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DC
Pow
er S
uppl
y
GPD
-330
3 Se
ries
USE
R M
AN
UA
L G
W IN
STEK
PA
RT
NO
.
IS
O-9
001
CER
TIFI
ED M
AN
UFA
CTU
RER
This
man
ual c
onta
ins
prop
riet
ary
info
rmat
ion,
whi
ch is
pro
tect
ed b
y co
pyri
ghts
. All
righ
ts a
re r
eser
ved.
No
part
of t
his
man
ual m
ay b
e ph
otoc
opie
d, r
epro
duce
d or
tra
nsla
ted
to a
noth
er la
ngua
ge w
itho
ut
prio
r w
ritt
en c
onse
nt o
f Goo
d W
ill c
ompa
ny.
The
info
rmat
ion
in t
his
man
ual w
as c
orre
ct a
t th
e tim
e of
pri
ntin
g.
How
ever
, Goo
d W
ill c
onti
nues
to
impr
ove
prod
ucts
and
res
erve
s th
e ri
ghts
to
chan
ge s
peci
ficat
ion,
equ
ipm
ent,
and
mai
nten
ance
pr
oced
ures
at
any
time
wit
hout
not
ice.
Goo
d W
ill In
stru
men
t Co.
, Ltd
. N
o. 7
-1, J
hong
sing
Rd.
, Tuc
heng
City
, Tai
pei C
ount
y 23
6, T
aiw
an.
TAB
LE O
F C
ON
TEN
TS
3
Tabl
e of
Con
tent
s S
AF
ET
Y I
NS
TR
UC
TIO
NS
....
....
....
....
....
....
....
....
....
....
....
....
..5
OV
ER
VIE
W..
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
.9
Intr
od
uct
ion
....
....
....
....
....
....
....
....
....
....
...9
S
erie
s Li
neu
p /
Mai
n F
eatu
res
....
....
....
.11
Pri
nci
ple
of
Op
erat
ion
....
....
....
....
....
....
..12
Fr
on
t P
anel
Ove
rvie
w..
....
....
....
....
....
....
.14
Rea
r P
anel
Ove
rvie
w..
....
....
....
....
....
....
..17
C
V/C
C C
ross
ove
r C
har
acte
rist
ics
....
....
.18
SE
TU
P..
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
.19
P
ow
er U
p..
....
....
....
....
....
....
....
....
....
....
...1
9 Lo
ad C
able
Co
nn
ecti
on
....
....
....
....
....
....
20
Ou
tpu
t O
n/O
ff..
....
....
....
....
....
....
....
....
...2
1 B
eep
On
/Off
....
....
....
....
....
....
....
....
....
....
21
Fro
nt
Pan
el L
ock
....
....
....
....
....
....
....
....
..22
OP
ER
AT
ION
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
..23
C
H1/
CH
2 In
dep
end
ent
Mo
de
....
....
....
..23
C
H3
Ind
epen
den
t M
od
e..
....
....
....
....
....
.25
CH
1/C
H2
Trac
kin
g S
erie
s M
od
e...
....
....
27
CH
1/C
H2
Trac
kin
g P
aral
lel
Mo
de
....
....
19H32
SA
VE
/RE
CA
LL S
ET
UP
....
....
....
....
....
....
....
....
....
....
....
....
....
.20H34
S
ave
Set
up
....
....
....
....
....
....
....
....
....
....
...21H3
4 R
ecal
l S
etu
p..
....
....
....
....
....
....
....
....
....
...22H3
5
RE
MO
TE
CO
NT
RO
L..
....
....
....
....
....
....
....
....
....
....
....
....
....
.23H36
R
emo
te C
on
tro
l S
etu
p..
....
....
....
....
....
....
24H36
Rem
ote
Co
nn
ecti
on
Ste
p..
....
....
....
....
....
25H37
Co
mm
and
Syn
tax
....
....
....
....
....
....
....
....
.26H38
GPD
-330
3 Se
ries
Use
r M
anua
l
4
Err
or
Mes
sage
s..
....
....
....
....
....
....
....
....
..27H38
C
om
man
d L
ist.
....
....
....
....
....
....
....
....
....
.28H39
Co
mm
and
Det
ails
....
....
....
....
....
....
....
....
29H40
FAQ
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
30H45
AP
PE
ND
IX..
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
31H46
Fuse
Rep
lace
men
t...
....
....
....
....
....
....
....
.32H46
Sp
ecif
icat
ion
s..
....
....
....
....
....
....
....
....
....
33H47
Dec
lara
tio
n o
f C
on
form
ity
....
....
....
....
....
34H49
IND
EX
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
35H50
SAFE
TY IN
STR
UC
TIO
NS 5
SAFE
TY IN
STR
UC
TIO
NS
This
cha
pter
con
tain
s im
port
ant s
afet
y in
stru
ctio
ns
that
you
mus
t fol
low
whe
n op
erat
ing
the
GPD
-33
03 s
erie
s an
d w
hen
keep
ing
it in
sto
rage
. Rea
d th
e fo
llow
ing
befo
re a
ny o
pera
tion
to in
sure
you
r sa
fety
and
to k
eep
the
best
con
ditio
n fo
r the
GPD
-33
03 s
erie
s.
Safe
ty S
ymbo
ls
Thes
e sa
fety
sym
bols
may
app
ear i
n th
is m
anua
l or o
n th
e G
PD-3
303
seri
es.
WA
RN
ING
W
arni
ng: I
dent
ifies
con
ditio
ns o
r pra
ctic
es th
at
coul
d re
sult
in in
jury
or l
oss
of li
fe.
CA
UTI
ON
C
autio
n: Id
entif
ies
cond
ition
s or
pra
ctic
es th
at
coul
d re
sult
in d
amag
e to
the
GPD
-330
3 se
ries
or
to o
ther
pro
pert
ies.
D
AN
GER
Hig
h V
olta
ge
A
ttent
ion
Refe
r to
the
Man
ual
Pr
otec
tive
Con
duct
or T
erm
inal
Ea
rth
(gro
und)
Ter
min
al
GPD
-330
3 Se
ries
Use
r M
anua
l
6 Safe
ty G
uide
lines
Gen
eral
G
uide
lines
CA
UTI
ON
• D
o no
t pla
ce a
ny h
eavy
obj
ect o
n th
e G
PD-3
303
seri
es.
• A
void
sev
ere
impa
cts
or ro
ugh
hand
ling
that
le
ads
to d
amag
ing
the
GPD
-330
3 se
ries
.
• D
o no
t dis
char
ge s
tatic
ele
ctri
city
to th
e G
PD-
3303
ser
ies.
• D
o no
t blo
ck o
r obs
truc
t the
coo
ling
fan
vent
op
enin
g.
• D
o no
t per
form
mea
sure
men
t at c
ircu
its d
irec
tly
conn
ecte
d to
Mai
ns (s
ee n
ote
belo
w).
• D
o no
t dis
asse
mbl
e th
e G
PD-3
303
seri
es u
nles
s yo
u ar
e qu
alifi
ed a
s se
rvic
e pe
rson
nel.
(M
easu
rem
ent c
ateg
orie
s) E
N 6
1010
-1:2
001
spec
ifies
the
mea
sure
men
t cat
egor
ies
and
thei
r re
quir
emen
ts a
s fo
llow
s. T
he
GPD
-330
3 se
ries
falls
und
er c
ateg
ory
I.
• M
easu
rem
ent c
ateg
ory
IV is
for
mea
sure
men
t pe
rfor
med
at
the
sour
ce o
f low
-vol
tage
inst
alla
tion.
• M
easu
rem
ent c
ateg
ory
III i
s fo
r m
easu
rem
ent
perf
orm
ed in
the
bu
ildin
g in
stal
latio
n.
• M
easu
rem
ent c
ateg
ory
II is
for
mea
sure
men
t pe
rfor
med
on
the
circ
uits
dir
ectl
y co
nnec
ted
to th
e lo
w v
olta
ge in
stal
latio
n.
• M
easu
rem
ent c
ateg
ory
I is
for
mea
sure
men
ts p
erfo
rmed
on
circ
uits
not
dir
ectl
y co
nnec
ted
to M
ains
.
Pow
er S
uppl
y
WA
RN
ING
• A
C In
put v
olta
ge: 1
00V
/120
V/2
20V
/230
V
±10%
, 50/
60H
z
• C
onne
ct th
e pr
otec
tive
grou
ndin
g co
nduc
tor o
f th
e A
C p
ower
cor
d to
an
eart
h gr
ound
, to
avoi
d el
ectr
ical
sho
ck.
Fuse
WA
RN
ING
• Fu
se ty
pe: 1
00V
/120
V: T
6.3A
/250
V,
220V
/230
V: T
3.15
A/2
50V
• M
ake
sure
the
corr
ect t
ype
of fu
se is
inst
alle
d be
fore
pow
er u
p.
SAFE
TY IN
STR
UC
TIO
NS 7
•
To e
nsur
e fir
e pr
otec
tion,
repl
ace
the
fuse
onl
y w
ith th
e sp
ecifi
ed ty
pe a
nd ra
ting.
• D
isco
nnec
t the
pow
er c
ord
befo
re fu
se
repl
acem
ent.
• M
ake
sure
the
caus
e of
fuse
blo
wou
t is
fixed
be
fore
fuse
repl
acem
ent.
Cle
anin
g th
e G
PD-3
303
seri
es
• D
isco
nnec
t the
pow
er c
ord
befo
re c
lean
ing.
• U
se a
sof
t clo
th d
ampe
ned
in a
sol
utio
n of
mild
de
terg
ent a
nd w
ater
. Do
not s
pray
any
liqu
id.
• D
o no
t use
che
mic
als
or c
lean
ers
cont
aini
ng
hars
h pr
oduc
ts s
uch
as b
enze
ne, t
olue
ne, x
ylen
e,
and
acet
one.
Ope
ratio
n En
viro
nmen
t •
Loca
tion:
Indo
or, n
o di
rect
sun
light
, dus
t fre
e,
alm
ost n
on-c
ondu
ctiv
e po
llutio
n (n
ote
belo
w)
• Re
lativ
e H
umid
ity: <
80%
• A
ltitu
de: <
200
0m
• Te
mpe
ratu
re: 0
°C to
40°
C
(P
ollu
tion
Deg
ree)
EN
610
10-1
:200
1 sp
ecifi
es t
he p
ollu
tion
degr
ees
and
thei
r re
quir
emen
ts a
s fo
llow
s. T
he G
PD-3
303
seri
es fa
lls u
nder
de
gree
2.
