Darui Electric recommends：
Dielectric Loss TesterFor field anti-interference or lab precision D/L measurement.. The instrument has an integrated structure with built-in dielectric loss bridge, variable frequency power supply, test transformer and standard capacitor, etc. Uses frequency conversion anti-interference and Fourier transform digital filtering technology, fully automatic intelligent measurement, with very stable measurement data under strong interference. Measurement results displayed on a large LCD screen, with built-in micro printer for printout.
Dielectric Loss TesterFrequency Setting Methods: With the cursor on frequency, press the ↑↓ keys to select fixed frequency or variable frequency:
With cursor on fixed frequency: Press and hold the “Start/Stop” key for over 1s to switch to full frequency selection, press ↑↓ keys to cycle through 45Hz / 47.5Hz / 50Hz / 52.5Hz / 55Hz / 60Hz / 65Hz
Power frequency 50Hz measurement: This setting cannot resist interference. Select 50Hz for laboratory measurements or calibration. “45/47.5/55/52.5/60/65Hz”: Single frequency measurement, select when studying dielectric loss variation at different frequencies.
With cursor on variable frequency: Press and hold the “Start/Stop” key for over 1s to switch to full frequency selection, press ↑↓ keys to cycle through “5-Hz / 6-Hz / 4-Hz”:
“5-Hz”: 45/55Hz automatic frequency conversion, suitable for measurement under 50Hz power grid interference.
“6-Hz”: 55/65Hz automatic frequency conversion, suitable for measurement under 60Hz power grid interference.
“4-Hz”: 47.5/52.5Hz automatic frequency conversion, suitable for measurement under 50Hz power grid interference.
Note: The above information and technical parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.
