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Insta llation
Mo del 435 Β
2-6.
P
ower
R
equirements
The
P
ower
M
ete r requires α
p
ower source with an
output of 100, 120, 220, or 240
V
ac +5%ο, -10%ο sin-
gle phase, 100 and 120
v
olts, 48 to 66 Hz and 360
to 440 Hz, 220 and 240
v
olts, 48 to 66 Hz.
P
o we r
consumption is 20
V
-Α
m
aximum .
2-2
WA
RN
I
N
G
If t his instrument is to be en e rg ized via
an external autot ran sfo rm er,
m
ake s ure
the autotransformer co mmon te rmin al
is connected to the ea r th termin al of t he
powe r source.
2-7.
L
i
n
e
V
oltage Selection
BEF O RE
S
W I TC HING ON THI S IN-
STRUMENT,
m
ake s ure th e instrum ent
i
s set to the voltage of th e power source.
Fuses
m
ay be ordered und er HP
p
art numbers
2110-0234, 0.1Α (250V slo w blow)
f
or 100/120
V
ac
operation and 2110-0040 0 .062Α (250V sl ow blow)
f
or 220/240
V
ac operation .
2-8.
P
ower Cable
CA
U
TIO
N
Figur e 2-2 pr ovid es in struct i o n s
f
or lin e
v
ol tage
a nd fu se sel ect ion. Th e lin e
v
o l tage se l ect ion ca rd
and proper fuse ar e
f
actory insta ll e d for 120
V
ac
operation.
O
p
erating voltage is s
h
own
in mo
du
le win
d
ow.
S
ELE
CTIO
N
O
F
O
PER
ATI
N
G
V
O
L
TAG
E
1 . Open cover door, pull t
h
e
FU
S
E PULL
lever an
d
rotate to
left .
R
emove t
h
e f
u
se .
2 .
R
emove t
h
e
L
ine
V
oltage Selection Card .
P
ositio
n
t
h
e car d
so t
h
e line voltage appears at top-left cover.
P
us
h
t
h
e car
d
firmly into t
h
e slot .
3 .
R
otate t
h
e
Fu
se Pull lever to its normal
p
osition . Insert α
fuse of t
h
e correct value i
n
t
h
e
h
ol
d
er . Close t
h
e cover
d
oor.
To avo id
t
h e poss ibility of
h
azardo us electri-
cal s h ock,
d
o
n
ot oper ate t his i nstrum ent at
line vol tages gr eate r than 126.5 Vac wit h line
freq uencies greate r th an 66 Hz ( leak age c ur-
r ents at t hese line settings m a y
e
xceed
3.5 mA).
F
igu
r
e 2-2. L i
n
e
V
oltage Selection
2-9 .
Interconnections
In accordance with intern ational safety stan-
The
P
ow er M eter and α
p
ower sensor ar e integral
dards, this instrum ent is equipped with α
t
hree-
p
a rts o f
t
his
m
easureme nt sy stem .
B
e for e
m
ea-
wir e
p
ower cable. When conn ected to an appr opri-
surem ents can
b
e
p
e rform ed, t he
P
ower M eter and
ate ac
p
ower receptacle, this cable gr ounds the
sensor must
b
e co nn ected together wit h
t
he
p
o w er
instrum ent cabinet. The type of power cable plug
sensor ca ble . (The cable is s upplied wit h
t
he
P
ower
shipped with each instrum e nt
d
epends on the
Meter .)
country
o
f destination.
R
efer to Figure 2-3
f
o r
t
he
p
art numb e r s of
t
he
p
ower cable plugs availabl e.
Th
e
p
owe r senso r cable co upl es the
d
o supply and
WA
RN
I
N
G
sa mplin g gate driv e fr o m
t
h e
P
ow er Meter to t he
p
ower se n so r and
t
h e 220 Hz ac ou tput s ig nal fr o m
BEF O RE SWITCHING ON
T
HI S IN-
t
he
p
ow e r se n so r to t h e
P
owe r M eter .
STRUME NT, the protective ea rth te r-
minals of this instrum e n t must be con-
CA
U
TIO
N
n
ected to the protect ive co nductor of th e
(Mains) power cord. Th e
M
ains plug
T he
m
aximum v oltage w hich m a y be
shall only be inserted in α socket outlet
safe ly co up l e d to t he
P
owe r Mete r inp u t
provided
w
ith α protecti ve ear th con-
f rom
t
h e
p
owe r sensor is 18
m
V rms.
tact. The protecti ve action mu st
n
ot be
n
egated by
t
he
u
se of an exte ns ion cord
2-10" Operating
E
nvironment
(power cab le) without α
p
rotective con-
The o per atin g e nvironm ent s hould b e within
t
he
ducto r (grounding) .
f
ollowin g limitations :
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