GW Instek has launched a new series of safety testers with high durability and multiple user protection modes. The GPT-9800 series meets a variety of safety standards such as IEC, EN, UL, CSA, GB, JIS and others, for the safety tests of electronic products and components.
A total of four instruments – namely the GPT-9804, GPT-9803, GPT-9802 and GPT-9801 – are available for various applications. The GPT-9804 is a 4-in-1 model capable of performing AC withstand, DC withstand, insulation resistance and ground bond tests. The GPT-9803 is a 3-in-1 model capable of performing AC withstand, DC withstand as well as insulation resistance tests. The GPT-9802 is capable of performing both AC and DC withstand tests, whereas the GPT-9801 is able to perform AC withstand testing only.
The series is built upon a high-efficiency PWM amplifier platform with AC 200 VA maximum output capacity to prevent the influence of voltage fluctuation of the input AC source. This ensures a stable voltage supply for all tests.
Targeting user protection, the GPT-9800 series uses a combination of hardware and software controls to improve safety. A self-check is performed to make sure all the functions and operations are under normal conditions each time the tester is turned on; the zero crossing turn-on design ensures that the output voltage always begins at the zero crossing of a sine wave to avoid the impact of surge voltage output; and the output voltage is automatically cut off (within 150 μs) when abnormal output voltages have been detected or when the upper or lower current limits have been reached during testing.
To protect the operator from hazardous injury, the testers automatically discharge the DUT after test (within 200 ms) each time to eliminate excessive remnant voltage. An interlock key can also be used as extra protection to prevent inadvertent operation.
The GPT-9800 series is equipped with a simple and clear panel layout, a high-resolution dot matrix LCD display and colour LED indicators, allowing operators to easily interpret measurement results. All major test functions, including AC withstand (5 kV/40 mA), DC withstand (6 kV/10 mA), insulation resistance (50 V ~ 1000 V d.c.) and ground bond (30 A a.c. max.) tests, are performed under a high-stability voltage output with high-resolution measurement results. Test duration, ramp-up time and upper/lower limits of the output voltage are fully adjustable to accommodate a wide variety of safety tests with accurate measurement results.
Other functions and features include: open circuit detection for ground bond testing to get correct measurement results with confidence; 100 sets of memory to save panel settings, which can be recalled for a single test individually or for automatic tests in sequence; a remote output on-off terminal in the front panel and a signal I/O port in the rear panel provided as the means for remote start/stop control; RS232C, USB and GPIB (optional) interfaces available for PC remote control and test result logging.
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| www: | www.mantech.co.za |
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