Designed for use with electronic equipment or components, the TOS5052 withstanding voltage tester features a rise-time control that automatically increases test voltage to specified levels, as required by UL-type and IEC safety standards. The unit also features a high-capacity power supply with maximum output of 5 kV ac at 100 mA. Presettable output voltage, selectable output frequency (50/60 Hz), a digital voltmeter, and ammeter and timer functions are all standard features of the tester.For fast, accurate testing, the instrument provides dual-axis operation of the test voltage range selector switch and voltage setting knob, as well as separate up/down keys to determine current and timer settings.