This part of IEC 61083 is applicable to digital recorders, including digital oscilloscopes, used for measurements during tests with high impulse v oltages and high impulse currents. It specifies the measuring characteristics and calibrations required to meet the measuring uncertainties and procedures specified in IEC 60060-2 and IEC 62475. This part • defines the term s specifically related to digital recorders; • specifies the necessary requirements for such instrum ents to ensure their compliance with the requirem ents for high-v oltage and high-current impulse tests; • establishes the tests and procedures necessary to dem onstrate their compliance; • cov ers digital recorders that permit access to raw data from permanent or temporary storage. • cov ers peak m eters used for m easuring the extreme v alue of lightning impulses, the peak v alue of switching or current im pulses.