Testing Period Timing

Zero-Crossing Operation

Once the GPT-9800 Series is turned on, the protection functions to protect operator and DUT are always in operation throughout the testing period. When the power is turned on, the GPT-9800 Series immediately goes through the self-check procedures to ensure that all test functions are performed under normal conditions, as the first protection function being applied.The second protection function is activated once the “Start” (output) button is pressed. At the first moment of start up, the GPT-9800 will send a detection voltage (~100V) during the initialization period (100ms) to check whether the DUT has any short circuit due to poor insulation before the high voltage is applied.

This is to prevent high voltage or current from returning to the DUT during the test time. To protect DUT from insulation breakdown caused by the rapid increase of test voltage at power-onand avoid flashover or arcing phenomena that could affect the test results, the GPT-9800 Series has a Zero Crossing Turn-On feature, which ensures the output always starts from the zero crossing of a sine wave. Moreover, the adjustable voltage ramp-up time (0.1s ~ 999.9s) allows the test voltage to slowly rise to the set test voltage to reduce the risk of damaging DUT during mandatory production testing.

Furthermore, after the voltage has ramped to the set test voltage, the GPT-9800 will continue monitoring the voltage and cut off power output once any irregularity is detected. This provides both the safety tester and the operator with a high level protection, which allows the test to be done in a safe and accurate manner.

The GPT-9800 series also offers multiple protection designs to ensure operator safety in operating the safety tester. The interlock function provides the hardware key protection for voltage output. When the interlock function is activated, the testing voltage will present at the output ONLY when the dedicated interlock key is attachedto the Signal I/O port on the rear side. When the test is not intended to executed, removing the interlock key can inhibit the voltage output to prevent the hazard of high voltage output. Except connecting with the key, two inputs of the Signal I/O port can be connected alone to a senor switch installed in safety test system. If there is any unexpected object is detected to intrude into the system, the output is disabled and thus prevents the operator from exposure to hazardous voltages/currents.

In addition, the GPT-9800 series can quickly cut off the high voltage output within 150µs when the test has completed, the high/low limits have been reached or the emergent stop caused by an abnormal situation. Lastly, when a test has stopped, the unit also automatically discharges the voltage across the DUT (within 200ms) to reduce the risk of injury to operator.

The 240 x 64 LCD displays not only the setting parameters but also the test conditions, measurement values and DUT inspection results (PASS or FAIL) in a legible pattern. The LED indicators in different colors alert the operator to the status of the safety tester to avoid any possible risk. For example, the status indicator sitting above the high voltage output terminal will automatically blink when a high voltage presents at output. In addition, the function keys arranged below the LCD display provide convenient operation that test setup can be easily done by fewer key punches.

In addition to using the START/STOP buttons on the front panel to control the safety tester, the GPT-9800 series also provides a remote terminal for connection to an external remote controller and a signal I/O port on the rear panel for connection to a PLC interface for actuator control. Furthermore with RS-232C and USB as standard (GPIB optional) for all the models in the GPT-9800 series, retrieving test data and results is convenient via a PC connection.

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

200 VA (5kV/40mA)

Maximum Rated Current

40mA (0.5kV < V ≦ 5kV)

10mA (0.1kV ≦ V≦ 0.5kV)

Output-Voltage Waveform

Sine wave

Output-Voltage Frequency

50 Hz / 60 Hz selectable

Voltage regulation

± (1% of reading +5V) [full load → no load]

Voltmeter Accuracy

± (1% of reading+ 5V)

Current Measurement Range

0.001mA~040.0mA

Current Best Resolution

0.001mA / 0.01mA / 0.1mA

AC Current Measurement Accuracy

±(1.5% of reading +30 counts) when HISET < 1.00mA

±(1.5% of reading +3 counts) when HISET ≧ 1.00mA

Window Comparator Method

Yes

ARC Detect

Yes

RAMP (Ramp-Up Time)

0.1~999.9s

TIMER (Test Time)*

OFF, 0.5s~999.9s

GND

ON/OFF

DC WITHSTANDING

Output-Voltage Range

0.100kV~ 6.000kV dc

Output-Voltage Resolution

2V/step

Output-Voltage Accuracy

± (1% of setting +5V) [no load]

Maximum Rated Load

50W (5kV/10mA)

Maximum Rated Current

10mA (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~010.0mA

Current Best Resolution

0.001mA / 0.01mA / 0.1mA

DC Current Measurement Accuracy

±(1.5% of reading +30 counts) when HISET < 1.00mA

±(1.5% of reading +3 counts) when HISET ≧ 1.00mA

Window Comparator Method

Yes

ARC Detect

Yes

RAMP (Ramp-Up Time)

0.1~999.9s

TIMER (Test Time)*

OFF, 0.5s~999.9s

GND

ON/OFF

INSULATION RESISITANCE

Output-Voltage

50V~1000V dc

Output-Voltage Resolution

50V/step

Output-Voltage Accuracy

± (1% of setting +5V) [no load]

Resistance Measurement Range

1MW~ 9500MW

Test voltage

Measurable Range

Accuracy

50V≦V≦450V

1MW~ 50MW

51MW~ 2000MW

±(5% of reading +1 count)

±(10% of reading +1 counts)

500V≦V≦1000V

1MW~ 500MW

501MW~ 9500MW

±(5% of reading +1 count)

±(10% of reading +1 count)

Window Comparator Method

Yes

Output Impedance

600kW

RAMP (Ramp-Up Time)

0.1~999.9s

TIMER (Test Time)

1s~999.9s

GND

OFF (fixed)

GROUND BOND

Output-Current Range

03.00A~30.00A ac

Output-Current Resolution

0.01A

Output-Current Accuracy

3A≦I≦8A :± (1% of setting +0.2A)

8A<I≦30A :± (1% of setting +0.05A)

Test-Voltage

6Vac max. (open circuit)

Test-Voltage Frequency

50 Hz / 60 Hz selectable

Resistance Measurement Range

10mW~650.0mW

Resistance Measurement Resolution

0.1mW

Resistance Measurement Accuracy

± (1% of reading +2mW)

Window Comparator Method

Yes

TIMER (Test Time)

0.5s~999.9s

GND

OFF (fixed)

Test Method

Four Terminal

MEMORY

Single Step Memory

MANU : 100 blocks

Automatic Testing Memory

AUTO : 100 blocks, menu per auto : 16

INTERFACE

RS232

Standard

USB (Device)

Standard

GPIB

Option

Remote Terminal (Front)

Standard

SIGNAL IO

Standard

General

DISPLY

240 x 64 dot matrix LED back light LCD

POWER SOURCE

AC100V/120V/220V/230V ±10%, 50/60Hz

POWER CONSUMPTION

500VA max.

DIMENSIONS & WEIGHT

330(W) x 148(H) x 452(D) mm (Max.),

approx.19kg(Max)