Pollu
tion
refe
rs to
“ad
ditio
n of
fore
ign
mat
ter,
solid
, liq
uid,
or
gase
ous
(ion
ized
gas
es),
tha
t may
pro
duce
a r
educ
tion
of d
iele
ctri
c st
reng
th o
r su
rfac
e re
sist
ivit
y”.
• Po
llutio
n de
gree
1: N
o po
llutio
n or
onl
y dr
y, n
on-c
ondu
ctiv
e po
llutio
n oc
curs
. The
pol
lutio
n ha
s no
influ
ence
.
• Po
llutio
n de
gree
2: N
orm
ally
onl
y no
n-co
nduc
tive
pol
lutio
n oc
curs
. Occ
asio
nally
, how
ever
, a te
mpo
rary
con
duct
ivit
y ca
used
by
con
dens
atio
n m
ust
be e
xpec
ted.
• Po
llutio
n de
gree
3: C
ondu
ctiv
e po
llutio
n oc
curs
, or
dry,
non
-co
nduc
tive
pollu
tion
occu
rs w
hich
bec
omes
con
duct
ive
due
to
cond
ensa
tion
whi
ch is
exp
ecte
d. In
suc
h co
nditi
ons,
equ
ipm
ent
is n
orm
ally
pro
tect
ed a
gain
st e
xpos
ure
to d
irec
t sun
light
, pr
ecip
itatio
n, a
nd fu
ll w
ind
pres
sure
, but
nei
ther
tem
pera
ture
no
r hu
mid
ity
is c
ontr
olle
d.
GPD
-330
3 Se
ries
Use
r M
anua
l
8 Stor
age
envi
ronm
ent
• Lo
catio
n: In
door
• Re
lativ
e H
umid
ity: <
70%
• Te
mpe
ratu
re: −
10°C
to 7
0°C
Pow
er c
ord
for
the
Uni
ted
Kin
gdom
Whe
n us
ing
the
GPD
-330
3 se
ries
in th
e U
nite
d K
ingd
om, m
ake
sure
th
e po
wer
cor
d m
eets
the
follo
win
g sa
fety
inst
ruct
ions
.
NO
TE: T
his l
ead/
appl
ianc
e m
ust o
nly
be w
ired
by
com
pete
nt p
erso
ns
WA
RNIN
G: T
HIS
APP
LIA
NC
E M
UST
BE
EART
HED
IMPO
RTA
NT:
The
wir
es in
this
lead
are
col
oure
d in
acc
orda
nce
with
the
follo
win
g co
de:
Gre
en/
Yello
w:
Eart
h
Blue
: N
eutr
al
Brow
n:
Live
(Pha
se)
As
the
colo
urs o
f the
wir
es in
mai
n le
ads m
ay n
ot c
orre
spon
d w
ith th
e co
lour
s m
arki
ng id
entif
ied
in y
our p
lug/
appl
ianc
e, p
roce
ed a
s fol
low
s:
The
wir
e w
hich
is c
olou
red
Gre
en &
Yel
low
mus
t be
conn
ecte
d to
the
Eart
h te
rmin
al m
arke
d w
ith th
e le
tter E
or b
y th
e ea
rth
sym
bol
or c
olou
red
Gre
en o
r G
reen
& Y
ello
w.
The
wir
e w
hich
is c
olou
red
Blue
mus
t be
conn
ecte
d to
the
term
inal
whi
ch is
m
arke
d w
ith th
e le
tter N
or c
olou
red
Blue
or B
lack
.
The
wir
e w
hich
is c
olou
red
Brow
n m
ust b
e co
nnec
ted
to th
e te
rmin
al m
arke
d w
ith th
e le
tter L
or P
or c
olou
red
Brow
n or
Red
.
If in
dou
bt, c
onsu
lt th
e in
stru
ctio
ns p
rovi
ded
with
the
equi
pmen
t or c
onta
ct th
e su
pplie
r.
This
cab
le/a
pplia
nce
shou
ld b
e pr
otec
ted
by a
sui
tabl
y ra
ted
and
appr
oved
HBC
m
ains
fuse
: ref
er to
the
ratin
g in
form
atio
n on
the
equi
pmen
t and
/or u
ser
inst
ruct
ions
for d
etai
ls. A
s a g
uide
, cab
le o
f 0.7
5mm
2 sho
uld
be p
rote
cted
by
a 3A
or
5A
fuse
. Lar
ger c
ondu
ctor
s wou
ld n
orm
ally
requ
ire
13A
type
s, d
epen
ding
on
the
conn
ectio
n m
etho
d us
ed.
Any
mou
lded
mai
ns c
onne
ctor
that
requ
ires
rem
oval
/re
plac
emen
t mus
t be
dest
roye
d by
rem
oval
of a
ny fu
se &
fuse
car
rier
and
dis
pose
d of
imm
edia
tely
, as
a pl
ug w
ith b
ared
wir
es is
haz
ardo
us if
a e
ngag
ed in
live
soc
ket.
Any
re-w
irin
g m
ust b
e ca
rrie
d ou
t in
acco
rdan
ce w
ith th
e in
form
atio
n de
taile
d on
this
labe
l.
OV
ERV
IEW
9
OV
ERV
IEW
Th
is c
hapt
er d
escr
ibes
the
GPD
-330
3 se
ries
in a
nu
tshe
ll, in
clud
ing
its m
ain
feat
ures
and
fron
t /
rear
pan
el in
trod
uctio
n. A
fter
goi
ng th
roug
h th
e ov
ervi
ew, f
ollo
w th
e Se
tup
chap
ter (
page
19) t
o pr
oper
ly p
ower
up
and
set o
pera
tion
envi
ronm
ent.
Intr
oduc
tion
Ove
rvie
w
GPD
-330
3, th
e re
gula
ted
DC
pow
er s
uppl
y se
ries
, ar
e lig
ht w
eigh
t, ad
just
able
, mul
tifun
ctio
nal w
ork
stat
ions
. The
y ha
ve th
ree
inde
pend
ent o
utpu
ts:
two
with
adj
usta
ble
volta
ge le
vel a
nd o
ne w
ith
fixed
leve
l sel
ecta
ble
from
2.5
V, 3
.3V
and
5V
. The
G
PD-3
303
seri
es c
an b
e us
ed fo
r log
ic c
ircu
its
whe
re v
ario
us o
utpu
t vol
tage
or c
urre
nt a
re
need
ed, a
nd fo
r tra
ckin
g m
ode
defin
ition
sys
tem
s w
here
plu
s an
d m
inus
vol
tage
s w
ith in
sign
ifica
nt
erro
r are
requ
ired
.
Inde
pend
ent
/ Tr
acki
ng S
erie
s /
Trac
king
Par
alle
l
The
thre
e ou
tput
mod
es o
f GPD
-330
3 se
ries
, in
depe
nden
t, tr
acki
ng s
erie
s, an
d tr
acki
ng p
aral
lel,
can
be s
elec
ted
thro
ugh
pres
sing
the
TRA
CK
ING
ke
y on
the
fron
t pan
el. I
n th
e in
depe
nden
t mod
e,
the
outp
ut v
olta
ge a
nd c
urre
nt o
f eac
h ch
anne
l are
co
ntro
lled
sepa
rate
ly. T
he is
olat
ion
degr
ee, f
rom
ou
tput
term
inal
to c
hass
is o
r fro
m o
utpu
t ter
min
al
to o
utpu
t ter
min
al, i
s 30
0V. I
n th
e tr
acki
ng m
odes
, bo
th th
e C
H1
and
CH
2 ou
tput
s ar
e au
tom
atic
ally
co
nnec
ted
in s
erie
s or
par
alle
l; no
nee
d to
con
nect
ou
tput
lead
s. In
the
seri
es m
ode,
the
outp
ut
volta
ge is
dou
bled
; in
the
para
llel m
ode,
the
outp
ut c
urre
nt is
dou
bled
.
GPD
-330
3 Se
ries
Use
r M
anua
l
10
Con
stan
t Vo
ltage
/ C
onst
ant
Cur
rent
Ex
cept
for C
H3,
eac
h ou
tput
cha
nnel
is c
ompl
etel
y tr
ansi
stor
ized
and
wel
l-reg
ulat
ed, a
nd w
orks
in
cons
tant
vol
tage
(CV
) or c
onst
ant c
urre
nt (C
C)
mod
e. E
ven
at th
e m
axim
um o
utpu
t cur
rent
, a
fully
rate
d, c
ontin
uous
ly a
djus
tabl
e ou
tput
vol
tage
is
pro
vide
d. F
or a
big
load
, the
pow
er s
uppl
y ca
n be
use
d as
a C
V s
ourc
e; w
hile
for a
sm
all l
oad,
a
CC
sou
rce.
Whe
n in
the
CV
mod
e (in
depe
nden
t or
trac
king
mod
e), o
utpu
t cur
rent
(ove
rloa
d or
sho
rt
circ
uit)
can
be c
ontr
olle
d vi
a th
e fr
ont p
anel
. Whe
n in
the
CC
mod
e (in
depe
nden
t mod
e on
ly),
the
max
imum
(cei
ling)
out
put v
olta
ge c
an b
e co
ntro
lled
via
the
fron
t pan
el. T
he p
ower
sup
ply
will
aut
omat
ical
ly c
ross
ove
r fro
m C
V to
CC
op
erat
ion
whe
n th
e ou
tput
cur
rent
reac
hes
the
targ
et v
alue
. The
pow
er s
uppl
y w
ill a
utom
atic
ally
cr
oss
over
from
CC
to C
V w
hen
the
outp
ut v
olta
ge
reac
hes
the
targ
et v
alue
. For
mor
e de
tails
abo
ut
CV
/CC
mod
e op
erat
ion,
see
pag
e18.
Aut
omat
ic
trac
king
mod
e Th
e fr
ont p
anel
dis
play
(CH
1, C
H2)
sho
ws
the
outp
ut v
olta
ge o
r cur
rent
. Whe
n op
erat
ing
in th
e tr
acki
ng m
ode,
the
pow
er s
uppl
y w
ill
auto
mat
ical
ly c
onne
ct to
the
auto
- tra
ckin
g m
ode.
