The Fluke 1550B Megohmmeter is a digital insulation tester capable of testing switchgear, motors, generators and cables at up to 5000 V DC. It can be used for a wide range of tests: from simple spot checks to timed tests and breakdown tests. Measurement storage and PC interface software make it ideal for preventive maintenance. Heavy-duty leads, probes and alligator clips fit in the custom carrying case, for a rugged field testing kit.
 
Key Features and Functions
Test voltages of 250V, 500 V, 1000 V, 2500 V, and 5000 V
Capable of testing in 50V increments between 250V and 1000V and 100V increments between 1000V and 5000V
Measures 0 to 1 Tera- ohms
Warning voltage function alerts the user that line voltage is present and gives the voltage reading up to 600 V AC or DC
Guard system eliminates the effect of surface leakage current on high-resistance measurements
Large digital/analog LCD shows detailed measurement data
Cable or insulation capacitance
Leakage current
Ramp function (0-5000 V DC) for breakdown testing
Timer 1 to 99 minutes
Polarization index and dielectric absorption calculated automatically
99 memory locations store all measurements parameters
Includes FlukeView Forms Basic Software and Optical Interface cable for easy download to a Windows® PC