Surge Recorder SM-3A type

Surge Recorder SM-3A type
The peak and duration of the lightning surge current induced by the line are used as the cumulative energy calculation, and the thunder surge waveform of 10/200μs is taken as the benchmark.

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Product Details

Specification Parameters

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The peak and duration of the lightning surge current induced by the line are used as the cumulative energy calculation, and the thunder surge waveform of 10/200μs is taken as the benchmark,

and the input current value is divided into three stages for display. Long waveforms larger than 10/200μs and short wave forms are judged and counted.Composed of an external current transformer (CT)

and a plastic housing with an internal electronic counter, the current side uses lithium batteries with an internal electronic counter and requires little maintenance.

Item	Property
Detection method	Signal is measured by transformer (CT) current for calculation
Standard waveform	10/200μs
Detection current value	10A、30A、100A
Time resolution	above 50ms
Function	Press the TEST button to check the work of each counter. With reset function
Power source	Use lithium battery (5 years life)