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)
May be the cabinet of aluminium alloy used for manufacturing later, people developed the push-pull cabinet.Push-pull cabinet did not stop the problem, because of push-pull cabinet casement opening and closing of stationary state basic same.
One disadvantage of push-pull cabinet is a must have at least one fixed fan, greatly reduce the cabinet area: the other is a fatal weakness could not meet the requirements of air tightness and water tightness.
Of push-pull cabinet casement fixed point is up and down two guide rail, so the wind pressure strength is limited.Modern building more and more high to the requirement of energy conservation and other functions, the sealing of the cabinet, sound insulation and heat insulation, air tightness and water tightness and wind resistance strength and security level, there are strict requirements.To meet the requirements of a variety of integrated and produced within the batter casement cabinets, or the Europe type cabinet.
The cabinet of modern glass curtain wall building model related to the cabinet frame on the wall of the fixed way.Because the glass curtain wall of air tightness, water tightness and wind resistance strength of the demand is higher, on the curtain wall cabinet accessories, according to the need to develop relatively independent.
Modern architecture of the cabinet is not confined to the level of manpower and starting from the requirements of ventilation heat removal, the height of the cabinet is an important factor decided to take a breath row of thermal efficiency, so people invented all kinds of cabinet.
Cabinet Hardware,Zinc Die Casting Cabinet Handle,Zinc Die Casting Cabinet Switch,Coated Cabinet Hardware
NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , http://www.blcastings.com