Fuse Requirements
An
A
C
in
put
fuse
is n
ecessary
whe
n p
owering
th
e
instrument.
Below
i
s
a
table
of
the
f
use
require
d
for
a
ll
m
odels
o
perating
w
it
h e
ither
1
10
VAC
o
r
2
20
V
AC
i
nput.
Table 1 - Fuse Requirements
Model Fuse Specification (110 VAC) Fuse Specification (220 VAC)
9129B T6.3A 250V
T3.15A 250V
2.2
Line Voltage Selection
Th
e
power
s
upplies
c
an
b
e s
elected
t
o
o
perat
e w
ith
110
V
i
npu
t o
r
220
V i
nput.
To
ensure
t
hat
you
r i
nstrument
is p
roperly
c
onfigured
t
o
o
perate
a
t
the
d
esired
A
C
li
ne
v
oltage,
please
f
ollow
the
s
teps
be
low:
For safety, no power should be applied to the
instrument while changing line voltage operation.
Disconnect all cables connected to the instrument
before proceeding.
Step 1 - Check and/or Change Fuse
-
Locate
the
f
use
box
n
ex
t
to
the
A
C
i
npu
t c
onnecto
r in
the
re
a
r p
anel.
-
With
a small
flat
b
lade
s
crewdriver,
i
nsert
in
to
the
f
use
b
ox
s
lit
t
o
p
u
ll a
nd
slide
o
ut
t
he
fuse
box
a
s
i
ndicated
be
low.
-
Check
and
replace
f
use
(
i
f n
ecessary)
fo
r
t
he
desire
d l
ine
v
oltage
o
peration
(
see
Table 1
).
Figure 5 - Fuse replacement
Fuse
bo
x
sl
it
Fuse
bo
x
Check/Remov
e F
use
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