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A Solid Foundation for Reliable, Safe and Practical Safety Compliance Testing.
The GPT-9800 Series Electrical Safety Tester, with high durability and
multiple user-protection design, look to meet the test requirements of a
variety of safety standards, such as IEC, EN, UL, CSA, GB, JIS, and
other safety-related tests for the electronic products and components.
The GPT-9804 is a 4-in-1 model capable of performing AC withstanding, DC
withstanding, insulation resistance and ground bond tests.
Targeting user's protections, 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
condition each time when the tester is turned on; the Zero Crossing
Turn-On design imposes the output voltage to always begin 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 150µs) when
abnormal output voltages have been detected or when the upper or lower
current limits have been reached during testing. To protect operator
from hazardous injury, the GPT-9800 Series automatically discharges the
DUT after test (within 200ms) each time to eliminate excessive voltage
that remains on the DUT. To further ensure safety, the interlock key can
also be used as double protections to prevent inadvertent operation.
The GPT-9800 Series, equipped with a simple & clear panel layout, a
high resolution dot matrix LCD display, and color LED indicators, allows
operators to interpret measurement results easily and quickly. All
major test functions, including AC withstanding (AC 5kV/40mA), DC
withstanding (DC 6kV/10mA), insulation resistance (DC 50V ~ 1000V) and
ground bond (AC 30A max.) tests, are performed under a high-stability
voltage output with high-resolution measurement results. Further more,
the 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 of the GPT-9800 include: open circuit
detection for ground bond testing to get correct measurement result with
confidence; 100 sets of memory to save panel settings, which can be
recalled for 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 of the safety tester; RS-232C, USB and GPIB
(optional) interfaces available for PC remote control and test result
logging.
PWM Amplifier Design
Unlike conventional safety tester design that uses variable voltage
transformer and class A/B amplifier to provide test voltage, the
GPT-9800 Series, carrying a high-efficiency PWM amplifier design,
generates output source up to 98% efficiency. This greatly reduces the
amount of power loss to heat and therefore lowers the temperature within
the cabinet. The suppresion of temperature rise during heavy-duty.
Operations of the tester significantly increases its reliability and
service lifetime. In addition, as PWM amplifier is comparatively more
resistant to the fluctuations of input power voltage, a stable
high-voltage output with less than 1% regulation is provided by the
GPT-9800 Series to perform precision tests.
GW Instek GPT-9804
