1.Product function:    Transformer Anti-interference Dielectric Loss Measurement or Laboratory Precision Dielectric Loss Measurement                2.Product characteristics:    The frequency conversion anti-jamming technology is adopted.Under 200% interference, it can still measure accurately and the test data is stable. It is suitable for anti-interference dielectric loss test in the field.    Using frequency floating, digital waveform analysis and Bridge self-calibration technology, combined with high-precision three-terminal standard capacitor, high-precision dielectric loss measurement is realized.    HaveMeasuring function of CVT self-excitation method.    Equipped with micro printer, computerRS232 interface    ETCR9720 series full-automatic frequency conversion dielectric loss tester is used for on-site anti-interference dielectric loss measurement of transformer or precise dielectric loss measurement in laboratory. The instrument has an integrated structure with built-in dielectric loss bridge, variable frequency power supply, test transformer and standard capacitor. Using frequency conversion anti-jamming and Fourier transform digital filter technology, automatic intelligent measurement, measurement data under strong interference is very stable. The measurement results are displayed by large LCD screen, and can be printed out by a self-contained micro printer, with RS232 computer interface and 100 sets of data storage.                3.Model Category:                   Model       Dielectric loss and capacitance range       Test current       Measuring function                 ETCR9720A       3~60kPF       10 mu A~5A       Positive Joint + Reverse Joint                                                       4.Technical specifications:                   Product model       ETCR9720A                        CVT self-excitation measurement       Nothing                        Input power supply       180V~270VAC, 50Hz/60Hz (+1%), municipal or generator power supply                 Capacitance range       Capacitance range: 3-60 kPF; Resolution: Maximum 0.001 pF Internal high pressure: 3pF~60000pF/10kV; 60pF~1.2uF/0.5kV External High Voltage: 3pF~1.5uF/10KV; 60pF~30uF/0.5KV                 Dielectric loss accuracy       Cx: (reading * 1%+1pF); TG delta: (+1%+0.