SPECI
F
IC
ATIONS
LOGGING
INTERV
A
L
1,
5,
10,
3
0
s
e
co
nd
s,
1,
5,
1
0
, 30 mi
nut
es,
o
r 1
, 2
, 4
, 1
2
o
r 2
4
ho
urs
, p
ro
g
ramm
abl
e f
o
r
ea
ch
ch
an
nel
. R
eadi
ngs
c
an
al
so
A
N
D SPEED
be
re
du
ce
d t
o
av
erag
es
, max
ima or
minima
at
th
es
e i
nterv
als. T
ypical
ly
10
ch
an
nel
s
pe
r s
e
co
nd
in
to
tal
.
IN
PUT CH
A
N
NEL
S
60
ch
an
nel
s m
a
xi
mum, d
e
pe
nd
in
g
on i
n
pu
t ca
rd
s i
n
st
alle
d,
pl
us
2
re
sid
ent
di
git
a
l i
n
pu
ts
a
nd
2 r
e
la
y outp
u
ts
.
A
n
alogue
Inp
u
ts
STA
N
D
A
RD
AN
AL
O
G
U
E
E
a
ch
LA
C
1
mu
lti
plex
e
r ca
rd
ca
n
sel
e
ct
an
al
og
ue
in
put
s fr
om:
CA
RD
, LA
C
1
E
ither
: 15
ch
an
nel
s o
f d
iff
ere
nti
al v
ol
tag
es
an
d/
or
3-w
ire r
esi
st
an
ce
s
O
r: 3
0
c
h
an
ne
ls
o
f sin
g
le
-e
nded
(
co
mmon g
ro
u
nd
) v
o
ltag
es
an
d/
or
2-w
ire
r
e
si
st
an
ce
s
D
irec
tly
measu
re
s v
o
ltage
s u
p
to
±2
V
or r
e
si
st
an
ce
s <
1
M
Ω
. V
o
ltag
es
u
p to
±5
0V
a
nd
cu
rr
ent
s
can
b
e
me
as
ure
d
usi
n
g
pre
ci
sio
n
div
ider
or s
h
un
t re
sis
tor
s
moun
te
d d
ire
ctly
o
n
the i
n
pu
t sc
rew
te
rmin
al
s,
or
on
a
n LP
R
1
o
r LP
R
1
V
c
a
rd
.
4-W
IR
E
CA
RD
, L
F
W
1
E
a
ch LF
W
1
ca
rd can
h
a
nd
le
u
p
to
12 bri
d
ge
, po
te
nti
o
metr
ic,
di
ffere
n
tial
vo
ltag
e or 2- or
4-w
ire
re
si
st
an
ce
sen
so
rs
.
4-w
ire r
e
si
st
an
ce
meas
ur
eme
n
ts
v
irtual
ly
elimina
te
c
able
re
si
sta
n
ce
err
o
rs
. 4
-w
ire P
t1
00
plat
in
um r
e
si
st
an
ce
th
erm
o
met
e
rs
,
(e.
g
. D
IN
43
76
0/B
S
190
4 ty
pes)
a
re
meas
ur
ed
ov
er -2
00
to +
8
50
°C
. I
n
the
-1
7 t
o
+5
7°C
r
ang
e
of
Lo
gg
er
an
d
P
t100
tem
p
erat
ur
e, r
e
so
lu
tion
of
0.
01°C
a
n
d a
cc
u
ra
cy
of ±0.2°C
ar
e
ob
tain
ed
.
A
C
/DC I
NPUT C
A
RD,
E
a
ch A
C
D
1
ca
rd
prov
ide
s 1
5
me
as
urem
ent
c
h
an
ne
ls
w
h
ich may
be
in
di
vi
dually
conf
ig
ure
d
fo
r A
C
v
o
ltag
e (
true
rms
), D
C
vo
ltage
A
CD1
(dif
fer
e
nt
ia
l),
2-
o
r
3-w
ire r
e
si
st
an
ce
. D
C
and
re
si
sta
n
ce
s
p
ec
ifi
ca
tio
ns
a
re t
he
sam
e
a
s f
o
r
LA
C
1
.
VOLTA
G
E RE
A
D
INGS
Full Scale
Resol
u
tio
n
(1
2
bits + sign)
4 r
a
ng
es
, us
er-
se
lect
ed
R
ang
e 1
:
±4mV
1µV
or
aut
o
ra
ng
ed
:
R
ang
e 2
:
±32mV
8µV
R
ang
e 3
:
±26
2
mV
64µV
R
ang
e 4
:
±2.
0
97
V
0.5mV
DC A
ccur
ac
y
Logge
r t
e
mpe
ratur
e
15
to
2
5
°C
-2
0
to
+60°C
(ty
pical figure
s
F
u
ll s
ca
le
er
ror
±0.
07%
(0.
04%
) ±
0
.2%
(0
.1%)
in bra
ckets)
Lon
g t
e
rm
st
abi
lity
±0.
25%
(0.
02%
) o
ver 1 y
ear
Differ
e
ntia
l o
ffs
et
±10µV
(3µV
)
±0
.0
2% ±1
2µV
±
0
.0
2%
N
o
ise
(0.
2
µV
rms
)
Inp
ut im
pe
da
nc
e
100M
Ω
a
ppr
ox
.
C
o
mmon M
o
de
R
ang
e
±2V
o
r ±
1
.05V
if
“
+
” in
pu
t i
s c
lo
ser
to
lo
gg
er
0V
th
an
“
-” i
n
pu
t
C
o
mmon M
o
de
R
e
je
cti
on R
a
tio
(14
0dB
),
o
n
v
o
lta
ge
r
a
nge
1
AC
Ac
cu
ra
c
y
Input
le
ve
l
Sinus
oidal s
igna
ls
Sinus
oida
l s
igna
ls
Non-
s
inus
oida
l signals
(mV
ac
rms
)
45
-6
0 Hz,
-20
to
+6
0°C
65
-10
0
0 Hz
Cr
est
fa
ct
or 1.
0
to 1.
7
0 t
o
1
0
Re
ad
s
ze
ro
in
th
is
ra
ng
e
R
e
ad
s
ze
ro
in
th
is
ra
ng
e
Re
ad
s
zer
o
in
th
is
r
an
ge
10
to
50
±3mV
max
imum ad
dit
iona
l
50
to
10
0
±0.
6
% r
e
ad
in
g ±
0
.25mV
±0
.6%
re
adi
ng
er
ror
±
1
.0%
re
adi
ng
g
100
to
2
0
00
±0.
6
% r
e
ad
in
©
2006 Delta-
T
Devices Ltd
v1.1
Page 10
