20Hz dielectric constant tester

20Hz dielectric constant testerInstrument Features

1. Highly automated, temperature rise, measurement of dielectric loss, and measurement of resistivity can be completed in one go;

2. The oil cup adopts a three electrode structure that complies with the national standard GB/T5564-2007, with a spacing of 2mm between electrodes, which can eliminate the influence of stray capacitance and leakage on the dielectric loss test results;

3. The instrument adopts medium frequency induction heating and PID temperature control algorithm. This heating method has the advantages of non-contact between the oil cup and the heating element, uniform heating, fast speed, and easy control, which strictly controls the temperature within the preset temperature error range.

4. Adopting advanced DSP and FFT technology to ensure data stability, accuracy, and reliability.

5. The internal standard capacitor is an SF6 gas filled three-point polar capacitor, whose dielectric loss and capacitance are not affected by environmental temperature, humidity, etc., ensuring the accuracy of the instrument even after long-term use.

6. Large screen color touch screen, Chinese operation menu, convenient conversation, simple and clear operation, easy to understand at a glance.

7. Equipped with warm reminders such as opening the lid to break high voltage, short circuit of high and low voltage electrodes in the oil cup, etc., to eliminate safety hazards and ensure the personal safety of operators and the normal operation of equipment.

8. Equipped with a real-time clock, the test date and time can be saved, displayed, and printed along with the test results; The device can display the ambient temperature and detect the experimental environment in real time.

9. Automatically store measurement data, capable of storing 100 sets of measurement data.

10. Empty electrode cup calibration function. Measure the capacitance and dielectric loss factor of the empty electrode cup to determine its cleaning and assembly condition. Calibration data is automatically saved for accurate calculation of relative permittivity and DC resistivity.

20Hz dielectric constant testerPerformance of ε and D:

Testing of ε and D changes in solid insulation materials at frequencies ranging from 20Hz to 2MHz.

Measurement range of ε and D: ε: 1-105, D: 0.1-0.00005,

Measurement accuracy of ε and D (10kHz): ε: ± 2%, D: ± 5% ± 0.0001.

Test parameters: C, L, R, Z, Y, X, B, G, D, Q, θ, DCR

Test frequency: 20 Hz~2MHz, 10mHz step

Test signal voltage: f ≤ 1MHz 10mV~5V, ± (10%+10mV)

平 : f>1MHz 10mV～1V,±（20%+10mV)

Output impedance: 10 Ω, 30 Ω, 50 Ω, 100 Ω

Basic accuracy; 0.1%

Display range:

L 0.0001 uH ～ 9.9999kH

C :0.0001 pF ～ 9.9999F

R,X,Z,DCR :0.0001 Ω ～ 99.999 MΩ

Y, B, G 0.0001 nS ～ 99.999 S

D :0.0001 ～ 9.9999

Q :0.0001 ～ 99999

θ :-179.99°～ 179.99°

Measurement speed; Fast: 200 times/s (f>30kHz), 100 times/s (f>1kHz)

Medium speed: 25 times/s, slow speed: 5 times/s

Calibration function: open/short circuit point frequency, sweep frequency reset, load calibration

Equivalent methods: series connection, parallel connection

Range mode: automatic, hold

Display mode: direct reading, Δ, Δ%

Trigger mode: internal, manual, external, bus

Internal DC bias: Voltage mode -5V~+5V, ± (10%+10mV), 1mV step

Source setting: Current mode (internal resistance of 50 Ω) -100mA~+100mA, ± (10%+0.2mA), 20uA step

Comparator function: 10 level sorting and counting function

monitor; 320 × 240 dot matrix graphic LCD display

Memory: capable of storing 20 sets of instrument settings

USB DEVICE( USBTMC and USBCDC support) USB HOST(FAT16 and FAT32 support)

Interface: LAN (LXI class C support) RS232C HANDLERGPIB (optional)

Working frequency range: 20Hz~2MHz digital synthesis,

Accuracy: ± 0.02%

Capacitance measurement range: 0.00001pF to 9.99999F six digit digital display

Basic error of capacitance measurement: ± 0.05%

Loss factor D value range: 0.00001 to 9.99999 six digit digital display

Dielectric constant testing device (including protective electrode): The precision dielectric constant testing device provides testing electrodes and can accurately measure samples with diameters ranging from 10 to 56mm and thicknesses less than 10mm.

It can be set up as three methods for different samples: contact electrode method, thin film electrode method, and non-contact method, to adapt to testing soft materials, uneven surfaces, and thin film samples.

Differential head resolution: 10 μ m

Maximum withstand voltage: ± 42Vp (AC+DC)

Cable length setting: 1m

Maximum operating frequency: 30MHz

High frequency dielectric sample (optional): In the current high-frequency dielectric material verification system, the measurement standard provided by the verification department for the high-frequency dielectric loss measuring instrument is the high-frequency standard dielectric sample. This sample is made of artificial sapphire, quartz glass, alumina ceramic, polytetrafluoroethylene, epoxy board and other materials with a diameter of 50mm and a thickness of 1-2mm for testing. Users can order as needed to ensure the repeatability and accuracy of the testing device.