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Introduction
T
h
is pr
oce
du
re
sh
o
u
l
d
b
e p
erfor
m
ed
if
t
h
e
i
n
st
rum
en
t
fails
to
m
eet
t
he
perfo
rm
ance
r
e
qu
i
r
e
m
e
n
ts
of
t
he
elec-
t
r
ical
ch
a
r
acte
r
istics
liste
d
i
n
t
h
e
Sp
ecificatio
n
sectio
n
of
t
h
is
m
a
nu
al
.
To
e
n
s
ur
e
co
n
ti
nu
e
d
i
n
st
ru
me
n
t
acc
u
racy,
it
is
r
eco
mm
e
nd
ed
t
h
at
a
dju
st
m
e
n
t
b
e
p
erfo
rm
ed
every
1000
h
o
ur
s
of
o
pe
r
atio
n o
r
eve
r
y
6
m
o
n
t
hs
if
used
i
n
f
r
e
qu
e
n
tly
.
A
dju
st
m
e
n
t
is
also
r
eco
mm
e
nd
ed
followi
ng
i
n
st
rum
e
n
t
r
e
p
ai
r
or
mo
d
ificatio
n
.
A
dju
stme
n
ts
m
u
st
b
e
ma
de
i
n
an
ambie
n
t
temperature
of
+20°C
to
+30°C
.
Se
r
vices
Available
Te
k
t r
o
n
ix,
Inc
.
pr
ovi
d
es
com
p
lete
i
n
st
rum
e
n
t
r
e
p
ai
r
and
a
dj
ustme
n
t
at
local
fiel
d
se
r
vice
ce
n
ters
a
nd
at
t
he
factory
se
r
vice
ce
n
te
r
.
Co
n
tact
yo
ur
local
Te
k
t
r
o
n
ix
fiel
d
office
o
r
representative
fo
r
f
u
rt
h
e
r
i
n
fo
rm
atio
n
.
Test
Equi
p
me
n
t
Re
q
ui
r
e
d
Test
e
qu
i
p
me
n
t
(o
r
e
q
uivale
n
t)
liste
d
i
n
Ta
b
le
4-1
is
required
fo
r
adju
stme
n
t
of
t
he
ΤΜ
5006
.
S
p
ecificatio
ns
give
n fo
r
t
he
test
eq
ui
pm
ent
a
r
e
t
h
e
mi
n
im
um
n
ecessa
ky
fo
r
acc
ur
ate
adju
stme
n
t
.
All
test
e
qu
i
p
me
n
t
is
assume
dto
be
cor
r
ectly
cali
b
rated
a
nd
o
pe
r
ati
ng
wit
h
i
n
s
p
ecificatio
n
.
If
ot
h
e
r
testequipment
issubstituted,
t
h
ecalibration
setup
may
n
ee
d
to
b
e
alte
r
e
d
to
m
eet
t
he
r
e
qu
i
r
eme
n
ts of
t
he
eq
ui
p
me
n
t
use
d
.
A
dju
stme
n
t
Access
R
e
m
ove
t
he
to
p
an
d
lift
si
de
covers
to
gai
n
access
to
t
he
+8
V
bu
ses,
gro
un
d
buses
and
t
he
a
dju
st
m
en
ts
.
F
ig
ur
e
4-4
s
h
ows
t
h
ea
dju
stme
n
t
locations
.
P
o
w
e
r
L
i
m
i
t
A
dj
ustme
n
t
T
he
Ρω
r
L
im
a
dju
st
m
e
n
t,
R
2060,
is
u
sed
fo
r
t
r
o
ub
les
h
ooti
n
g
only
.
B
efo
r
e
begi
nn
i
ng
cali
br
ation
ma
ke
certai
n
t
h
is
ad
ju
stme
n
t
is
f
u
lly
cw
.
1
.
A
dj
ust
8
V
A
dj
α
.
Co
nn
ect
t
he
dvm
to
t
h
e
+8
V
a
nd
Grid
ter
m
i
n
als
as
sh
ow
n
i
n
F
ig
.
4-2
.
T
h
e
voltage
bus
locatio
n
is
sh
ow
n
i
n
F
ig
.
4-5
.
b
.
Set
t
he
li
ne
voltage
to
n
o
m
i
n
al
fo
r
t
h
e
selecte
d
r
a
n
ge
.
c
.
C
HE
C
K
-fo
r
α
rea
d
i
n
g
of
8
.2
V
.
d
.
AD
JU
ST-
R
2151,
8
V
Ad
j
fo
r
α
d
vm
r
ea
d
i
ng
of
8
.2
V
.
REV
N
O
V
1984
I
N
T
ERNA
L
AD
JU
ST
MEN
T
PR
OC
E
D
URE
Calib
r
at
i
o
n
-
ΤΜ
5006
2
.
A
dju
st
cloc
k
Oscillato
r
(S
NΒ
021520
and
a
b
ove)
α
.
Set
t
h
e
line
voltage
to
88%
of
t
he
n
o
m
i
n
al
val
u
e
fo
r
t
he
selecte
d
r
a
n
ge
.
b
.
Co
nn
ect
α
f
r
e
qu
e
n
cy
coun
te
r
to
p
i
n
1,
U
1950
.
ε
.
AD
JU
ST-
R
1855
fo
r
α
r
ead
i
n
g
of
20
kH
z
on
t
h
e
co
un
te
r
.
d
.
Co
nn
ect
α
loa
d
as
d
esc
r
ibe
d
i
n
F
ig
.
4-3
fr
om
+8
V
to
g
r
o
und
.
e
.
Co
nn
ect
α
load
as
d
esc
r
ibe
d
i
n F
ig
.
4-3
from
+26
V
to
g
r
o
un
d
.
f
.
Co
nn
ect
α
loa
d
as
d
esc
r
ibed
i
n
F
ig
.
4-3
f r
om
-26
V
to
gro
und
.
All
5
.0n
L
oa
d
fo
r
±26
V
supp
lies
.
U
se
t
hr ee
5
.091
25
W
5%
r
esistors
i
n
se
r
ies
(Te
k
t
r
o
n
ix
P
art
Numb
e
r
308-0177-00)
.
All
0
.3
Ω
L
oa
d
fo
r
+8
V
s
upp
ly
.
U
se
8 0
.3
Ω
25
W
5%
r
esistors
as
shown
(Te
k
t
r
o
n
ix
P
art
Numb
er
308-0691-00)
.
2950-45
F
ig
.
4-3
.
Load
s
fo
r
use
i
n
i
n
ternal
a
dju
st
m
e
n
t
pr
oce
dur
e
.
g
.
AD
JU
ST-
R
1855
slowly
εω
un
til
t
h
e d
vm
r
ea
d
i
ng
ju st
begi
n
s
to
dec
r
ease
.
N
ote
t
h
e
f
r
e
qu
e
n
cy
r
ea
d
i
ng
on
t
h
e
cou
n
te
r
.
h
.
AD
JU
ST-
R
1855
εεω
fo
r
α
cou
n
te
r
r
ea
d
i
ng 0
.25
kH
z
lowe
r
t
h
a
n
t
he
r
ea
d
i
ng
n
oted
ab
ove
.
i
.
R
e
m
ove
all
conn
ectio
ns
.
T
h
is
com
p
letes
t
h
e
i
n
ternal
ad
j
ustme
n
t
p
r
oced
ur
e
.
4-5