Atec Kikusui-TOS9201 - Manual (Page 2)

5 Kikusui Electronics Corporation
Basic performance
Three functions - AC hipot testing, DC hipot testing and insulation
resistance testing
The TOS9200 can perform AC hipot tests and insulation
resistance tests, while the TOS9201 can also conduct DC
withstanding tests. Once connected to a device being tested, the
TOS9201 executes an AC hipot test, DC hipot test, and insulation
resistance testing in succession in one process.
AC hipot testing at 5 kV and 100 mA
Equipped with a high-effi ciency switching power supply in its high-
voltage power block, a PWM-based switching amplifi er and a 500
VA high-voltage transformer, the TOS9200/TOS9201 realizes
a maximum output of 5 kV/100 mA (continuous output for 30
minutes), or 2.5 times the output of Kikusui’s former models. At a
test voltage of 500 V or more and an upper current of 100 mA, or
greater the tester instantaneously satisfi es the requirements of a
short-circuit current of 200 mA or more which is required by the
IEC standard *. In addition, the tester ensures a load effects of
30% or less and the generation of a consistent 50 Hz/60 Hz test
voltage free from the affect of the supply voltage. These features
eliminate the need to readjust the output voltage once the test
voltage is preset.
*Continuous outputs are impossible because the output is cut off
if an overcurrent is detected.
DC hipot testing at 6 kV and a maximum output of 50 W
The TOS9201 permits DC hipot testing at up to 6 kV *. The tester
is equipped with a stable, low-ripple DC/DC converter with a load
factor of 1% or less.
*Maximum output of 50 W for up to 1 minute.
Insulation resistance testing at 25 V to 1000 V and 0.01 M Ω to 9.99 GΩ
The test voltage can be set to 25 V through 1000 V at a resolution
o f 1 V . I n s u l a t i o n
resistance covers a
w i d e m e a s u r e m e n t
range from 0.01 M Ω to
9.99 G Ω *.
A s i n g l e u n i t o f t h e
T O S 9 2 0 0 / 9 2 0 1 i s
capable of handling
all test voltages required by JIS C 1302 1994 (Insulation Resistor
Meter) and fully meets the JIS requirements.
*At a maximum rated current of 1 mA to 50 nA.
Enhanced measurement accuracy
The TOS9200/9201 is provided with a digital voltmeter for hipot
testing at an accuracy of ±(1% of reading + 30 V) and another one
for insulation resistance testing at an accuracy of ±(1% of reading
+ 1 V). Measured values are displayed not only during a test, but
while a program is being executed. A digital ammeter with an
accuracy of ±(3% of reading + 20 µA) is also provided for hipot
testing. Kikusui’s predecessors had the highest measurement
resolution of about 1 mA , with an accuracy of ±5% of the upper
cutoff current when it is set to 100 mA. In contrast, the digital
ammeter allows the TOS9200/9201 to make measurements at an
accuracy of ±(3% of reading + 20 µA), even if the upper current is
set to 100 mA. The ammeter displays measured values while the
program executes, as well as during an AC or DC hipot test.
Test voltage Resistance measurement range
25V 0.03 M Ω to 500 MΩ
50V 0.05 M Ω to 1.00 GΩ
100V 0.10 M Ω to 2.00 GΩ
125V 0.13 M Ω to 2.50 GΩ
250V 0.25 M Ω to 5.00 GΩ
500V 0.50 M Ω to 9.99 GΩ
1000V 1.00 M Ω to 9.99 GΩ
TOS9200 SERIES
Hipot Tester with Insulation Resistance Test
Type Display accuracy
Voltmeter for hipot testing ± (1% of reading + 30V)
Ammeter for hipot testing ± (3% of reading + 20µA)
Voltmeter for insulation resistance testing ± (1% of reading + 1V)
Insulation resistance meter ± (2% of reading)*
*At 1 µA< measured current ≤ 1 mA