GPT-9900 series is a safety tester with high stability testing, safety considerations and a new look to meet the requirements of safety regulations such as IEC, EN, UL, CSA, GB, JIS and other safety regulations for testing various electronic/electrical products or components.

GPT-9900 series safety testers have 2 models: GPT-9904 is a 4-in-1 model with AC/DC withstand voltage test, insulation resistance test and AC ground impedance test, GPT-9903/9903A provides AC/DC withstand voltage test and insulation resistance test, GPT-9902A provides AC/DC withstand voltage test test, GPT-9901A provides AC withstand voltage test, GPT-9901A provides AC withstand voltage test, GPT-9901A provides AC withstand voltage test, GPT-9901A provides AC withstand voltage test. GPT-9902A provides AC/DC withstand voltage test function, GPT-9901A provides AC withstand voltage test function. All series models provide AC 500VA output capacity and use high efficiency PWM amplifier to effectively avoid the influence of input power supply voltage variation or waveform distortion, in order to ensure that the AC withstand voltage test provides stable high voltage output for the object to be tested.

For safety considerations, the GPT-9900 series uses software/hardware control to provide such features as power-on self-test, zero-point startup, detection of abnormal output voltages during testing, the ability to quickly cut off output voltages when the set upper/lower limits are exceeded (150μs), and even provides the ability to plug in a special interlocking terminal in order to allow normal output of the safety tester. In addition, after the completion of each test, the tester is equipped with the following features In addition, each test is automatically discharged after completion of the test to avoid the presence of excessive test voltage on the object to be tested, which may cause injury to the user.

In terms of operation, observation and measurement performance, the GPT-9900 series provides scanning function, using software to scan the function of the direct structure of the machine; when the user in the completion of the functional test, you can enter the scanning mode to watch the test results of the analysis of the curve, and you can select any point in time during the test process to analyze the relationship between the voltage and the current (select the ACW or DCW function), and even by setting the start time to scan the results of a specific period of time to analyze the relationship between the local voltage and the current. You can even set the start time and scan the test results of a specific period of time to analyze the relationship between local voltage and current. Meanwhile, the GPT-9900 series is designed with simple buttons and a highly visible dot-matrix blue LCD display, as well as different colors of high-brightness LEDs as status indicators, making the entire operation setup and measurement viewing easier and more readable. In addition, in providing the main functions required for testing, AC withstand voltage (AC 5kV/100mA), DC withstand voltage (DC 6kV/20mA), insulation resistance (DC 50V~1000V/50GΩ), and ground impedance test (AC 32A max./650mΩ), and with the output adjusting resolution, measurement resolution, voltage creepage time settings, upper/lower limit judgment settings. /lower limit judgment setting.... etc., allowing users to perform the required tests and obtain accurate measurement results.

Other functions and features of the GPT-9900 series include: rear panel output function for easy integration into the system, wire break detection function (for ground impedance testing only) to avoid misjudgment of measurement results caused by broken wires, 100 memory groups for storing different test conditions, multiple memory groups combined for automatic continuous testing, front panel remote terminal block/rear panel Signal I/O, and more convenient and tailored ways to control the output/abort of safety testers. The front panel remote control terminal block/rear panel Signal I/O provides customers with a more convenient way to control the output/abort of the safety tester in a way that meets their needs. Even for users who need computerized control and recording of test results, RS-232C, USB and GPIB (optional) interfaces are available.

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