPUT
MODiFICATION
LE-IQRE
J-lAB:!lxq-4II--l|-q!L
-|lqD-IJll4l]ry!,
f rrst
se lect the
proper
MODIFICATI0N
C0NTRIJLLER
accordrng
to
the output type
requlred
for the
appli.cation
as detarled tn
Sectron
4.
Becattse
the
hardware
for
all
Series
2000
corrtrol lers is
stmrlar. thesr:
lnput
rnodif
i.cations
apply
to
all
controllers
in the
series except Moriel
201I whtch
rs
a
factory
special.
After
lnput rnodification,
all units must
be configured anrl
calibrated
per
sectron
6
and
adjusted
and
tested
per
section 7.
l.l
M[)DII.'ICATION
OI'
THERMOCOUPLE
INPT]T
'TYPE
All
MODIFICATI0N
CONTROLLERS
are supplied
calibrated
for
type J
(Iron/Corrstantari)
thermocouple.
The
change
to
another
thermocouple
type
is
a conffBrlratiorr
or software
change
(see
Sectron
6).
No
component
or
board changes
are
required.
The
controller
does
not
need
to
be
recalibrated
when
changing
thermocouple
type.
t,
uq4ql4uqli
FRO_M
THERM0COUPLE
rNpur
TO l00o
pr,ArrNUM
RTD
rNprrr r./lf!_
1_pEtgll
RESOLUTI
ON
Renrove
t
Sectron
I
z.
l.
q
'7
q
10.
he
Inprtt/Out.put
(I
lO)
board
f
rom the
electronic
assernbly
per
irrsLruct
lols trr
l.
l0
and
make
the
following
changes.
(t,FE
p/N's
rn
brackets.
)
REMOVE
R],
RI5
REPLACE
resistor
R16 wrth
;,r
,lumper
(
1835-106
) .
REPLACE
resistor
R5 wit_h
2K-1,2
(1849-23).
REPLACE
resistor
R7 with
12.7K-17.
(1849-1272).
REPLACE
resistor
Rl8 with
11K-12
(1849-17i)
for
Models
2014
and 2015
onlv.
REPLACE
resistor
Rl
on the
snrall
adcler
board wrth
10.5K-17; for
Moclels 20
l4
and
2015
orrly.
OPtlN
.126
foil
bridge
(on
cc_rrnJronent
srde).
SHORT.l
27
solder
bridge
(on
componerrt
slde).
REPLAIjE
choke
Ll
tn
trrput
circuit
on
-l650-417A
(417A
rs
sr:l-eenecl orr
coilponent
side
rrncler
VR3
)
with
jumper (
l8 l5-106),
Thrs
does
not appl
y
to
bo;rrds
1650-415
(arry
revrsron)
or
1650-4378
or later
revisiorr e:rr_-r,pt
lo
sorre
1650-415E
boards
(415E
rrr
foil
on
solrler
srde
under VRI
) whrch
have
been
reworked
to add
L3.
RF,MOVE
the
Cold
Junction
Conrpensator
Resistor
asserntrly
from the
re;rr
ternrrnals
of t.he
controller
case
(ternrinals
F &
G) for
older
controllers
or
remove
the
cotrrpeusat
ing
l'esistor
(C.ICl
)
and
iLs support
f rorn the
I
,"(j troar.rl
of newer
control
lers.
-27 -
LFE
Inst rumeltt,s
Dirris
iorr