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danger of electric shock..TH9310/20 has the enforced rapid discharge function after DC
withstanding voltage test and insulation resistance test finish.
■ Reinforced safety
In order to improve the safety, TH9310/20 series allocate many devices and safe functions including
safe output terminal, discharge function and ground wire current detection. The ground wire current
detection means in high voltage test circuit, when return current flowing through shell is larger than
0.45mA, the high voltage output will be cut off, thus there will be no shock current in high voltage to
protect the operator’s safety.
■ Higher test accuracy
TH9310/20 series is voltage digital display, in withstanding voltage test, the accuracy is ±
(1%reading +5V), in insulation resistance test, is ± (1% reading +2V). The digital display of test
current is ± (1% reading +5 digits) in withstanding voltage test.
■ Current correction function
AC withstanding test needs high sensitivity and voltage, the stray capacitance effects the accuracy of
current test.TH9310/20 series has the current correction function to eliminate the moving current.
■ Easy operation
TH9310/20 series are quite easy to be operated. In the setup interface, all the test parameters are
listed. Use direction keys to select a parameter from the LCD display and then use function button to
change the parameter. After setting the data, it will back to test interface to perform test.
■ 20 test programmes, and each one includes 20 test items, so it can save 400 test items
totally.
It can edit 20 test programmes which is corresponding to user’s different test items; each item
includes 20 test items and the test item is one of AC withstanding voltage test, DC withstanding
voltage, insulation resistance test as well as open and short judge. Each test condition is
noninteractive; in file operation interface, the storage file of the instrument can be transferred to the
computer or another congeneric instrument through external U-disk.
Instruction for options:
■ High voltage output terminal on the rear panel (Optional)
On the rear panel, there is an optional high voltage output which provides convenient schemes for
installing the wiring of the instrument on the machine cabinet.
WARNING：
The instrument applies 5kV AC/ 6kV DC high voltage, so do not touch the DUT and test line, or it will
cause the danger of electric shock.
The safe measures should be taken around DUT to assure the operator’s safety. Otherwise, please be
care about the outputted high voltage due to the incorrect connection and operation.
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