Why?
Hipot test or also called a Dielectric Withstand, test verifies that the insulation of a product or component is sufficient to protect the operator from electrical shock. In a typical Hipot test, high voltage is applied between a product’s current carrying conductors and for instance its metallic chassis. Hipot equipment measure extremely low currents like from microamps to milliamps.
Ensuring Connectivity
For optimum quality process control the connectivity to the DUT has to be ensured. Quanti gives the user several options to check this. The user can select either automatic or manual mode connectivity check. The parameters can be adjusted in order to meet high quality control standards and optimum yield.
1, 2 and 4 channel simultaneous measurement possible arc detection
Arc detection
Arc is electrical spark occurred by voltage or current quickly changing. There should be no “sparking” in a Hipot test. Arc detection can help you to solve product quality issues.
Minimum test cycle 1,2 sec
Exceptional high speed (see the diagram) allows to build ultra high speed high volume production test lines. This diagram shows how fast the test cycle can be. With minimum test time of 1sec the overall test cycle time is 1.18sec only. And this for all channels.
Total and real current measurements
Real Current measurement allows operators to monitor total and real current on a single screen. When testing highly capacitive devices, it is often desirable to make a distinction between real and total current.
Total current is the vector sum of resistive and capacitive leakage current (see picture on the right). If the tester monitors only the total current, a substantial change in real current can often go undetected. The ability to separate the real and capacitive currents is an important requirement for AC Hipot testing. Nowadays some test requirements clearly specify the measurement of real rather than total current.
Intrinsicallly sage - floating output
A floating electrical circuit is created by separating grounds; one for the operator, one for the equipment. This method creates an intrinsically safe operator environment. (please see the picture on the right).
Dielectric withstand (HIPOT) function specifications
| Output voltage |
0.05 - 6kV AC/DC, Fully floating | ||||||||||||||||||||||||||||||||||||
| Output regulation |
Max ± (2% of output + 5V) from no load to full load over input voltage range |
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| Voltage setting |
Range: AC: 0.05 - 6000V, DC: 0.05 - 6000V Resolution: 5V Accuracy: ± (1% of reading +5V) |
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| Voltage measurement |
Range: 0.05 - 6000V Resolution: 1V Accuracy: ± (1% of reading +5V) |
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| Maximmum output current |
100mA AC/DC | ||||||||||||||||||||||||||||||||||||
| Max test apparent power |
600VA | ||||||||||||||||||||||||||||||||||||
| Measurements |
AC Total, AC Real, DC | ||||||||||||||||||||||||||||||||||||
| Current measurement resolution |
1mA: 0.1µA AC/DC 10mA: 1µA AC/DC 100mA: 10µA AC/DC |
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| Current accuracy |
AC Total: ± (0.5% of range + 5 counts) AC Real: ± (1% of range + 5 counts) DC: ± (0.5% of range, + 5 counts) |
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| Output frequency |
50 or 60 Hz, User selectable | ||||||||||||||||||||||||||||||||||||
| Test time |
AC: 0; 0.3 - 999.9sec (0 = continuous) DC: 0; 0.3 - 999.9sec (0 = continuous) |
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| Ramp time |
AC: 0.1 - 99.9sec; No Ramp DC: 0.1 - 99.9sec; No Ramp, τ << Ramp time |
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| Output waveform |
True Sine wave, THD < 1 % | ||||||||||||||||||||||||||||||||||||
| HI and LO limit |
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| Measurement circuit discharge time |
<0.2sec, see max. capacitive loads | ||||||||||||||||||||||||||||||||||||
| Maximum capacitive load in DC mode |
0.03µF ≤ 6kV 0.5µF ≤ 3kV 1µF ≤ 1kV |
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| Measurement safety |
Fully floating output¹ | ||||||||||||||||||||||||||||||||||||
| ARC detection |
Setting mode: Programmable setting Minimum pulse width: 5 - 100µ sec Detection current: Programmable 1 - 20mA |
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1) Except with some combination with other functions