Simultaneously cuts common-mode noise and low frequency!! Equipped with a simple noise level check function!!
- Simultaneously removes common-mode noise and low-frequency signals - Equipped with a simple noise level confirmation function - Voltage levels of each phase can be adjusted with a volume control - Overvoltage protection feature included - Notifies the timing for battery replacement with an LED turning off
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basic information
◎Overview This device is designed to eliminate common-mode noise generated during discharge measurements and similar activities. It uses pulse transformers and common-mode choke coils to remove common-mode noise, particularly around 1 MHz. The noise level can be checked using a standard DC tester. The noise level confirmation circuit operates on batteries to be usable in locations without power supply. It monitors the battery voltage, and when it drops to a low level, an LED turns off to indicate that the battery needs to be replaced. The noise removal circuit does not require a power supply. It includes a high-pass filter to cut low-frequency signals (60 Hz), voltage adjustment volumes for each phase, and overvoltage protection features. ◎Components ■ Aluminum case ■ Circuit board (noise removal function, noise level confirmation function, etc.) ■ Two 006P batteries
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Applications/Examples of results
Partial discharge measurement noise removal device For more details, please contact us.
Detailed information
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Device body / DC tester It can be combined with a general DC tester to check the noise level.
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Comparison of waveforms before and after noise removal Green: Common-mode noise waveform Yellow: Waveform after common-mode noise removal
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Company information
Since our establishment in 1965, we have been developing our own software, hardware, and peripherals, primarily focusing on microcomputers, utilizing new technologies and creativity to provide optimal system development for our customers. As a technology development company, we aim to respond to the increasingly sophisticated and diverse needs.