NI 4071 7½-Digit FlexDMM Calibration Procedure
|
© National Instruments
|
149
Tab
le
23
.
N
I 4071
4-Wire
Resist
ance V
e
rification T
o
lerances
Cal
ibrator
Re
sist
an
ce
Range
2-Y
ear T
o
leran
c
e
± (pp
m
of Cal
ibrator Res
ist
anc
e
+
ppm
of Ran
g
e)
24-Hou
r T
o
leranc
e
± (NI
4071
S
p
ec
ifica
tion
+ F
luke
572
0 S
p
ecifi
catio
n)
NI
4071
S
p
ec
ific
ation
± (ppm
of Cali
brator Res
ist
anc
e +
ppm
of Ran
g
e)
Fluk
e
5
720 S
p
eci
ficati
o
n
*
± (ppm
of Outp
ut)
10
M
10
M
90 + 10
60 +5
31
1M
1M
52
+
1
5 + 1
15
10
0
k
10
0
k
50
+
8
5 + 2
9
10
k
10
k
48
+
0.
5
5 +
0.
5
7.
5
1k
1k
48
+
0.
5
5 +
0.
5
7.
5
10
0
10
0
56
+
4
8 +
2.
5
9
0
10
M
0 +
10
0 + 5
0
0
1M
0 + 1
0 + 1
0
0
10
0
k
0 + 8
0 + 2
0
0
10
k
0 + 0.
5
0 +
0.
5
0
0
1k
0 + 0.
5
0 +
0.
5
40
µ
0
10
0
0 + 4
0 +
2.
5
40
µ
*
T
he Fluke
57
20 Specification
is a 90-
day
95% confidence specifi
cation
that
is
includ
ed in the 24-
Hour
T
oleran
ce.