... 1993.Have three tariffs, may select 12 daily period of times. You can set the date arbitrary which can automatic read the ... LED instructions respectively power supply state, signal of energy impulse, the direction of the flow of load current, the tariff state just now ... for 1 minute, 1.2/50us waveformimpulse voltage 6kV*If you need different reference voltage or current specification, please advisory ...