Dyn
amic
load
W
hen
used
in a
udio
pro
duct
ion
lines
, the
pow
er
supp
ly w
ill p
rovi
de a
con
tinuo
us o
r dyn
amic
load
co
nnec
tor.
Whe
n th
e co
nnec
tors
are
con
nect
ed to
th
e po
sitio
n “O
N”,
a s
tabl
e D
C c
urre
nt p
ower
will
be
pro
vide
d fo
r aud
io p
ower
am
plifi
ers.
OV
ERV
IEW
11
Seri
es L
ineu
p /
Mai
n Fe
atur
es
Seri
es L
ineu
p
Mod
el
V M
eter
A M
eter
USB
Tr
acki
ng E
rror
GPD
-330
3D
3 di
git
3 di
git
Yes
≤ 0
.5%
+ 5
0mV
of M
aste
r
GPD
-330
3S
5 di
git
4 di
git
Yes
≤ 0
.5%
+ 1
0mV
of M
aste
r
Mai
n Fe
atur
es
Perf
orm
ance
•
Low
noi
se: C
oolin
g fa
n co
ntro
lled
by H
eats
ink
tem
pera
ture
• C
ompa
ct s
ize,
ligh
t wei
ght
Ope
ratio
n •
Con
stan
t Vol
tage
/ C
onst
ant C
urre
nt o
pera
tion
• Tr
acki
ng S
erie
s /
Trac
king
par
alle
l ope
ratio
n
• O
utpu
t On/
Off
con
trol
• 3
outp
uts:
30V
/3A
x 2
, 2.5
V/3
.3V
/5V
/3A
x 1
• D
igita
l pan
el c
ontr
ol
• 4
sets
of p
anel
set
up s
ave/
reca
ll
• C
oars
e an
d fin
e V
olta
ge/C
urre
nt c
ontr
ol
• So
ftwar
e ca
libra
tion
• Bu
zzer
out
put
• K
ey lo
ck fu
nctio
n
Prot
ectio
n •
Ove
rloa
d pr
otec
tion
• Re
vers
e po
lari
ty p
rote
ctio
n
Inte
rfac
e •
USB
for r
emot
e co
ntro
l
GPD
-330
3 Se
ries
Use
r M
anua
l
12
Prin
cipl
e of
Ope
ratio
n
Ove
rvie
w
The
pow
er s
uppl
y co
nsis
ts o
f the
follo
win
g.
• A
C in
put c
ircu
it
• Tr
ansf
orm
er
• Bi
as p
ower
sup
ply
incl
udin
g re
ctifi
er, f
ilter
, pr
e-re
gula
tor a
nd re
fere
nce
volta
ge s
ourc
e
• M
ain
regu
lato
r cir
cuit
incl
udin
g th
e m
ain
rect
ifier
and
filte
r, se
ries
regu
lato
r, cu
rren
t co
mpa
rato
r, vo
ltage
com
para
tor,
refe
renc
e vo
ltage
am
plifi
er, r
emot
e de
vice
and
rela
y co
ntro
l cir
cuit
The
bloc
k di
agra
m b
elow
sho
ws
the
circ
uit
arra
ngem
ent.
The
sing
le p
hase
inpu
t pow
er is
co
nnec
ted
to th
e tr
ansf
orm
er th
roug
h th
e in
put
circ
uit.
Det
ails
of e
ach
part
are
des
crib
ed in
the
next
pag
e.
Blo
ck d
iagr
am
OV
ERV
IEW
13
Rec
tifie
r Th
e au
xilia
ry re
ctifi
ers
D10
11~
D10
14 p
rovi
de b
ias
volta
ge fi
ltere
d by
the
capa
cito
rs C
102
and
C10
3,
for t
he p
re-r
egul
ator
s U
101
and
U10
2. T
hey
prov
ide
a re
gula
ted
volta
ge fo
r oth
er m
odul
es.
Mai
n R
ecti
fier
The
mai
n re
ctifi
er is
a fu
ll w
ave
brid
ge re
ctifi
er. I
t pr
ovid
es th
e po
wer
afte
r the
rect
ifier
is fi
ltere
d by
th
e ca
paci
tor C
101,
and
then
regu
late
d vi
a a
seri
es-
wou
nd re
gula
tor,
whi
ch is
fina
lly d
eliv
ered
to th
e ou
tput
term
inal
.
Cur
rent
Lim
iter
U10
4 ac
ts a
s a
curr
ent l
imite
r. W
hen
the
curr
ent i
s ov
er p
rede
term
ined
ratin
g, U
104
is a
ctiv
ated
and
de
crea
ses
the
curr
ent.
U20
8 pr
ovid
es a
refe
renc
e vo
ltage
. U20
6 is
the
inve
rter
am
plifi
er. U
103
is a
co
mpa
rato
r am
plifi
er w
hich
com
pare
s re
fere
nce
volta
ge a
nd fe
edba
ck v
olta
ge, a
nd th
en d
eliv
ers
to
Q10
3, Q
104,
whi
ch th
en c
alib
rate
s th
e ou
tput
vo
ltage
.
Ove
rloa
d W
hen
the
unit
is o
verl
oade
d, Q
107
activ
ates
to
cont
rol t
he c
urre
nt m
agni
tude
of
Q10
4, to
lim
it th
e ou
tput
cur
rent
. The
rela
y co
ntro
l cir
cuit
cont
rols
th
e po
wer
dis
sipa
tion
in th
e se
ries
-wou
nd
regu
late
d ci
rcui
t.
GPD
-330
3 Se
ries
Use
r M
anua
l
14
Fron
t Pan
el O
verv
iew
Dis
play
VoltM
eter
D
ispl
ays
CH
1 or
CH
2 ou
tput
vol
tage
.
G
PD-3
303S
(5
digi
ts)
GPD
-330
3D (
3 di
gits
)
Am
pMet
er
Dis
play
s C
H1
or C
H2
outp
ut c
urre
nt.
G
PD-3
303S
(4
digi
ts)
GPD
-330
3D (
3 di
gits
)
OV
ERV
IEW
15
Con
trol
Pan
el
Mem
ory
Key
s
Save
s or
reca
lls p
anel
set
tings
. Fou
r se
tting
s, 1
~ 4
, are
ava
ilabl
e. F
or
save
/rec
all d
etai
ls, s
ee p
age3
4.
CH
1/C
H2/
Bee
p K
eys
Sele
cts
the
outp
ut c
hann
el fo
r lev
el
adju
stm
ent.
For l
evel
set
ting
deta
ils,
see
page
23. P
ress
ing
and
hold
ing
CH
2 ke
y en
a ble
s be
ep s
ound
. For
de
tails
, see
pag
e21.
Para
llel/
Seri
es
Key
s
Act
ivat
es T
rack
ing
Para
llel o
pera
tion
or T
rack
ing
Seri
es o
pera
tion,
For
de
tails
, see
pag
e27.
Lock
Key
Lock
s or
unl
ocks
the
fron
t pan
el
setti
ngs.
For
det
ails
, see
pag
e42H22.
Out
put
Key
Turn
s th
e ou
tput
on
or o
ff.
Volta
ge K
nobs
Adj
usts
the
outp
ut v
olta
ge le
vel f
or
CH
1 or
CH
2. P
ress
ing
the
knob
sw
itche
s co
arse
and
fine
leve
l set
ting.
Cur
rent
Kno
bs
Adj
usts
the
outp
ut c
urre
nt le
vel f
or
CH
1 or
CH
2. P
ress
ing
the
knob
sw
itche
s co
arse
and
fine
leve
l set
ting.
Pow
er S
witc
h
Turn
s O
n o
r Off
the
mai
n po
wer
. Fo
r pow
er u
p se
quen
ce, s
ee p
age43H1
9.
GPD
-330
3 Se
ries
Use
r M
anua
l
16
Term
inal
s
Def
ault
Term
inal
s
Euro
pean
Ter
min
als
GN
D T
erm
inal
Acc
epts
a g
roun
ding
wir
e.
CH
1 O
utpu
t
Out
puts
CH
1 vo
ltage
and
cur
rent
.
CH
1 C
V/C
C
Indi
cato
r
Indi
cate
s C
H1
Con
stan
t Vol
tage
or
Con
stan
t Cur
rent
sta
te.
CH
2 O
utpu
t
Out
puts
CH
2 vo
ltage
and
cur
rent
.
CH
2 C
V/C
C/P
AR
In
dica
tor
Indi
cate
s C
H2
Con
stan
t Vol
tage
, C
onst
ant C
urre
nt, o
r Tra
ckin
g Pa
ralle
l ope
ratio
n m
ode.
CH
3 O
utpu
t
Out
puts
CH
3 vo
ltage
and
cur
rent
.
CH
3 O
verl
oad
Indi
cato
r
Indi
cate
s w
hen
CH
3 ou
tput
cur
rent
is
over
load
ed.
CH
3 Vo
ltage
Se
lect
or
Sele
cts
CH
3 ou
tput
vol
tage
: 2.5
V,
3.3V
, or 5
V.
OV
ERV
IEW
17
Rea
r P
anel
Ove
rvie
w
US
B C
onne
ctor
AC
Sel
ecto
rC
oolin
g Fa
nP
ower
Cor
d /
Fuse
Soc
ket
USB
Con
nect
or
Acc
epts
a U
SB s
lave
con
nect
or fo
r co
mm
and-
base
d re
mot
e co
ntro
l (p
age3
6).
Pow
er C
ord
/ Fu
se S
ocke
t
The
pow
er c
ord
sock
et a
ccep
ts th
e A
C m
ains
: 115
V/2
30V
, 50/
60H
z.
For p
ower
up
deta
ils, s
ee p
age1
9.
The
fuse
hol
der c
onta
ins
the
AC
m
ain
fuse
. For
fuse
repl
acem
ent
deta
ils, s
ee p
age4
6.
AC
Sel
ecto
r
Sele
cts
AC
vol
tage
: 100
V/
120V
/ 22
0V/
230V
.
GPD
-330
3 Se
ries
Use
r M
anua
l
18
CV
/CC
Cro
ssov
er C
hara
cter
istic
s
Bac
kgro
und
The
GPD
-330
3 se
ries
aut
omat
ical
ly s
witc
hes
betw
een
cons
tant
vol
tage
mod
e (C
V) a
nd c
onst
ant
curr
ent m
ode
(CC
), ac
cord
ing
to lo
ad c
ondi
tion.
