The Fluke 1577 Insulation Multimeter combine a digital insulation tester with a full-featured, true RMS digital multimeter in a single, compact, handheld unit, which provides maximum versatility for both troubleshooting and preventative maintenance. Whether you work on motors, generators, cables, or switch gear, the Fluke 1577 Insulation Multimeter is ideally suited to help you with your tasks and at a cost that is far less than buying the two products. Features DC millivolts Resistance (0.1 Ω to 50 MΩ) Continuity Remote probe, test leads, alligator clips Rugged, utility hard case Auto power off to save battery power True RMS Large display with backlight Live circuit detection prevents insulation test if voltage > 30 V is detected for added user protection CAT III 1000V, CAT IV 600V measurement category Accepts optional Fluke TPAKTM magnetic hanging system to free your hands for other work Specifications Voltage DC Maximum voltage 1000 V Accuracy ±(0.2%+2) Maximum resolution 0.001 V Voltage AC Maximum voltage 1000 V Accuracy ±(2%+3) Maximum resolution 0.1 mV Current DC Maximum amps 400 mA Amps accuracy ±(1.0%+2) Maximum resolution 0.01 mA Current AC Maximum amps 400 mA Amps accuracy ±(2.0%+2)* Maximum resolution 0.01 mA Resistance Maximum resistance 50 MΩ Accuracy ±(1.2%+2) maximum resolution 0.1Ω Insulation Test Minimum test current @ 1kΩ/V 1 mA Test voltages 500, 1000 V Maximum resistance per test voltage 50 V 100 V 250 V 500 V 1000 V 600 MΩ Maximum resolution per test voltage 50 V 0.01 MΩ 100 V 0.01 MΩ 250 V 0.1 MΩ 500 V 0.1 MΩ 1000 V 0.1 MΩ Accuracy per test voltage 50 V ±(3% + 5) 100 V ±(3% + 5) 250 V ±(1.5% + 5) 500 V ±(2.0% + 5) 1000 V ±(2.0% + 5) Environmental Specifications Operating temperature –20°C to +55°C Storage temperature -40°C to +60°C Humidity (without condensation) 0% - 95% (10°C – 30°C)0% - 75% (30°C – 40°C)0% - 40% (40°C – 55°C) Operating altitude 2000 m Safety Specifications General IEC 61010-1: Pollution Degree 2 Measurement IEC 61010-2-033: CAT IV 600V / CAT III 1000V Mechanical and General Specifications Size 203 x 100 x 50 mm (with holster) Weight 624 g Warranty 3 years Battery life alkaline Meter use 1000 hours Insulation test use Meter can perform at least 1000 insulation tests with fresh alkaline batteries at room temperature. These are standard tests of 1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off. IP rating IP40
