GW Instek GPT9904 Withstanding Voltage/ Insulation Resistance Murah
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Last Updated
08 Feb 2020
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Specification of GW Instek GPT9904 Withstanding Voltage/ Insulation Resistance Murah


500VA AC Test Capacity
240x64 Ice Blue Dot matrix LCD
Sweep Function for DUT characteristic analysis
Insulation resistance measurement up to 50GΩ
Manual/Auto Mode
Function Key for quick selection
High intensity flash for caution & Status indication
Safety INTERLOCK function
Zero Crossing Turn-on Operation
Controllable Ramp-up Time
True RMS Current Measurement
High resolution: 1uA for measuring current, 2V for setting voltage
PWM amplifier to enhance the power efficiency and reliable testing
Max. 100 memory block for test condition (step) setting. And each step can be named individually.
Remote terminal on the front panel for “start” and “stop” control
Rear panel output available
Interface : RS-232C, USB device, Signal I/O and GPIB (optional)

The Instek GPT-9904 AC 500VA AC/DC  Withstanding Voltage/ Insulation Resistance Tester supports the major test items among all the needed for the compliance of the safety standards such as IEC, EN, UL, CSA, GB, JIS and other safety regulations.

The GPT-9904 AC 500VA AC/DC  Withstanding Voltage/ Insulation Resistance Tester is built upon a platform of AC 500VA maximum power output. The GPT-9904 is a 4-in-1 model capable of performing AC withstanding, DC withstanding, insulation resistance and ground bond tests. The AC 500VA AC/DC  Withstanding Voltage/ Insulation Resistance Tester follows every good feature and advantage of the GPT-9800 series. The high-efficiency PWM amplifier is the core of GPT-9904 platform design to impede the influence from the voltage fluctuation of input AC source. The output voltage is automatically cut off (within 150μs) upon the detection of an abnormal output voltage or a trip of current limits during test to protect the operator from hazardous injury. The GPT-9904 automatically discharges the DUT after each test to eliminate excessive voltage that remains on the DUT.

Following a tidy and easy-to-use design concept, the GPT-9904 is equipped with a simple & clear panel layout, a high resolution dot matrix LCD display, and color LED indicators, allowing operators to interpret measurement results easily and quickly. In the role as the complement of 200VA safety testers, the GPT-9900 series is designed upon a 500VA output platform to enhance all major test functions, including AC withstanding (AC 5kV/100mA), DC withstanding (DC 6kV/20mA), insulation resistance (DC 50V ~ 1000V/50GΩ max.) and ground bond (AC 32A max./650mΩ max.) tests, with high-power measurement capabilities. 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. The “Sweep” function of the GPT-9904 AC 500VA AC/DC  Withstanding Voltage/ Insulation Resistance Tester is able to display the test results point by point all through the testing period to form a trace graph. This graphic display performs the characteristic verification of a DUT through observing the parameter response to the changes of the applied voltage or current or testing time. On the graph a movable marker is available to get the parameter reading on the specific point of user’s interest.

AC Withstanding
Output-Voltage Range : 0.100kV~ 5.000kV ac
Output-Voltage Resolution : 2V/step
Output-Voltage Accuracy : ± (1% of setting + 5V) [no load]
Maximum Rated Load: 100W (5kV/20mA)
Maximum Rated Current: 20mA (0.5kV< V ≤ 6kV); 2mA (0.1kV≤ V ≤0.5kV)
Voltage Regulation:  ± (1% of reading + 5V) [full load → no load]
Voltmeter Accuracy: ± (1% of reading + 5V)
Current Measurement Range: 0.001mA~20.0mA
Current Best Resolution : 0.001mA / 0.01mA /0.1mA

Insulation Resistance
Output-Voltage :  5V~ 1000V dc
Output-Voltage Resolution: 50V/step
Output-Voltage Accuracy :  ± (1% of setting + 5V) [no load]
Resistance Measurement Range: 0.001GΩ~ 50.00GΩ
Test Voltage & Measurement Accuracy : 50V≤V≤450V: 0.001~0.050GΩ:±(5% of reading + 1 count); 0.051~2.000GΩ:±(10% of reading + 1 count). 500V≤V≤1000V: 0.001~0.500GΩ:±(5% of reading + 1 count); 0.501~9.999GΩ:±(10% of reading + 1 count); 10.00~50.00GΩ:±(15% of reading + 1 count)

Ground Bond
Output-Current:  03.00A~32.00A ac
Output-Current Resolution: .01A
Output-Current Accuracy: 3A≤I≤8A:±(1% of reading + 0.2A); 8A≤I≤32A:±(1% of reading + 0.05A)
Test-Voltage: 6Vac max (open circuit)
Test-Voltage Frequency: 50Hz/60Hz selectable
Resistance Measurement Range : 10.0mΩ~ 650.0mΩ
Resistance Measurement Resolution: 0.1mΩ
Resistance Measurement Accuracy : ±(1% of reading + 2 mΩ)

ingle Step Memory: MANU:100 blocks
Automatic Testing Memory : AUTO:100 blocks, manu per auto:16

Display: 240 x 64 Ice Blue Dot matrix LCD
Power Source : AC 100V/120V/220V/230V ± 10%, 50/60Hz.

Quick Start Guide
CD (completed user manual)
Power cord
Interlock key
Remote terminal male plug
Test lead GHT-114

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