CV
mod
e W
hen
the
curr
ent l
evel
is s
mal
ler t
han
the
outp
ut
setti
ng, t
he G
PD-3
303
seri
es o
pera
tes
in C
onst
ant
Vol
tage
mod
e. T
he in
dica
tor o
n th
e fr
ont p
anel
tu
rns
gree
n (C
.V.)
The
Vol
tage
leve
l is
kept
at t
he
setti
ng a
nd th
e C
urre
nt le
vel f
luct
uate
s ac
cord
ing
to th
e lo
ad c
ondi
tion
until
it re
ache
s th
e ou
tput
cu
rren
t set
ting.
CC
mod
e W
hen
the
curr
ent l
evel
reac
hes
the
outp
ut s
ettin
g,
the
GPD
-330
3 se
ries
sta
rts
oper
atin
g in
Con
stan
t C
urre
nt m
ode.
The
indi
cato
r on
the
fron
t pan
el
turn
s re
d (C
.C.)
The
Cur
rent
leve
l is
kept
at t
he
setti
ng b
ut th
e V
olta
ge le
vel b
ecom
es lo
wer
than
th
e se
tting
, in
orde
r to
supp
ress
the
outp
ut p
ower
le
vel f
rom
ove
rloa
d. W
hen
the
curr
ent l
evel
be
com
es lo
wer
than
the
setti
ng, t
he G
PD-3
303
seri
es g
oes
back
to th
e C
onst
ant V
olta
ge m
ode.
Dia
gram
Vm
ax
Imax
Con
stan
tV
olta
ge
Con
stan
tC
urre
nt
Vou
t
Iout
SETU
P
19
SETU
P This
cha
pter
des
crib
es h
ow to
pro
perl
y po
wer
up
and
conf
igur
e th
e G
PD-3
303
seri
es b
efor
e op
erat
ion.
Pow
er U
p
Sele
ct A
C v
olta
ge
Befo
re p
ower
ing
up th
e po
wer
su
pply
, sel
ect t
he A
C in
put
volta
ge fr
om th
e re
ar p
anel
.
Con
nect
AC
po
wer
cor
d C
onne
ct th
e A
C p
ower
cor
d to
th
e re
ar p
anel
soc
ket.
Pow
er O
n Pr
ess
the
Pow
er s
witc
h to
turn
on
the
pow
er. T
he d
ispl
ay s
how
s th
e in
itial
izat
ion
scre
en w
ith th
e m
odel
nam
e, fo
llow
ed b
y th
e la
st re
calle
d se
tting
s.
Pow
er O
ff Pr
ess
the
Pow
er s
witc
h ag
ain
to
turn
off
the
pow
er.
GPD
-330
3 Se
ries
Use
r M
anua
l
20
Load
Cab
le C
onne
ctio
n
GTL
-104
1.
Tur
n th
e te
rmin
al
coun
terc
lock
wis
e an
d lo
osen
th
e sc
rew
.
2. I
nser
t the
cab
le te
rmin
al.
3.
Tur
n th
e te
rmin
al c
lock
wis
e an
d tig
hten
the
scre
w.
GTL
-105
In
sert
the
plug
into
the
sock
et.
GTL
-203
, 204
In
sert
the
plug
into
the
term
inal
.
Wir
e ty
pe
Whe
n us
ing
load
cab
les
othe
r tha
n th
e at
tach
ed,
mak
e su
re th
ey h
ave
enou
gh c
urre
nt c
apac
ity fo
r m
inim
izin
g ca
ble
loss
and
load
line
impe
danc
e.
Vol
tage
dro
p ac
ross
a w
ire
shou
ld n
ot e
xces
s 0.
5V.
The
follo
win
g lis
t is
the
wir
e cu
rren
t rat
ing
at
450A
/cm
2 .
W
ire
size
(AW
G)
Max
imum
cur
rent
(A
)
20
2.
5
18
4
16
6
14
10
12
16
SETU
P
21
Out
put
On/
Off
Pane
l ope
ratio
n Pr
essi
ng th
e O
utpu
t key
turn
s on
all
CH
1/2
/3 o
utpu
ts.
Th
e ke
y LE
D a
lso
turn
s on
. Pre
ssin
g th
e O
utpu
t ke
y ag
ain
turn
s th
e ou
tput
and
the
key
LED
off
.
Aut
omat
ic o
utpu
t of
f A
ny o
f the
follo
win
g ac
tions
dur
ing
outp
ut o
n au
tom
atic
ally
turn
s it
off.
They
mig
ht in
volv
e su
dden
and
har
mfu
l cha
nge
in th
e ou
tput
leve
l.
•
Cha
nge
the
oper
atio
n m
ode
betw
een
inde
pend
ent /
trac
king
ser
ies
/ tr
acki
ng p
aral
lel
• Re
calli
ng o
ther
set
ups
from
the
mem
ory
• St
orin
g th
e se
tup
into
the
mem
ory
Bee
p O
n/O
ff
Pane
l ope
ratio
n By
def
ault,
the
beep
sou
nd is
en
able
d. T
o tu
rn o
ff th
e be
ep,
pres
s th
e C
H2
key
for 2
sec
onds
.
A
bee
p co
mes
out
and
the
beep
set
ting
will
be
turn
ed o
ff. T
o en
able
the
beep
, pre
ss th
e C
H2
key
agai
n fo
r 2 s
econ
ds.
List
of b
eep
The
follo
win
g op
erat
ions
bee
p w
hen
the
beep
se
tting
is o
n.
•
Pow
er o
n
• IN
DEP
– S
ER –
PA
RA
mod
e sw
itchi
ng
• Se
tup
save
/rec
all
• V
olta
ge/c
urre
nt k
nob
fine/
coar
se s
witc
hing
• O
utpu
t on/
off
• Pa
nel l
ock/
unlo
ck
• C
H1/
CH
2 ou
tput
le
vel k
nob
switc
hing
• V
olta
ge/c
urre
nt le
vel
reac
hing
min
imum
(z
ero)
leve
l
GPD
-330
3 Se
ries
Use
r M
anua
l
22
Fron
t Pan
el L
ock
Pane
l ope
ratio
n Pr
ess
the
LOC
K k
ey to
lock
th
e fr
ont p
anel
key
op
erat
ion.
The
key
LED
tu
rns
on. T
o un
lock
, pre
ss th
e LO
CK
key
for 2
se
cond
s. T
he k
ey L
ED a
lso
turn
s of
f.
Not
e Th
e O
UTP
UT
key
is n
ot
affe
cted
by
the
lock
op
erat
ion.
OPE
RAT
ION
23
OPE
RAT
ION
CH
1/C
H2
Inde
pend
ent M
ode
Bac
kgro
und
/ C
onne
ctio
n C
H1
and
CH
2 ou
tput
s w
ork
inde
pend
ent o
f eac
h ot
her.
Out
put
ratin
g 0
~ 30
V/0
~3A
for e
ach
chan
nel
Pane
l ope
ratio
n 1.
Mak
e su
re th
e PA
RA/
IND
EP a
nd S
ER/I
ND
EP
keys
are
turn
ed o
ff (t
he k
ey
LED
s ar
e of
f).
2.
Con
nect
the
load
to th
e fr
ont p
anel
term
inal
s,
CH
1 +/
−, C
H2
+/−.
GPD
-330
3 Se
ries
Use
r M
anua
l
24
Not
e: t
his
diag
ram
sho
ws
non-
Euro
pean
ter
min
als.
3.
Set
the
CH
1 ou
tput
vol
tage
an
d cu
rren
t. Pr
ess
the
CH
1 ke
y (L
ED tu
rns
on) a
nd th
en
use
the
Vol
tage
and
Cur
rent
kn
ob.
By d
efau
lt, th
e V
olta
ge a
nd
Cur
rent
kno
b w
ork
in th
e co
arse
mod
e. T
o ac
tivat
e th
e fin
e m
ode,
pre
ss th
e kn
ob to
tu
rn th
e FI
NE
LED
on.
(For
CH
1)
(Fin
e co
ntro
l)
• C
oars
e: 0
.1V
or 0
.1A
@ ro
tatio
n cl
ick
• Fi
ne: t
he s
mal
lest
dig
it @
rota
tion
clic
k
4.
Rep
eat t
he a
bove
set
tings
for t
he C
H2.
5.
To
turn
on
the
outp
ut, p
ress
th
e ou
tput
key
. The
key
LE
D tu
rns
on a
nd th
e C
H1
/ C
H2
indi
cato
r sho
ws
the
outp
ut m
ode,
CV
or C
C.
(CH
1)
(CH
2)
OPE
RAT
ION
25
CH
3 In
depe
nden
t M
ode
Bac
kgro
und
/ C
onne
ctio
n Th
e C
H3
ratin
g is
2.5
V/3
.3V
/5V
, 3A
fixe
d. It
w
orks
inde
pend
ently
from
CH
1 an
d C
H2,
re
gard
less
of t
heir
mod
es.
Out
put
ratin
g 2.
5V/3
.3V
/5V
, 3A
fixe
d
No
Trac
king
Se
ries
/Par
alle
l C
H3
does
not
hav
e tr
acki
ng s
erie
s/pa
ralle
l mod
e.
Als
o, C
H3
outp
ut is
not
affe
cted
by
CH
1 an
d C
H2
mod
es.
Pane
l ope
ratio
n 1.
Con
nect
the
load
to th
e fr
ont
pane
l CH
3 +/
− te
rmin
al.
(the
diag
ram
sho
ws
non-
Euro
pean
term
inal
s)
2.
Sel
ect t
he o
utpu
t vol
tage
, 2.
5V/3
.3V
/5V
usi
ng th
e C
H3
volta
ge s
elec
tor k
ey.
GPD
-330
3 Se
ries
Use
r M
anua
l
26
3.
To
turn
on
the
outp
ut, p
ress
th
e ou
tput
key
. The
key
LE
D tu
rns
on.
CV
→ C
C
Whe
n th
e ou
tput
Cur
rent
leve
l ex
ceed
s 3A
, the
ove
rloa
d in
dica
tor t
urns
red
and
CH
3 op
erat
ion
mod
e sw
itche
s fr
om
Con
stan
t Vol
tage
to C
onst
ant
Cur
rent
.
N
ote:
“ov
erlo
ad”
in th
is c
ase
does
not
mea
n an
ab
norm
al o
pera
tion.
