The dielectric constant tester is designed for testing materials such as insulating materials, PCB substrates, films, ceramics, and liquid media. It measures parameters including relative permittivity and dielectric loss tangent.

**Performance Features**

1. Supports measurements using external voltage and an external standard capacitor (CN).

2. Features multi-channel simultaneous measurement capabilities, allowing for the simultaneous testing of dielectric loss values for up to four samples.

3. Includes dielectric constant testing functionality.

4. Utilizes variable-frequency technology to eliminate 50Hz power frequency interference, ensuring reliable data acquisition even in environments with strong electromagnetic interference.

5. Equipped with over-current protection to prevent instrument damage in the event of a sample short-circuit or dielectric breakdown.

6. Features grounding protection; the instrument will not operate if the grounding connection is poor or missing.

7. Supports testing powered by a generator, eliminating reliance on the mains power grid.

8. Includes an internal standard capacitor and high-voltage power supply, facilitating on-site testing and reducing the need for complex field wiring.

9. Features a large LCD screen and simple operation, with Chinese-language menus guiding the user through the testing process.

10. Displays corresponding wiring diagrams for each function interface, greatly simplifying the wiring process for the operator.

11. Supports switching between Chinese and English interfaces.

 Technical Specifications

1 Operating Conditions: 15°C–40°C; RH < 80%

2 Interference Rejection Principle: Variable frequency method

3 Power Supply: AC 220V ±10% (generator compatible)

4 High Voltage Output:

① 10.5kV–10kV, in 0.1kV increments

② Accuracy: 2%

③ Max. Current: 200mA

④ Capacity: 2000VA

5 Self-Excitation Power Supply:

① AC 0V–50V/40A

② Single frequency: 50Hz/60Hz

③ Adjustable dual frequency: 45.0Hz/55.0Hz, 47.5Hz/52.5Hz

④ 55.0Hz/65.0Hz, 57.5Hz/62.5Hz

6 Resolution: tgδ: 0.001%; Cx: 0.001pF

7 Accuracy: Δtgδ: ±(reading × 1.0% + 0.040%); ΔCx: ±(reading × 1.0% + 1.00pF)

8 Measurement Range:

① tgδ: Unlimited

② Cx: 15pF < Cx < 300nF

③ 10kV: Cx=(Cx1+Cx2+Cx3+Cx4) < 60nF

④ 5kV: Cx=(Cx1+Cx2+Cx3+Cx4) < 150nF

⑤ 1kV: Cx=(Cx1+Cx2+Cx3+Cx4) < 300nF

9 Dimensions:

① (Main Unit) (mm): 395 × 320 × 335

② (Accessories) (mm): 455cm × 350cm × 150cm

10 Memory capacity: 200 sets; supports USB flash drive data storage

11 Weight (main unit): 23.8 kg; Weight (accessory case): 6.8 kg