Analogue Insulation / Continuity Tester

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The Model 3131A offers unmatched performance, and feature including test lead resistance zero adjustment for time-saving continuous operation, a clear ease to read illuminated scale, and a live circuit warning. • Test insulation up to 100MΩ at 250V, 200MΩ at 500V, 400MΩ at 1000V and continuity up to 20Ω. • LIVE circuit warning lamp plus audible warning. • Automatic discharge of circuit capacitance when TEST button is released. • Fuse protected (continuity range only). • Battery check LED. • Front panel zero adjust. • Back light function to facilitate working at dimly lit situations. • PRESS TO TEST button with lock down feature.

  Dust and drip proof construction. (designed to IEC 60529 IP54) • Designed to meet IEC 61010-1 and IEC 61557 safety standard. • 1mA rated test current at the minimum resistance. • 200mA measuring current on continuity testing. • Automatic discharge of circuit capacitance. (Any charge stored in the circuit under test will be automatically discharged after testing.) • Live circuit warning buzzer and neon lamp. • Small and lightweight. Shock resistant new case material. • AC voltmeter with linear, easy-to-read scale. • Operates on AA, R6P×6 dry batteries.