OPE
RAT
ION
27
CH
1/C
H2
Trac
king
Ser
ies
Mod
e
Bac
kgro
und
Trac
king
ser
ies
oper
atio
n do
uble
s th
e V
olta
ge
capa
city
of t
he G
PD-3
303
seri
es b
y in
tern
ally
co
nnec
ting
CH
1 (M
aste
r) a
nd C
H2
(Sla
ve) i
n se
rial
an
d co
mbi
ning
the
outp
ut to
a s
ingl
e ch
anne
l. C
H1
(Mas
ter)
con
trol
s th
e co
mbi
ned
Vol
tage
out
put
leve
l.
The
follo
win
g de
scri
bes
two
type
of c
onfig
urat
ions
de
pend
ing
on th
e co
mm
on g
roun
d us
age.
Trac
king
ser
ies
with
out c
omm
on te
rmin
al
Con
nect
ion
Out
put
ratin
g 0
~ 60
V/0
~ 3
A
1.
Pre
ss th
e SE
R/I
ND
EP k
ey
to a
ctiv
ate
the
trac
king
se
ries
mod
e. T
he k
ey L
ED
turn
s on
.
GPD
-330
3 Se
ries
Use
r M
anua
l
28
2.
Con
nect
the
load
to th
e fr
ont p
anel
term
inal
s,
CH
1+ &
CH
2− (S
ingl
e su
pply
).
Not
e: t
his
diag
ram
sho
ws
non-
Euro
pean
ter
min
als.
3.
Pre
ss th
e C
H2
key
(LED
tu
rns
on) a
nd th
en u
se th
e C
urre
nt k
nob
to s
et th
e C
H2
outp
ut c
urre
nt to
the
max
imum
leve
l (3.
0A).
By d
efau
lt, th
e V
olta
ge a
nd
Cur
rent
kno
b w
ork
in th
e co
arse
mod
e. T
o ac
tivat
e th
e fin
e m
ode,
pre
ss th
e kn
ob to
tu
rn th
e FI
NE
LED
on.
(Fin
e co
ntro
l)
• C
oars
e: 0
.1V
or 0
.1A
@ ro
tatio
n cl
ick
• Fi
ne: t
he s
mal
lest
dig
it @
rota
tion
clic
k
4.
Pre
ss th
e C
H1
key
(LED
tu
rns
on) a
nd th
en u
se th
e V
olta
ge a
nd C
urre
nt k
nob
to s
et th
e ou
tput
vol
tage
an
d cu
rren
t lev
el.
5.
To
turn
on
the
outp
ut, p
ress
th
e ou
tput
key
. The
key
LED
tu
rns
on.
6.
Ref
er to
the
CH
1 (M
aste
r) m
eter
and
indi
cato
r fo
r the
out
put s
ettin
g le
vel a
nd C
V/C
C s
tatu
s.
OPE
RAT
ION
29
Volta
ge le
vel
Dou
ble
the
read
ing
on th
e C
H1
Vol
tage
met
er. I
n th
e ab
ove
case
, the
act
ual o
utpu
t is
20.0
x 2
=
40.0
V.
Cur
rent
leve
l C
H1
met
er re
adin
g sh
ows
the
outp
ut C
urre
nt. I
n th
e ab
ove
case
, 2.0
00A
. (C
H2
Cur
rent
co
ntro
l mus
t be
in th
e M
axim
um p
ositi
on=3
.0A
).
Trac
king
ser
ies
with
com
mon
term
inal
Con
nect
ion
Out
put
ratin
g 0~
30V
/0~3
A fo
r CH
1 ~
CO
M
0~–3
0V/0
~3A
for C
H2
~ C
OM
GPD
-330
3 Se
ries
Use
r M
anua
l
30
1.
Pre
ss th
e SE
R/I
ND
EP k
ey to
ac
tivat
e th
e tr
acki
ng s
erie
s m
ode.
The
key
LED
turn
s on
.
2.
Con
nect
the
load
to th
e fr
ont p
anel
term
inal
s,
CH
1+ &
CH
2−. U
se th
e C
H1
(−) t
erm
inal
as
the
com
mon
line
con
nect
ion.
Not
e: t
his
diag
ram
sho
ws
non-
Euro
pean
ter
min
als.
3.
Pre
ss th
e C
H1
key
(LED
turn
s on
) and
use
the
Vol
tage
kno
b to
set
the
mas
ter &
sla
ve
outp
ut v
olta
ge (t
he s
ame
leve
l fo
r bot
h ch
anne
ls).
By d
efau
lt, th
e V
olta
ge a
nd
Cur
rent
kno
b w
ork
in th
e co
arse
mod
e. T
o ac
tivat
e th
e fin
e m
ode,
pre
ss th
e kn
ob to
tu
rn th
e FI
NE
LED
on.
(mas
ter
& s
lave
)
(Fin
e co
ntro
l)
• C
oars
e: 0
.1V
or 0
.1A
@ ro
tatio
n cl
ick
• Fi
ne: t
he s
mal
lest
dig
it @
rota
tion
clic
k
4.
Use
the
Cur
rent
kno
b to
set
th
e m
aste
r out
put c
urre
nt.
5.
To
turn
on
the
outp
ut (a
nd
LED
), pr
ess
the
outp
ut k
ey.
OPE
RAT
ION
31
6.
For
the
mas
ter (
CH
1) o
utpu
t lev
el a
nd C
V/C
C
stat
us, r
efer
to th
e C
H1
met
er a
nd in
dica
tor.
Mas
ter
(CH
1)
volta
ge le
vel
CH
1 m
eter
read
ing
show
s th
e ou
tput
vol
tage
. In
the
abov
e ca
se,
20.0
V.
Mas
ter
(CH
1)
curr
ent
leve
l C
H1
met
er re
adin
g sh
ows
the
outp
ut c
urre
nt. I
n th
e ab
ove
case
, 2.
000A
.
7.
Pre
ss th
e C
H2
key
(LED
turn
s on
) and
use
the
Cur
rent
kno
b to
set
the
slav
e ou
tput
cur
rent
.
8.
For
the
slav
e (C
H2)
out
put l
evel
and
CV
/CC
st
atus
, ref
er to
the
CH
1/C
H2
met
er a
nd C
H2
indi
cato
r.
Slav
e (C
H2)
vo
ltage
leve
l Th
e C
H2
met
er re
adin
g sh
ows
the
outp
ut v
olta
ge. I
n th
e ab
ove
case
, 20.
0V.
Slav
e (C
H2)
cu
rren
t le
vel
The
CH
2 m
eter
read
ing
show
s th
e ou
tput
cur
rent
. In
the
abov
e ca
se, 3
.000
A.
GPD
-330
3 Se
ries
Use
r M
anua
l
32
CH
1/C
H2
Trac
king
Par
alle
l Mod
e
Bac
kgro
und
/ C
onne
ctio
n Tr
acki
ng p
aral
lel o
pera
tion
doub
les
the
curr
ent
capa
city
of t
he G
PD-3
303
seri
es b
y in
tern
ally
co
nnec
ting
CH
1 an
d C
H2
in p
aral
lel a
nd
com
bini
ng th
e ou
tput
to a
sin
gle
chan
nel.
CH
1 co
ntro
ls th
e co
mbi
ned
outp
ut.
Out
put
ratin
g 0
~ 30
V/0
~ 6
A
1.
Pre
ss th
e PA
RA/I
ND
EP k
ey
to a
ctiv
ate
the
trac
king
pa
ralle
l mod
e. T
he k
ey L
ED
turn
s on
.
2.
Con
nect
the
load
to th
e C
H1
+/−
term
inal
s.
Not
e: t
his
diag
ram
sho
ws
non-
Euro
pean
ter
min
als.
OPE
RAT
ION
33
3.
To
turn
on
the
outp
ut, p
ress
th
e ou
tput
key
. The
key
LE
D tu
rns
on.
4.
The
CH
2 in
dica
tor t
urns
re
d, in
dica
ting
trac
king
pa
ralle
l (PA
RA) m
ode.
5.
Pre
ss th
e C
H1
key
(LED
tu
rns
on) a
nd th
en u
se th
e V
olta
ge a
nd C
urre
nt k
nob
to s
et th
e ou
tput
vol
tage
an
d cu
rren
t. Th
e C
H2
outp
ut c
ontr
ol is
dis
able
d.
By d
efau
lt, th
e V
olta
ge a
nd
Cur
rent
kno
b w
ork
in th
e co
arse
mod
e. T
o ac
tivat
e th
e fin
e m
ode,
pre
ss th
e kn
ob to
tu
rn th
e FI
NE
LED
on.
(Fin
e co
ntro
l)
6.
For
the
outp
ut le
vel a
nd C
V/C
C s
tatu
s, re
fer t
o th
e C
H1
met
er a
nd in
dica
tor.
Volta
ge le
vel
The
CH
1 m
eter
read
ing
show
s th
e ou
tput
vol
tage
. In
the
abov
e ca
se, 2
0.0V
.
Cur
rent
leve
l D
oubl
e th
e am
ount
of C
H1
curr
ent m
eter
read
ing.
In th
e ab
ove
case
, 2.0
A x
2 =
4.0
A.
GPD
-330
3 Se
ries
Use
r M
anua
l
34 SA
VE/
REC
ALL
SET
UP
Save
Set
up
Bac
kgro
und
The
fron
t pan
el s
ettin
gs c
an b
e st
ored
into
one
of
the
four
inte
rnal
mem
orie
s.
Con
tent
s Th
e fo
llow
ing
list s
how
s th
e se
tup
cont
ents
.
• In
depe
nden
t / tr
acki
ng s
erie
s /
trac
king
par
alle
l m
ode
• C
H1/
CH
2 kn
ob s
elec
tion
• Fi
ne/c
oars
e ed
iting
mod
e
• O
utpu
t vol
tage
/cur
rent
leve
l
The
follo
win
g se
tting
s ar
e al
way
s sa
ved
as “
off”
.
• O
utpu
t on/
off
• Fr
ont p
anel
lock
/unl
ock
Pane
l ope
ratio
n Pr
ess
one
of th
e 1~
4 M
emor
y ke
ys fo
r 2 s
econ
ds, f
or e
xam
ple
mem
ory
1. T
he p
anel
set
tings
ar
e sa
ved
in m
emor
y 1
and
the
key
LED
turn
s on
. Whe
n th
e pa
nel s
ettin
gs a
re m
odifi
ed, t
he
LED
turn
s of
f.
