Eft/ burst testers with a built-in coupling/ decoupling network for single phase or three-phase mains supply line and a hv terminal to connect a capacitive coupling clamp. Its performance fully complies with iec 61000-4-4 standard. Features 1) fully compliant with latest standards iec/ en 61000-4-4 2) user friendly 7 touch panel display 3) support multi-language & facilitate users 4) built-in environment self-test program 5) programmable operation 6) pre-programmed iec 61000-4-4 test settings 7) the highest pulse frequency is up to 1.2mhz 8) rs232 interface, pc control operation & printable test report 9) comfortable use and convenient operation Technical data 1) model: eft s6 2) output voltage: 0.1~ 6kv 3) frequency: 1kh~1.2mhz 10% , continuous adjustable 4) pulse polarity: positive/ negative/ alternating 5) running time: 1~9999s, continuous adjustable 6) internal resistance: 5010% 7) pulse front edge: 5ns 30% 8) pulse width: 50ns 30% (50 load), 35ns~150ns (1kî© load) 9) pulse number: 1~255, continuous adjustable 10) phase angle: 0~359 synchronous, asynchronous, or automatic 11) burst period: 0.15~99.99s, continuous adjustable 12) coupling/ decoupling network: built-in, single-phase three-wire, 16a (customer specific on demand) 13) power supply: ac 220v 10% 50/ 60hz 14) ambient temperature: 15~35