■ Features
▲ The instrument adopts intermediate frequency induction heating and PID temperature control algorithm. This heating method has the advantages of non-contact between the oil cup and the heating body, uniform heating, fast speed, convenient control, etc., so that the temperature is strictly controlled within the preset temperature error range.
▲ The internal standard capacitor is an SF6 gas-filled three-point pole capacitor. The dielectric loss and capacitance of this capacitor are not affected by ambient temperature, humidity, etc., so that the accuracy of the instrument can still be guaranteed after long-term use.
▲ The AC test power supply adopts the AC-DC-AC conversion method, which effectively avoids the influence of mains voltage and frequency fluctuations on the accuracy of the dielectric loss test. Even if the generator generates power, the instrument can operate correctly.
▲ Perfect protection function. When there is overvoltage, overcurrent, or high voltage short circuit, the instrument can quickly cut off the high voltage and send out a warning message. When the temperature sensor fails or is not connected, a warning message is issued.
▲ There is a temperature limit relay in the intermediate frequency induction heating furnace. When the temperature exceeds 120 degrees, the relay is released and the heating stops.
▲ Calibration function of empty electrode cup. Measure the capacitance and dielectric loss factor of the empty electrode cup to judge the cleaning and assembly status of the empty electrode cup. The calibration data is automatically saved to facilitate accurate calculation of relative permittivity and DC resistivity.
▲ Optional automatic oil drain type dielectric loss.
■ Technical parameters
▲ Power supply voltage: AC 220V±10%
▲ Power frequency: 50Hz/60Hz ±1%
▲ Measuring range:
Electric capacity 5pF ~ 200pF
Relative permittivity 1.000 ~ 30.000
Dielectric loss factor 0.00001 ~ 100
▲ DC resistivity: 2.5 MΩm ~ 20 TΩm
▲ Measurement accuracy:
Capacity ±(1% reading +0.5pF)
Relative permittivity ±1% of reading
Dielectric loss factor ±(1% reading +0.0001)
DC resistivity ±10% of reading
▲ Resolution:
Electric capacity 0.01pF
Relative permittivity 0.001
Dielectric loss factor 0.00001
▲ Temperature measurement range: 0 ~ 120℃
▲ Temperature measurement error: ±0.5℃
▲ AC test voltage: 200 ~ 2200V continuously adjustable, frequency 50Hz
▲ DC test voltage: 0 ~ 500V continuously adjustable
▲ Power consumption: 100W
▲ Dimensions: 460mm× 370mm×330mm