TOS9200/9201
Preface
P-5
■
F
all-time contr
ol function
F
or P
ASS judgement in
A
C withstanding v
oltage testing, the test v
oltage can be
decreased in increments.
The v
oltage f
all time can be set to 0.0 s through 99.9 s at a
resolution of 0.1 s and to 100 s through 200 s at a resolution of 0.1 s.
■
Disc
har
ge
function
Generally
, DUTs contain capaciti
v
e elements.
Therefore, DUTs remain char
ged
immediately after a DC withstanding v
oltage test or insulation resistance test has
been conducted, resulting in the danger of electric shock.
The
T
OS9200/T
OS9201
has a function for forcibly dischar
ging the DUT upon completion of DC withstand
-
ing v
oltage test or insulation resistance test.
■
Enhanced saf
ety
T
o enhance safety
, the
T
OS9200/T
OS9201 is equipped with a number of de
vices
and safety functions, including safe output terminals, a dischar
ge function, and an
analog v
oltmeter that constantly monitor the output-terminal v
oltages. Such safety
measures also include a danger lamp that constantly monitors output-terminal v
olt
-
ages e
v
en when no test is under w
ay and lights up when a v
oltage is detected, in
addition to an interlock function that cuts of
f output in coordination with an e
xternal
de
vice.
■
Impr
o
ved measurement accurac
y
The
T
OS9200/T
OS9201 is equipped with a digital v
oltmeter for withstanding v
olt
-
age testing with an accurac
y of ±(1 % of the r30
V), and another for insula
-
tion resistance testing with an accurac
y of ±(1 % of the r1
V).
The tw
o
v
oltmeters display measured v
alues not only during a test b
ut also during e
x
ecution
of a program.
The testers are equipped with an ammeter for withstanding v
oltage testing that fea
-
tures accurac
y of ±(1 % of the r20
μ
A). Kikusui’
s pre
vious testers had a
measurement resolution of approximately 1 mA and an accurac
y of approximately
±5 % of the upper current that w
as set to 100 mA. By comparison, the
T
OS9200/
T
OS9201 can operate with an accurac
y of ±(3 % of the r20
μ
A) at an upper
current of 100 mA.
The tw
o ammeters display measured v
alues not only during a
test b
ut also during e
x
ecution of a program.
■
Offset cancel function
In an
A
C withstanding v
oltage test that requires high sensiti
vity and high v
oltage,
current
fl
o
wing into the stray capacity of test leadwires and jigs tends to cause mea
-
surement errors.
The
T
OS9200/T
OS9201 features an of
fset cancel function that
cancels of
fset currents such as stray currents.
■
V
olta
ge
hold function
During judgement, this function allo
ws the tester to retain measured v
oltages
recorded upon completion of a test, while it is still outputting the judgement results.
Combined with the rise-time control function, the v
oltage hold function enables
detection of the dielectric breakdo
wn v
oltage.
Содержание TOS9200
Страница 22: ...P 10 Preface TOS9200 9201...
Страница 116: ...3 78 Basic Operations TOS9200 9201...
Страница 130: ...4 14 Using Terminals and Connectors TOS9200 9201...
Страница 148: ...7 4 Maintenance TOS9200 9201...
Страница 162: ...8 14 Specifications TOS9200 9201...
Страница 170: ...I 4 Index TOS9200 9201...
Страница 171: ......
