Over-current protection: When the high-voltage output is short-circuited, the instrument should immediately cut off the output of the DC high-voltage generator . At the same time, the instrument should not be damaged (there is over-current protection, and there are Chinese alarm and voice prompts)
Over-voltage protection: When the high-voltage output exceeds the over-voltage setting value, the instrument should automatically cut off the output immediately, which guarantees that the test product will not be damaged due to over-voltage (over-voltage protection, menu-based setting, and there are Chinese alarm tips and sound prompt)
Zero protection: The potentiometer DC high voltage generator should be zeroed to boost the voltage and prevent the voltage of the high DC high voltage generator from being damaged. It will cause harm to people and equipment (zero protection, and there are Chinese alarm and voice prompts)
Grounding protection: When the instrument is not grounded or has bad grounding, the instrument should have a grounding alarm and corresponding prompts, and can not be boosted to prevent damage to the human body and the instrument caused by the DC high voltage generator (there is a grounding protection, and there is a Chinese alarm And voice prompts. Under special circumstances, when there is no reliable grounding test, you can press the 75% function key to release the protection, which is convenient for the user to test in the field.)
An internal voltage measuring open circuit protection: open DC high-voltage generator within the load path resistance, the voltage of the DC high voltage generator line circuit a measurement signal, terminal cable bad, if not protected, this case does not indicate the voltmeter equipment, high-pressure There is already voltage at the end, which may cause personal injury accidents (open loop protection with internal voltage measurement loop, and Chinese alarm and voice prompts)
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Anti-Covid19 Mask
EJ Industry Professional Valve Manufacture , https://www.ej-industry.com