Not
e W
hen
a se
tting
is s
tore
d, th
e ou
tput
aut
omat
ical
ly
turn
s of
f.
SAV
E/R
ECA
LL S
ETU
P
35
Rec
all S
etup
Bac
kgro
und
The
fron
t pan
el s
ettin
gs c
an b
e re
calle
d fr
om o
ne o
f th
e fo
ur in
tern
al m
emor
ies.
Con
tent
s Th
e fo
llow
ing
list s
how
s th
e se
tup
cont
ents
.
• In
depe
nden
t / tr
acki
ng s
erie
s /
trac
king
par
alle
l m
ode
• C
H1/
CH
2 kn
ob s
elec
tion
• Fi
ne/c
oars
e ed
iting
mod
e
• O
utpu
t vol
tage
/cur
rent
leve
l
The
follo
win
g se
tting
s ar
e al
way
s re
calle
d as
“of
f”.
• O
utpu
t on/
off
• Fr
ont p
anel
lock
/unl
ock
Pane
l ope
ratio
n Pr
ess
one
of th
e 1~
4 M
emor
y ke
ys, f
or e
xam
ple
mem
ory
1.
The
pane
l set
tings
sav
ed in
m
emor
y 1
are
reca
lled.
The
key
LE
D tu
rns
on. W
hen
the
pane
l se
tting
s ar
e m
odifi
ed, t
he L
ED
turn
s of
f.
Not
e W
hen
a se
tting
is re
calle
d, th
e ou
tput
au
tom
atic
ally
turn
s of
f.
GPD
-330
3 Se
ries
Use
r M
anua
l
36 R
EMO
TE C
ON
TRO
L
Rem
ote
Con
trol
Set
up
Bac
kgro
und
The
GPD
-330
3D a
nd G
PD-3
303S
are
cap
able
of
bein
g re
mot
ely
cont
rolle
d vi
a th
e U
SB c
onne
ctio
n.
Inte
rfac
e
USB
sla
ve p
ort,
rear
pan
el
CO
M s
etti
ng
Set u
p th
e C
OM
por
t ins
ide
the
PC a
ccor
ding
to
the
follo
win
g lis
t.
• Ba
ud ra
te: 9
600
• Pa
rity
bit:
Non
e
• D
ata
bit:
8
• St
op b
it: 1
• D
ata
flow
con
trol
: Non
e
Func
tion
ality
ch
eck
Run
this
que
ry c
omm
and
via
the
term
inal
ap
plic
atio
n su
ch a
s M
TTTY
(Mul
ti-th
read
ed T
TY).
*ID
N?
This
sho
uld
retu
rn th
e id
entif
icat
ion
info
rmat
ion:
M
anuf
actu
rer,
mod
el n
ame,
ser
ial n
umbe
r, fir
mw
are
vers
ion.
GW
INST
EK, G
PD-3
303x
, SN
: xxx
xxxx
x, V
x.xx
REM
OTE
CO
NTR
OL
37
Rem
ote
Con
nect
ion
Step
Ente
ring
the
re
mot
e co
ntro
l m
ode
1. C
onne
ct th
e U
SB c
able
to th
e sl
ave
port
.
2. T
he c
onne
ctio
n w
ill b
e au
tom
atic
ally
es
tabl
ishe
d, a
nd th
e fr
ont p
anel
sho
ws
“USB
…YE
S” m
essa
ge.
3.
The
pow
er s
uppl
y al
so a
utom
atic
ally
ent
ers
the
lock
sta
te (t
he L
ock
key
will
bec
ome
activ
ated
).
Leav
ing
the
rem
ote
cont
rol
mod
e
1. D
isco
nnec
t the
USB
cab
le fr
om th
e re
ar.
2. T
he d
ispl
ay s
how
s “U
SB…
NO
” m
essa
ge.
3.
Unl
ock
the
pow
er s
uppl
y by
kee
p pr
essi
ng th
e Lo
ck k
ey u
ntil
it tu
rns
off.
4.
The
pow
er s
uppl
y go
es b
ack
to th
e lo
cal
oper
atio
n m
ode.
GPD
-330
3 Se
ries
Use
r M
anua
l
38
Com
man
d Sy
ntax
Com
man
d fo
rmat
1: c
omm
and
head
er
2: o
utpu
t cha
nnel
3: s
epar
ator
4: p
aram
eter
Out
put
chan
nel
1 (C
H1)
or 2
(CH
2)
Para
met
er
Type
D
escr
iptio
n Ex
ampl
e
<B
oole
an>
bool
ean
logi
c 0
(off
), 1
(on)
<N
R1>
in
tege
rs
0, 1
, 2, 3
<N
R2>
de
cim
al n
umbe
rs
0.1,
3.1
4, 8
.5
Not
e C
omm
ands
are
not
cas
e-se
nsiti
ve.
Erro
r M
essa
ges
The
follo
win
g er
ror m
essa
ges
mig
ht a
ppea
r whe
n th
e G
PS-3
303D
or
3303
S ca
nnot
acc
ept t
he c
omm
and.
Mes
sage
con
tent
s D
escr
ipti
ons
Prog
ram
mne
mon
ic
too
long
Th
e co
mm
and
leng
th m
ust b
e 15
cha
ract
ers
or le
ss.
Inva
lid c
hara
cter
In
valid
cha
ract
ers,
suc
h as
sym
bols
, are
en
tere
d. E
xam
ple:
VO
UT#
Mis
sing
par
amet
er
The
para
met
er is
mis
sing
from
the
com
man
d.
Exam
ple:
VSE
T: (s
houl
d ha
ve a
num
ber)
Dat
a ou
t of
ran
ge
The
ente
red
valu
e ex
ceed
s th
e sp
ecifi
catio
n.
Exam
ple:
VSE
T:33
(sho
uld
be ≤
32V
)
Com
man
d no
t al
low
ed
The
ente
red
com
man
d is
not
allo
wed
in th
e ci
rcum
stan
ce. E
xam
ple:
tryi
ng to
set
CH
2 ou
tput
whi
le in
the
trac
king
mod
e.
Und
efin
ed h
eade
r Th
e en
tere
d co
mm
and
does
not
exi
st, o
r the
sy
ntax
is w
rong
.
REM
OTE
CO
NTR
OL
39
Com
man
d Li
st
• D
etai
led
desc
ript
ions
of e
ach
com
man
d st
art f
rom
the
next
pag
e.
• Th
e “H
ELP”
com
man
d sh
ows
all t
he b
elow
com
man
ds a
nd th
eir
mea
ning
s, e
xcep
t for
the
HEL
P co
mm
and
itsel
f.
ISET
<X>:
<NR
2>
Sets
the
outp
ut c
urre
nt.
ISET
<X>?
Re
turn
s th
e ou
tput
cur
rent
set
ting.
VSE
T<X
>:<N
R2>
Se
ts th
e ou
tput
vol
tage
.
VSE
T<X
>?
Retu
rns
the
outp
ut v
olta
ge s
ettin
g.
IOU
T<X
>?
Retu
rns
the
actu
al o
utpu
t cur
rent
.
VO
UT<
X>?
Re
turn
s th
e ac
tual
out
put v
olta
ge.
TRA
CK
<NR
1>
Sele
cts
the
oper
atio
n m
ode.
BEE
P<B
OO
LEA
N>
Turn
on
or o
ff th
e be
ep.
OU
T<B
OO
LEA
N>
Turn
on
or o
ff th
e ou
tput
.
STAT
US?
Re
turn
s th
e G
PS-3
303D
or G
PS-3
303S
sta
tus.
*ID
N?
Retu
rns
the
GPS
-330
3D o
r GPD
-330
3S
iden
tific
atio
n.
RC
L<N
R1>
Re
calls
a p
anel
set
ting.
SAV
<NR
1>
Save
s th
e pa
nel s
ettin
g.
HEL
P?
Show
s th
e co
mm
and
list.
ERR
? Re
turn
s th
e in
stru
men
t err
or m
essa
ges.
GPD
-330
3 Se
ries
Use
r M
anua
l
40
Com
man
d D
etai
ls
ISET
<X>:
<NR
2>
Des
crip
tion
Sets
the
outp
ut c
urre
nt.
Pane
l ope
ratio
n Se
e pa
ge23
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
ISET
1:2.
234
ISET
1:2.
23
Sets
the
CH
1 ou
tput
cur
rent
to
2.23
4A (f
or G
PD-3
303S
) Se
ts th
e C
H1
outp
ut c
urre
nt to
2.
23A
(for
GPD
-330
3D)
ISET
<X>?
Des
crip
tion
Retu
rns
the
outp
ut c
urre
nt s
ettin
g.
Pane
l ope
ratio
n Se
e pa
ge23
Res
pons
e ti
me
Min
imum
80m
s
Exam
ple
ISET
1?
Retu
rns
the
CH
1 ou
tput
cur
rent
set
ting
VSE
T<X
>:<N
R2>
Des
crip
tion
Sets
the
outp
ut v
olta
ge.
Pane
l ope
ratio
n Se
e pa
ge23
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
VSE
T1:2
0.34
5 V
SET1
:20.
3
Sets
the
CH
1 vo
ltage
to 2
0.34
5V
(for
GPD
-330
3S)
Sets
the
CH
1 vo
ltage
to 2
0.3V
(f
or G
PD-3
303D
)
REM
OTE
CO
NTR
OL
41
VSE
T<X
>?
Des
crip
tion
Retu
rns
the
outp
ut v
olta
ge s
ettin
g.
Res
pons
e ti
me
Min
imum
80m
s
Exam
ple
VSE
T1?
Retu
rns
the
CH
1 vo
ltage
set
ting
IOU
T<X
>?
Des
crip
tion
Retu
rns
the
actu
al o
utpu
t cur
rent
.
Res
pons
e ti
me
Min
imum
80m
s
Exam
ple
IOU
T1?
Retu
rns
the
CH
1 ou
tput
cur
rent
VO
UT<
X>?
Des
crip
tion
Retu
rns
the
actu
al o
utpu
t vol
tage
.
Pane
l ope
ratio
n Se
e pa
ge23
Res
pons
e ti
me
Min
imum
80m
s
Exam
ple
VO
UT1
? Re
turn
s th
e C
H1
outp
ut v
olta
ge
TRA
CK
<NR
1>
Des
crip
tion
Sele
cts
the
oper
atio
n m
ode:
inde
pend
ent,
trac
king
se
ries
, or t
rack
ing
para
llel.
