GW-INSTEK GPT-9904
The GW-INSTEK GPT-9904 is a combined high-voltage tester for professional safety and quality control of electrical equipment. It combines four test functions in one unit: AC withstand, DC withstand, insulation resistance, and ground bond. In practice, this means that you can check insulation, dielectric strength, and grounding with the same instrument.
This makes the GPT-9904 relevant in environments where electrical products need to be systematically tested before delivery or in connection with production and service. AC and DC withstand are used to stress components and structures with high voltages. The insulation resistance function measures how well conductive parts are insulated. The ground bond function tests the grounding with high current and measures the low resistance in the connection.
The instrument covers a wide voltage range. For AC withstand, the test voltage can go from 0.050 kV to 5.000 kV AC, and for DC withstand from 0.050 kV to 6.000 kV DC. Insulation testing is performed with 50 V to 1000 V DC, while ground bond operates with 3.00 A to 32.00 A AC. This provides a single integrated platform for multiple types of safety tests, without the need to switch between several separate devices.
There are also functions that are practical in a busy testing process. The instrument features, among other things, a window comparator, arc detect, ramp-up, and timer function. This provides more controlled test procedures and makes it easier to repeat measurements consistently. On the rear panel, there are RS232, USB (Device) and signal I/O, and there is also a front-mounted remote terminal.
Typical Applications
The GPT-9904 is typically used in the testing of electrical products where there is a need to document safety and electrical robustness before commissioning, delivery, or release from production.
Specifications
- Manufacturer: GW-INSTEK
- MPN: GPT-9904
- 4-in-1 tester with AC withstanding, DC withstanding, insulation resistance, and ground bond
- AC withstand: 0.050 kV to 5.000 kV AC
- AC withstand maximum rated load: 500 VA
- AC withstand maximum rated current: 100 mA
- DC withstand: 0.050 kV to 6.000 kV DC
- DC withstand maximum rated load: 100 W
- DC withstand maximum rated current: 20 mA
- Insulation resistance test voltage: 50 V to 1000 V DC
- Insulation resistance measurement range: up to 50.00 GΩ
- Ground bond output current: 3.00 A to 32.00 A AC
- Ground bond resistance measurement range: 10 mΩ to 650.0 mΩ
- Interface: RS232, USB (Device), GPIB option
- Front remote terminal: Standard
- Signal I/O: Standard
- Display: 240 x 64 dot matrix LED back light LCD
- Dimensions: 330 x 148 x 587 mm
- Weight: approx. 27 kg
- Datasheet: See datasheet from the manufacturer
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