Major parameter:
1) Insulation voltage DC500V; insulation impedance: 2/5/20/50/100/200MΩ six shelves
2) Interior voltage AC 0~500V adjustable continuously
3) Exterior AC 0~5KV/1mA adjustable continuously
4) Test time: insulation、interior and exterior high voltage may set randomly.
5) Wire sensitivity≥10pF
6) Air pressure ≤4Kgf/cm2
