Atec Kikusui-TOS9201 - Manual (Page 7)

10 Kikusui Electronics Corporation
TOS9200 SERIES
Hipot Tester with Insulation Resistance Test
Item TOS9200 TOS9201
Ammeter(*3)
Measurement range 0.00 mA to 110 mA AC 0.00 mA to 110 mA AC/0.00 mA to 11 mA DC
Display
Accuracy ±(3% of the reading + 20 μA) [after the offset cancel function is activated, if the scanner is mounted]
Response Mean-value responsive / root-mean-square value display (response time of 200 ms)
Hold function The measured current at the end of the test is held during the PASS judgment time period.
Offset cancel function The current fl owing to the insulation resistor between the output cables and the stray capacity is cancelled up to 100 μA/kV (in AC hipot testing only).
Calibration Performs calibration using the root-mean-square value of a sine wave with a pure resistive load
Selection of LOW/GUARD for the GND (*4) Selection permitted for current measurement between the mode for the GND point connected to the LOW terminal,and the mode using guard.
LOW Connects the GND point to the LOW terminal. Measures the current fl owing to the LOW terminal (chassis) (for normal operation).
GUARD
Sets the GND point as guard. Measures the current fl owing to the LOW terminal, but does not measure the current fl owing to the chassis
(for high-sensitivity, high-accuracy measurements).
Time
Setting range for the voltage rise time (RISE TIME) 0.1 s to 200 s
Setting range for the voltage fall time (FALL TIME) 0 s to 200 s (Valid only with PASS judgement) 0 s to 200 s (Valid only with PASS judgementin AC hipot testing)
Setting range for the test time (TEST TIME) 0.3 s to 999 s With the TIMER OFF function
Setting range for the judgement wait time (WAIT TIME) ———— 0.3 s to 10 s (Only for DC hipot testing)[RISE TIME + TEST TIME > WAIT TIME]
Accuracy ± (100 ppm + 20 ms)
Hipot test mode
Item TOS9200 TOS9201
Output section
AC
Output-voltage range 0.05 kV to 5.00 kV AC
Resolution 10 V
Accuracy ±(1.5% of setting + 20 V) [with no load]
Maximum rated load (*1) 500 VA (5 kV/100 mA)
Maximum rated current 100 mA [output voltage of 0.2 kV or more]
Transformer capacity 500 VA
Output-voltage waveform(*2) Sine wave
Distortion 2% or less [with no load or pure resistive load at output voltage of 0.5 kV or more applied]
Frequency 50 Hz/60 Hz
Accuracy ±0.1%
Voltage regulation ±3% or less [maximum rated load → no load]
Short-circuit current 200 mA or more, 350 mA or less [at output voltage of 0.5 kV or more]
Type of output PWM switching
DC
Output-voltage range ———— 0.05 kV to 6.00 kV DC
Resolution ———— 10 V
Accuracy ———— ±(1.5% of the setting + 20 V)
Maximum rated load (*1) ———— 50 W (5 kV/10 mA)
Maximum rated current ———— 10 mA
Ripple No load at 5 kV ———— 50 Vp-p Typ.
Maximum rated load ———— 150 Vp-p Typ.
Voltage regulation ———— 1% or less [maximum rated load → no load]
Short-circuit current ———— 40 mA Typ.
Discharge function ———— Forced discharge at the end of test(discharge resistance: 125 k Ω)
Start voltage The voltage at the start of the test can be set as the start voltage.
Setting range 0% to 99% of the test voltage (resolution of 1%)
Output-voltage monitoring function If the output voltage exceeds ±(10% of the setting + 50 V), output is cut off and the protection function activates.
Voltmeter
Analog
Scale 6 kV AC/DC F.S
Accuracy ±5% F.S
Indicator Mean-value responsive/root-mean-square value scale
Digital
Measurement range 0.0 kV to 6.00 kV AC/DC
Resolution 10 V
Accuracy ±(1.0% of the reading + 30 V)
Response Mean-value responsive/root-mean-square value display (response time of 200 ms)
HOLD function The voltage measured at the end of test is held during the PASS and FAIL judgment time period.
*1 Time limitation on output
The tester’s hipot generator is designed to radiate half as much heat as the rated output, in consideration of the size, weight, cost, and other factors of the tester. It is therefore necessary to use the tester within the
ranges specifi ed below. Operations deviating from these ranges may heat the output section excessively, thereby activating the protective circuit. In such a case, suspend the test and wait until the temperature falls
to the normal level.
[Output limitation in hipot testing (Output time = voltage rise time + test time + voltage fall time)]
Ambient temperature Upper current Pause Time Output time
t ≤ 40 ºC
AC
50< i ≤ 110 mA At least as long as the output time Maximum of 30 minutes
i ≤ 50 mA Not necessary Continuous output possible
DC
5< i ≤ 11 mA At least as long as the output time Maximum of 1 minute
i ≤ 5 mA At least as long as the judgement wait time (WAIT TIME) Continuous output possible
*2 Test-voltage waveform
When an AC test voltage is applied to a capacitive load, it is possible that the voltage becomes higher even than that when in the no load state. Furthermore, waveform distortion also may occur if the capacitance
of the load is voltage-dependent (such as of ceramics capacitors). When the test voltage is not higher than 1.5 kV and the capacitance is not larger than 1000 pF, such test voltage changes are only of negligible
levels. As the output type of the high-voltage generator block of the tester is PWM switching, switching noise and spike noise that the test voltage includes increase when the test voltage is 500 V or less. The lower
the test voltage is, the more the waveform distortion increases.
i = measured current
i < 1 mA 1 mA ≤ i < 10 mA 10 mA ≤ i < 100 mA 100 mA ≤ i
❑ ❑ ❑ μA ❑.❑ ❑ mA ❑ ❑.❑ mA ❑ ❑ ❑ mA