• Sharang Corporation

Diode Testing Machine

This machine is designed for testing the stripe packed diodes having 5 mm pitch for their leakage current at the rated PIV voltage. The machine comprises of a motorised bucket conveyor with 5 mm pitch and slip ring type arrangement for applying the voltage to the diode during its propulsion. The electronic controller is designed for generating the fixed regulated DC voltages – 100, 400 and 1000 V. The electronic controller has digital voltage and microamp indication. The controller has a precision leakage current detection arrangement where by a leakage current as low as 3 and 5 microamps is detected and conveyor is stopped as soon as diode under test draws a leakage current higher than 3 or 5 microamps. The buzzer sounds to indicate a faulty diode. The conveyor and controller are mounted on the same chassis. Features: supply – 230 V AC; motor – AC synchronous; testing speed – 3 diodes per sec; testing voltages (selectable) – 100/400/1000 V DC, leakage current selection 3 or 5