Pane
l ope
ratio
n Se
e pa
ge27
NR
1 0:
Inde
pend
ent
1: T
rack
ing
seri
es
2: T
rack
ing
para
llel
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
TRA
CK
0 Se
lect
s th
e in
depe
nden
t mod
e
GPD
-330
3 Se
ries
Use
r M
anua
l
42
BEE
P<B
oole
an>
Des
crip
tion
Turn
s th
e be
ep o
n or
off
.
Pane
l ope
ratio
n Se
e pa
ge21
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
BEE
P1
Turn
s on
the
beep
OU
T<B
oole
an>
Des
crip
tion
Turn
s on
or o
ff th
e ou
tput
.
Pane
l ope
ratio
n Se
e pa
ge21
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
OU
T1
Turn
s on
the
outp
ut
STA
TUS?
Des
crip
tion
Retu
rns
the
GPD
-330
3D o
r GPD
-330
3S s
tatu
s.
Res
pons
e ti
me
Min
imum
400
ms
Con
tent
s 8
bits
in th
e fo
llow
ing
form
at
B
it It
em
Des
crip
tion
0
CH
1 0=
CC
mod
e, 1
=CV
mod
e
1 C
H2
0=C
C m
ode,
1=C
V m
ode
2,
3
Trac
king
01
=Ind
epen
dent
, 11=
Trac
king
ser
ies,
10
=Tra
ckin
g pa
ralle
l
4 B
eep
0=O
ff, 1
=On
5
N/A
N
/A
6
Out
put
0=O
ff, 1
=On
7
N/A
N
/A
REM
OTE
CO
NTR
OL
43
*ID
N?
Des
crip
tion
Retu
rns
the
GPD
-330
3D o
r GPD
-330
3S
iden
tific
atio
n.
Res
pons
e ti
me
Min
imum
300
ms
Con
tent
s G
W IN
STEK
,GPD
-330
3x,S
N: x
xxxx
xxx,
Vx.
xx
(Man
ufac
ture
r, m
odel
nam
e, s
eria
l num
ber,
firm
war
e ve
rsio
n)
RC
L<N
R1>
Des
crip
tion
Reca
lls a
pan
el s
ettin
g.
Pane
l ope
ratio
n Se
e pa
ge35
NR
1 1 –
4: M
emor
y 1
to 4
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
RC
L1
Reca
lls th
e pa
nel s
ettin
g st
ored
in
mem
ory
1
SAV
<NR
1>
Des
crip
tion
Stor
es th
e pa
nel s
ettin
g.
Pane
l ope
ratio
n Se
e pa
ge34
NR
1 1 –
4: M
emor
y 1
to 4
Res
pons
e ti
me
Min
imum
70m
s
Exam
ple
SAV
1 St
ores
the
pane
l set
ting
in
mem
ory
1
HEL
P?
Des
crip
tion
Show
s th
e co
mm
and
list.
Res
pons
e ti
me
Min
imum
100
0ms
GPD
-330
3 Se
ries
Use
r M
anua
l
44
Con
tent
s
ISET
<x>:
<NR
2> S
ets
the
valu
e of
cur
rent
.
VSE
T<x>
:<N
R2>
Set
s th
e va
lue
of v
olta
ge. x
:1=C
H1,
2=C
H2.
ISET
<x>?
Ret
urn
the
valu
e of
cur
rent
.
VSE
T<x>
? R
etur
n th
e va
lue
of v
olta
ge.
IOU
T<x>
? R
etur
ns a
ctua
l out
put
curr
ent，
VO
UT<
x>?
Ret
urns
act
ual o
utpu
t vo
ltage
.
TRA
CK
<NR
1> S
ets
the
outp
ut o
f the
pow
er s
uppl
y w
orki
ng o
n in
depe
nden
t or
tra
ckin
g m
ode.
NR
1:0=
IND
EP,1
=SER
,2=P
AR
A;
BEE
P<B
oole
an>
Sets
the
BEE
P st
ate
on o
r of
f.
OU
T<B
oole
an>
Sets
the
out
put
stat
e on
or
off.
STAT
US?
Ret
urns
the
pow
er s
uppl
y st
ate.
bit0
:(C
H1)
0=C
C,1
=CV
;bit1
:(C
H2)
0=C
C,1
=CV
;bit
23=
(TR
AC
K)0
1=IN
DEP
,11=
SER
,10=
PA
RA
;bit
4:(B
EEP)
0=O
FF,1
=O
N;b
it6:
(OU
T)0=
OFF
,1=
ON
;
*ID
N?
Ret
urns
inst
rum
ent
iden
tific
atio
n.
RC
L<N
R0>
Rec
all t
he s
etti
ng d
ata
from
the
mem
ory
whi
ch p
revi
ous
save
d.
SAV
<NR
0> S
aves
the
set
ting
data
to
mem
ory.
NR
0:1=
Mem
ory1
,2=M
emor
y2,3
=Mem
ory3
,4=M
emor
y4;
ERR
? R
etur
ns in
stru
men
t er
ror
mes
sage
s.
ERR
?
Des
crip
tion
Che
cks
the
erro
r sta
tus
of th
e in
stru
men
t and
re
turn
s th
e la
st e
rror
mes
sage
.
Res
pons
e ti
me
Min
imum
70m
s
Con
tent
s Se
e pa
ge38
for t
he li
st o
f err
or m
essa
ges.
FAQ
45
FAQ
Q1.
I pr
esse
d th
e pa
nel l
ock
key
but
the
outp
ut s
till t
urns
on/
off.
A1.
The
out
put k
ey is
not
aff
ecte
d by
the
pane
l loc
k ke
y op
erat
ion,
fo
r ens
urin
g sa
fety
.
Q2.
The
CH
3 ov
erlo
ad in
dica
tor
turn
ed o
n –
is t
his
an e
rror
?
A2.
No,
it s
impl
y m
eans
that
the
CH
3 ou
tput
cur
rent
reac
hed
the
max
imum
3.0
A a
nd th
e op
erat
ion
mod
e tu
rned
from
CV
(con
stan
t vo
ltage
) to
CC
(con
stan
t cur
rent
). Yo
u ca
n co
ntin
ue u
sing
the
pow
er
supp
ly, a
lthou
gh re
duci
ng th
e ou
tput
load
is re
com
men
ded.
Q3.
The
spe
cific
atio
ns d
oes
not
mat
ch t
he r
eal a
ccur
acie
s.
A3.
Mak
e su
re th
at th
e po
wer
sup
ply
is p
ower
ed o
n fo
r at l
east
30
min
utes
, with
in +
20°C
– +
30°C
.
Q4.
The
inte
rnal
mem
ory
is n
ot r
ecor
ding
the
pan
el s
ettin
g co
rrec
tly
– th
e ou
tput
sho
uld
be o
n.
A4.
The
out
put i
s al
way
s st
ored
or r
ecal
led
as “
off”
to e
nsur
e sa
fety
.
For m
ore
info
rmat
ion,
con
tact
you
r loc
al d
eale
r or G
WIn
stek
at
ww
w.g
win
stek
.com
.tw /
mar
ketin
g@go
odw
ill.c
om.tw
.
GPD
-330
3 Se
ries
Use
r M
anua
l
46 A
PPEN
DIX
23BFuse
Rep
lace
men
t
Step
s 1.
Tak
e of
f the
pow
er c
ord
and
rem
ove
the
fuse
so
cket
usi
ng a
min
us d
rive
r.
2.
Rep
lace
the
fuse
in th
e ho
lder
.
Rat
ing
• 10
0V/1
20V
:T6.
3A/2
50V
• 22
0V/2
30V
:T3.
15A
/250
V
APP
END
IX
47
24BSpec
ifica
tions
Th
e sp
ecifi
catio
ns a
pply
whe
n th
e G
PD-3
303
seri
es a
re p
ower
ed o
n fo
r at l
east
30
min
utes
und
er +
20°C
– +
30°C
.
Out
put
Rat
ings
C
H1/
CH
2 In
depe
nden
t 0
~ 30
V /
0 ~
3A
C
H1/
CH
2 Se
ries
0
~ 60
V /
0 ~
3A
C
H1/
CH
2 Pa
ralle
l 0
~ 30
V /
0 ~
6A
C
H3
2.5V
/3.3
V/5
.0V,
3A
Li
ne
≤ 0
.01%
+ 3
mV
Vo
ltage
R
egul
atio
n Lo
ad
≤ 0
.01%
+ 3
mV
(ra
ting
curr
ent ≤
3A
) ≤
0.0
2% +
5m
V (
ratin
g cu
rren
t >
3A)
R
ippl
e &
Noi
se ≤
1m
Vrm
s (5
Hz
~ 1M
Hz)
Rec
over
y Ti
me
≤ 1
00μs
(50
% lo
ad c
hang
e, m
inim
um
load
0.5
A)
Te
mpe
ratu
re
Coe
ffic
ient
≤
300
ppm
/°C
Cur
rent
R
egul
atio
n Li
ne
≤ 0
.2%
+ 3
mA
Lo
ad
≤ 0
.2%
+ 3
mA
Rip
ple
& N
oise
≤ 3
mA
rms
CH
3 Sp
ecifi
catio
n R
egul
atio
n Li
ne ≤
5m
V
Load
≤ 1
5mV
Rip
ple
& N
oise
≤
2mVr
ms
Trac
king
O
pera
tion
Trac
king
Err
or ≤
0.5
%+1
0mV
of M
aste
r (G
PD-3
303S
) ≤
0.5
%+5
0mV
of M
aste
r (G
PD-3
303D
)
Para
llel
Reg
ulat
ion
Line
: ≤ 0
.01%
+ 3
mV
Lo
ad: ≤
0.0
1% +
3m
V
(rat
ing
curr
ent ≤
3A
) Lo
ad: ≤
0.0
2% +
5m
V
(rat
ing
curr
ent
> 3A
)
Seri
es
Reg
ulat
ion
Line
: ≤ 0
.01%
+ 5
mV
Lo
ad: ≤
300
mV
M
eter
Res
olut
ion
GPD
-330
3D
Volta
ge: 1
00m
V
Cur
rent
: 10m
A
GPD
-330
3 Se
ries
Use
r M
anua
l
48
G
PD-3
303S
Vo
ltage
: 1m
V
Cur
rent
: 1m
A
A M
eter
G
PD-3
303D
3.
