The Instrument Panel is Shown in Figure

1. Usb port - used to export data stored in the instrument.

2. RS232 interface - used to connect computer, control instrument and upload data.

3. CX socket -- is the measurement input end of the test product signal. It is connected by a special low-voltage cable during the positive connection. This cable is single-layer shielded with a special crocodile clip, which is 8m long and connected to the low-voltage end of the test product. This end is empty when reverse wiring.

4. Color touch screen display -640*480 resolution, control and display menu and various prompt information and measurement results.

5. Printer -- print measurement data.

6. CN socket -- is the measurement input end of outer standard capacitive signal, which is empty when using inner standard.

7. Self-excitation current output terminal -- special terminal for measuring CVT, generally connected with auxiliary winding dn.

8. Self-excitation current output terminal -- special terminal for measuring CVT, generally connected with auxiliary winding da.

9. Power switch - power on and off.

10. High voltage switch - responsible for the starting and closing of high voltage power inside the instrument. Only when using external high pressure to close, the rest of the time should be in the open state.

11. Power socket -- AC 220V±10%, 50±1Hz power input port, with 5A fuse.

12. Grounding terminal -- the grounding terminal.

Technical Indicators

Accuracy：Cx: ±（readings×1%+1pF）

tgδ: ±（readings×1%+0.00040）

Anti-interference index: frequency conversion anti-interference, can still achieve the above accuracy under the interference of 200%.

Capacitance range：

Internal high voltage：3pF～60000pF/10kV 60pF～1.5μF/0.5kV

External high voltage： 3pF～1.5μF/10kV 60pF～30μF/0.5kV

Resolution: up to 0.001 pF, 4-bit significant digits

Tgδ range： no limi,The resolution is 0.001%. The capacitance, inductance and resistance can be identified automatically.

Test current range：10μA～5A

Internal high voltage：

Setting Voltage Range：0.5～10kV

Resolution: 1V Accuracy: ±(1.5%×reading+10V)

Maximum output current：200mA

Boost and drop voltage mode: the voltage is set at will. Such as 5123 v.

Test frequency: 40-70Hz single frequency can be set at will. For example, 48.7 Hz.

50± 0.1Hz to 50±10Hz automatic dual frequency conversion optional setting.

60± 0.1Hz to 60±10Hz automatic dual frequency conversion optional setting.

Frequency accuracy: ±0.01Hz

External high voltage: maximum test current 5A, power frequency or frequency conversion of 40-70Hz during positive connection

Maximum test current 10kV/5A, power frequency or frequency conversion 40-70Hz

CVT self-excitation method low voltage output: output voltage 3～50V, output current 3～30A

CVT ratio measurement:

Ratio accuracy: ±reading × 1% Ratio measurement range: 10～99999

Phase accuracy: ±0.1° Phase measurement range: 0～359.9°

Measurement time: about 40s, related to measurement method

Input power: 180V ~ 270VAC, 50Hz±1%, municipal or generator power supply

Computer interface: standard RS232 interface, U disk socket (automatic U disk storage data).

Printer: micro thermal printer