20 I
nstallation
and
Preparations
for
U
se
T
O
S
8040
2.5
G
rounding
Gro
und
t
he
t
es
t
e
r
by
co
nne
ct
ing
t
he p
o
we
r
cor
d
to
a
p
ro
pe
r
ly g
ro
unded
t
h
r
ee
-
p
ro
ng
ele
ctr
i
ca
l
o
u
t
le
t.
Fig.
2-2
Protective
Conductor
Terminal
• This
product
is
Safety
Class
I
e
q
uipment
(
e
q
uipment
w
ith
a
protective
con
-
ductor
terminal
)
under
IE
C
Standards.
To
prevent
electric
shoc
k,
al
w
ays
connect
the
product
’
s
protective
conductor
terminal
to
an
electrical
ground
(
safety
ground
)
.
■
G
rounding is essential.
I
f
t
he
t
es
t
e
r
is used wi
t
h
o
u
t
g
ro
unding
a
nd
o
u
t
pu
t
is in
a
dve
rt
en
t
ly sh
ort-c
i
rc
ui
t
ed
to
pe
r
iphe
ra
l equipmen
t
su
c
h
a
s
a
co
nvey
or
co
nne
ct
ed
to
g
ro
und
or
a
ne
ar
by
A
C p
o
we
r
line*
,
t
he
t
es
t
e
r
’s en
c
l
o
su
r
e m
a
y be
c
h
ar
ged
to
h
a
z
ar
d
o
us v
o
l
ta
ges
.
Ho
weve
r,
when
t
he
t
es
t
e
r
is p
ro
pe
r
ly g
ro
unded
,
i
t
will n
ot
m
a
lfun
ct
i
o
n
,
a
nd i
t
s
en
c
l
o
su
r
e will n
ot
be
c
h
ar
ged
to
high v
o
l
ta
ges even if
t
he
o
u
t
pu
t
is sh
ort-c
i
rc
ui
t
ed
to
t
he g
ro
und vi
a
a
pe
r
iphe
ra
l
,
a
s n
ot
ed
a
b
o
ve
,
or
if
t
he
t
es
t
e
r
’s
LO
W
t
e
r
min
a
l
a
nd
HIGH
V
OL
T
AG
E
t
e
r
min
a
l
ar
e sh
ort-c
i
rc
ui
t
ed
.
F
or
t
hese
r
e
a
s
o
ns
,
g
ro
unding
t
he
t
es
t
e
r
is essen
t
i
a
l
to
ensu
r
e s
a
fe
t
y
.
*
A
n
A
C p
o
we
r
line is gene
ra
lly
a
p
o
we
r
line
co
nne
ct
ed
to
a
n ele
ctr
i
ca
l
o
u
t
le
t
to
whi
c
h
t
he
t
es
t
e
r
’s p
o
we
r
cor
d is
co
nne
ct
ed
.
H
e
r
e
,
i
t
a
ls
o
r
efe
r
s
to
a
n
A
C line
co
n
-
ne
ct
ed
to
a
p
r
iv
at
ely
-o
wned ele
ctr
i
ca
l p
o
we
r
gene
rat
i
o
n devi
c
e
.
AC
I
NP
U
T
Prot
e
ct
ive
co
ndu
ctor t
e
r
min
a
l
Gro
unding
is
es
ta
blished
when
t
he
p
o
we
r cor
d
is
co
nne
ct
ed
to a t
h
r
ee
-
p
ro
ng
ele
ctr
i
ca
l
o
u
t
le
t.
W
ARNING
D
escription