2A fu
ll sc
ale,
3 d
igits
0.5
" LE
D
disp
lay
G
PD-3
303S
3.
2A fu
ll sc
ale,
4 d
igits
0.4
" LE
D
disp
lay
V M
eter
G
PD-3
303D
32
V fu
ll sc
ale,
3 d
igits
0.5
" LE
D d
ispl
ay
G
PD-3
303S
32
V fu
ll sc
ale,
5 d
igits
0.4
" LE
D d
ispl
ay
Prog
ram
A
ccur
acy
GPD
-330
3D
± (0
.5%
of r
eadi
ng +
2di
gits
) ±
(0.5
% o
f rea
ding
+ 2
digi
ts)
G
PD-3
303S
±
(0.0
3% o
f rea
ding
+ 1
0mV
) ±
(0.3
% o
f rea
ding
+ 1
0mA
) R
eadb
ack
Acc
urac
y G
PD-3
303D
±
(0.5
% o
f rea
ding
+ 2
digi
ts)
± (0
.5%
of r
eadi
ng +
2di
gits
)
GPD
-330
3S
± (0
.03%
of r
eadi
ng +
10m
V)
± (0
.3%
of r
eadi
ng +
10m
A)
Insu
latio
n C
hass
is a
nd
Term
inal
20
MΩ
or
abov
e (D
C 5
00V
)
C
hass
is a
nd
AC
cor
d 30
MΩ
or
abov
e (D
C 5
00V
)
Ope
ratio
n En
viro
nmen
t In
door
use
, Alti
tude
: ≤ 2
000m
A
mbi
ent
tem
pera
ture
0 ~
40°
C
Rel
ativ
e hu
mid
ity ≤
80%
In
stal
latio
n ca
tego
ry: I
I, Po
llutio
n de
gree
: 2
Stor
age
Envi
ronm
ent
Am
bien
t te
mpe
ratu
re –
10 ~
70°
C
Rel
ativ
e hu
mid
ity ≤
70%
Po
wer
Sou
rce
AC
100
V/1
20V
/220
V/2
30V
±10
%, 5
0/60
Hz
Acc
esso
ries
U
ser
man
ual x
1 Te
st le
ad G
TL-1
04 x
2, G
TL-1
05 x
1
(Eur
ope)
Tes
t le
ad G
TL-2
03 x
1, G
TL-2
04 x
2
Dim
ensi
ons
210
(W)
x 13
0 (H
) x
265
(D)
mm
W
eigh
t A
ppro
x. 7
kg
48BOpt
ions
USB
cab
le
GTL
-246
U
SB 2
.0, A
-B t
ype
APP
END
IX
49
25BDec
lara
tion
of C
onfo
rmity
We
GO
OD
WIL
L IN
STR
UM
ENT
CO
., LT
D.
(1) N
o.7-
1, Jh
ongs
ing
Rd.,
Tuch
eng
City
, Tai
pei C
ount
y, T
aiw
an
(2) N
o. 6
9, L
u Sa
n Ro
ad, S
uzho
u C
ity (X
in Q
u), J
iang
su S
heng
, Chi
na
decl
are,
that
the
belo
w m
entio
ned
prod
uct
Type
of P
rodu
ct: P
ower
Sup
ply
Mod
el N
umbe
r: G
PD-3
303D
/GPD
-330
3S
are
here
with
con
firm
ed to
com
ply
with
the
requ
irem
ents
set o
ut in
the
Cou
ncil
Dir
ectiv
e on
the
App
roxi
mat
ion
of th
e La
w o
f Mem
ber S
tate
s re
latin
g to
Ele
ctro
mag
netic
Com
patib
ility
(200
4/10
8/EC
, 89/
336/
EEC
, 92
/31/
EEC
, 93/
68/E
EC) a
nd L
ow V
olta
ge D
irec
tive
(73/
23/E
EC,
93/6
8/EE
C).
For t
he e
valu
atio
n re
gard
ing
the
Elec
trom
agne
tic C
ompa
tibili
ty a
nd
Low
Vol
tage
Dir
ectiv
e, th
e fo
llow
ing
stan
dard
s wer
e ap
plie
d:
E
MC
EN
613
26-1
: 200
6 El
ectr
ical
equ
ipm
ent f
or m
easu
rem
ent,
cont
rol a
nd
labo
rato
ry u
se –
– EM
C re
quir
emen
ts
Con
duct
ed E
mis
sion
Ra
diat
ed E
mis
sion
C
lass
A
Elec
tros
tatic
Dis
char
ge
EN 6
1000
-4-2
: 199
5 +
A1:
1998
+
A2:
2001
EN
550
11: 1
998
+ A
1:19
99 +
A
2:20
02
Radi
ated
Imm
unity
EN
610
00-4
-3: 2
002
+ A
1:20
02
Cur
rent
Har
mon
ics
EN 6
1000
-3-2
: 200
0 +
A2:
2005
El
ectr
ical
Fas
t Tra
nsie
nts
EN 6
1000
-4-4
: 200
4 V
olta
ge F
luct
uatio
ns
EN 6
1000
-3-3
: 199
5 +
A1:
2001
Su
rge
Imm
unity
EN
610
00-4
-5: 1
995
+ A
1:20
01
------
------
------
------
- C
ondu
cted
Sus
cept
ibili
ty
EN 6
1000
-4-6
: 199
6 +
A1:
2001
---
------
------
------
----
Pow
er F
requ
ency
Mag
netic
Fie
ld
EN 6
1000
-4-8
: 199
3 +
A1:
2001
---
------
------
------
----
Vol
tage
Dip
/ In
terr
uptio
n EN
610
00-4
-11:
200
4
Saf
ety
Low
Vol
tage
Equ
ipm
ent D
irec
tive
73/2
3/EE
C, 9
3/68
/EEC
Sa
fety
Req
uire
men
ts
IEC
/EN
610
10-1
: 200
1
GPD
-330
3 Se
ries
Use
r M
anua
l
50 IN
DEX
auto
mat
ic o
ut o
ff...
......
......
...21
ba
nana
plu
g....
......
......
......
.....2
0 be
ep s
ettin
g co
nten
ts...
......
......
......
......
...21
m
anua
l....
......
......
......
......
...21
re
mot
e co
ntro
l.....
......
......
..42
caut
ion
sym
bol.
......
......
......
....5
cl
eani
ng th
e in
stru
men
t.....
....7
C
OM
set
ting,
rem
ote
cont
rol
......
......
......
......
......
......
......
..36
com
man
d lis
t....
......
......
......
..39
reca
lling
the
list..
......
......
...43
co
mm
on te
rmin
al, t
rack
ing
seri
es...
......
......
......
......
......
..27
cool
ing
fan
......
......
......
......
.....1
7 sa
fety
inst
ruct
ion
......
......
....6
C
V/C
C
CH
1/C
H2
indi
cato
r....
.....2
4 C
H3
indi
cato
r....
......
......
....2
6 op
erat
ion
theo
ry...
......
10, 1
8 EN
6101
0 de
clar
atio
n of
con
form
ity49
m
easu
rem
ent c
ateg
ory
......
6 po
llutio
n de
gree
......
......
.....7
EN
6132
6-1
......
......
......
......
.....4
9 en
viro
nmen
t op
erat
ion.
......
......
......
......
.....7
sp
ecifi
catio
n...
......
......
......
.48
stor
age.
......
......
......
......
......
...8
erro
r mes
sage
s, re
mot
e co
ntro
l....
......
......
......
....3
8, 4
4 fr
ont p
anel
lock
(man
ual).
......
......
......
.22
over
view
......
......
......
......
...14
fu
se
ratin
g...
......
......
......
......
......
46
repl
acin
g...
......
......
......
......
46
safe
ty in
stru
ctio
n...
......
......
6 G
PD s
erie
s bl
ock
diag
ram
......
......
......
.12
dyna
mic
load
......
......
......
..10
lin
eup.
......
......
......
......
......
..11
lis
t of f
eatu
res.
......
......
......
11
oper
atio
n th
eory
......
......
...12
te
chno
logy
ove
rvie
w...
......
9 gr
ound
sym
bol..
......
......
......
...5
iden
tific
atio
n in
form
atio
n...
43
load
con
nect
ion
......
......
......
..20
op
erat
ion
mod
e in
depe
nden
t.....
......
......
.....
23
rem
ote
cont
rol.
......
......
.....
41
spec
ifica
tions
......
......
......
..47
tr
acki
ng p
aral
lel.
......
......
..32
tr
acki
ng s
erie
s....
......
......
...27
ou
tput
cur
rent
set
ting
man
ual..
......
......
......
......
.....
24
rem
ote
cont
rol.
......
......
.....
40
outp
ut o
n/of
f FA
Q...
......
......
......
......
......
..45
m
anua
l.....
......
......
......
......
..21
re
mot
e....
......
......
......
......
....4
2 ou
tput
vol
tage
set
ting
man
ual..
......
......
......
......
.....
24
rem
ote
cont
rol.
......
......
.....
40
IND
EX
51
over
load
indi
cato
r....
......
......
26
pow
er s
uppl
y sa
fety
inst
ruct
ion
......
......
....6
se
tup
......
......
......
......
......
.....1
9 so
cket
ove
rvie
w...
......
......
.17
spec
ifica
tion.
......
......
......
....4
8 pr
otec
tive
grou
nd s
ymbo
l.....
5 re
ar p
anel
ove
rvie
w...
......
....1
7 re
call
setti
ngs
man
ual.
......
......
......
......
......
35
rem
ote
......
......
......
......
......
..43
rem
ote
cont
rol
com
man
d sy
ntax
......
......
..38
conn
ectio
n te
st...
......
......
...36
er
ror m
essa
ges.
......
......
.....3
8
inte
rfac
e....
......
......
......
......
.36
save
set
tings
m
anua
l.....
......
......
......
......
..34
re
mot
e....
......
......
......
......
....4
3 se
rvic
e op
erat
ion
abou
t dis
asse
mbl
y...
......
....6
co
ntac
t....
......
......
......
......
...45
st
atus
, ins
trum
ent.
......
......
...42
tr
acki
ng m
ode
oper
atio
n th
eory
......
......
.....
9 U
K p
ower
cor
d...
......
......
......
..8
USB
inte
rfac
e....
......
......
......
..36
w
arni
ng s
ymbo
l....
......
......
.....
5 w
ire,
load
......
......
......
......
......
20
