Meet IEC60335, UL60335, gb4706.1-2005, GB4943 and other domestic and foreign safety standards test, in line with jjg795-2004, jjg69-2003 safety measurement verification regulations requirements.Microcomputer control, menu guiding operation, leakage current upper limit setting, 4 sets of memory mode.
Main Technical Index
a. Range of Text Voltage: AC: 0-5KV regulating freely, +3% text precision.
b. Range of Leakage Current
VTG2670A :AC,0.1 ~ 2mA , 20mA±3％。It can be regulated freely. +3% text precision.
VTG2672A :AC,0.1 ~ 2mA , 20mA，100mA regulating freely, +3% text precision.
c. Range of text time: 0-99s setting freely, +1% text precision.
d. Capacity of output high voltage: VTG2670A 500VA，VTG2672A 750VA.
e. Output wave shape: 50HZ，sine wave
f. Working environment ：0 ~ 40℃ humidity.
h. Weight: VTG2670A:15Kg， VTG2672A:17.5Kg
i. Power supply：220V±10％ 50Hz±2Hz.
2 Working Principles
According to chart 1, AC 220 is regulated into high voltage through circuit controller, and then connected with the text object. After several minutes, current of leakage will exceed the setting value if insulation of the text object is abnormal. The circuit controller will cut off high output voltage and sound the alarm.