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The Extech 380363 Digital Insulation Tester / Megohmmeter provides three test ranges plus continuity and AC/DC voltage measurement. Manual datalogging stores up to 9 data sets. Specifications. Test ranges Resistance: 4 M-ohm, 40 M-ohm, 400 M-ohm, 4000 M-ohm, 10 G-ohm. Test ranges Test Voltages: 250 V, 500 V, 1000 V. Analog Bar Graph: 0 to 10 G-ohm. Circuit Protection: Test inhibited if input >=30V AC or DC. AC Voltage range (40 Hz - 500 Hz): 999 V, ±2% + 2d (Accuracy). DC Voltage range: 999 V, ±1% + 2d (Accuracy). Resistance range: 9999 ohm, ±1% + 3d (Accuracy). Lo Resistance range: 40 ohm. Over range indicator: ‘OL’ displayed when measurement exceeds range. Zero adjust: Automatic. Memory: Nine (9) data records. Sampling rate: 1 reading per second. Display: 3-3/4 digit (4000 count) LCD.
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