Tonghui TH9310 Series - 3.4 Description

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With this multi-channel module, rapid connection can be achieved through test fixture without changing
ports during the testing process.
The test connection diagram is as follows:
3.4 Description
TH9320: Provide 5kV AC/20mA withstanding voltage, 6kV DC/10mA withstanding voltage and
insulation resistance test.
TH9310: Provide 5kV AC/10mA withstanding voltage, 6kV DC/5mA withstanding voltage and
insulation resistance test.
TH9310B: Provide 5kV AC/10mA withstanding voltage test.
The principle structure of the instrument: In high voltage module, there is a DA standard,
controllable forcing function generator, AB power amplifier, 40~600Hz high voltage boost transformer
and output voltage closed-loop control.
DA standard: ensure controllable output voltage amplitude.
Controllable forcing function generator: In AC output, set the operation in 50 or 60Hz，not being
limited by line voltage.
Linear power amplifier: low distortion of the voltage waveform with easy control and high
reliability.
40~600Hz high voltage boost transformer: to DC and insulation resistance test, the test instrument
uses 600Hz AC to form DC voltage to be the power, which can assure the DC power ripple is far less
than the formal withstanding voltage tester.
Output voltage closed-loop control: ensure small load regulation and reliable test data.
Software of the instrument: multiparameter continuous test and multiple upper computer control
function.
TH9310/20 series not only can perform the independent AC withstanding test, DC withstanding
voltage test, insulation resistance test, but also multi-item test via the setting of test programme.
TH9310/20 series all allocate HANDLER, RS-232C and USB, thus the instrument can adapt to
the auto test system of different required safety and reliability.