Tektronix 7704A User Manual

. REV . C, NO V . 1976
PREL I M I N A R Y I NF O RM ATIO N
Operating
V
oltage
T
h e 7704
Α
can be operated
from eit h er
α
115-volt
or α
230-volt nomi n al line voltage
source . T he L ine Selector
assem b ly on t h e rea r pa
n el
co
n verts t h is instrument from
one operating voltage to t h e ot
h
er .
T h
is assembly also
incl ud es line f u ses . U se t
he following proce d ure to
o
b tain
correct
instrume n
t
operation from t he li ne voltage
availa
b le .
T h is i n strument is desig ned for o p eratio n from α
power sour ce wit h its n
e
u t
r
al at o r n ear ea
r
t
h
(g ro und ) p ote
n
tial
wit h α
se
p a r ate safety-ea r t h
con
d
ucto
r . It
is
not intended for ope r ation fr om two
ph ases of α
multiphase
system, or
across
t h e legs of α
single-phase, t hr
ee-wi re system .
1 .
Discon nect
t
h e instrument from t he p owe r source .
2 . L oosen t
h
e two
captive screws w h ic h h ol d t he cover
onto t
h
e selector
assem b ly ; t hen
pull
to remove t h e cover .
3 .
To
convert f r om 115-volt to 230-volt nomi n al li ne
voltage, or vice versa, pull
out the Selector switc h bar (see
F
ig . 1-1) an d p lug it b ac k
i n to t he remaining h ole . C hange
t h e line-cord power p
lug
to
matc h t h e p ower-source
rece p tacle, or use α 115- to
230-volt adap ter .
PowerCo
r
d Co
n d ucto r Identification
4 . Install t he cover and tig
h ten
t
h e captive screws .
O
PER ATI N G
I
NF O
RM ATIO N
Section
1-7704 Α Service
Fig . 1-1 . L i n e Selector asse mb ly on rea r p a n el (s h ow n wit h cover
a
nd f u ses
removed) .
5 . B efore a p plyi ng power to t
h
e instr
u me n t, ch ec k t h at
t h e in d icator ta b on t he switc h bar is pr otr
u
di
n g t hr ou g h
t h e
co
r rect h ole for t h e d esire d line voltage
range .
T he 7704 Α is d
esigned
to
b e used wit h α t h ree-wire AC
p ower system
. If t h e th ree- to two-wire a d apter is use d to
co
nn
ect t
h
is
instrument to α two-wire AC p owe r system, b e
sure
to
con n ect the gro un d lea d of t h e ad a p ter to eart
h
(groun d ) . F ail u re to complete t he ground system may
allow
t h e ch assis of th is instrument to b
e elevate d
a
bove ground
pote n tial an d p ose α s
h
oc k
h
azard .
CO N T R O
LS AND CO NNE CTO RS
T he
ma
j or controls and connectors are locate d on t
h e
front panel
of
t h e i n str u me n t . Several a u xiliary functions
are p rovi d ed on t he rear pa n el .
F
igure 1-2 s
h
ows t
h e fro n t
an
d rear pa n els and p rovides brief d escriptio
n s of each
control an d conn ector .
F
or more d etailed o p
erating infor-
mation , refer to the 7704 Α Operators Manual .
Con
du cto r Colo r
Alte rnate Colo r
U ng r o und ed ( L ine) Br
own B lac k
Grounded ( N eut r al) B lue
Wh ite
Grou nd i ng ( E art
h i n g) G r ee n-Yellow G r een-Yellow

Tektronix 7704A Specifications

General

Brand	Tektronix
Model	7704A
Category	Test Equipment
Language	English