Fluke | 1577 | Insulation Multimeter

The Fluke 1577 Insulation Multimeter combines a digital insulation tester with a full-featured True RMS digital multimeter, offering versatility for electrical troubleshooting and preventative maintenance tasks. This compact, handheld unit is designed for reliability and ease of use in various electrical systems.

Specifications

• Weight: 3.75 lbs
• Dimensions: 1 x 1 x 1 inches
• Insulation Test Voltages: 500 V, 1000 V
• Insulation Test Range: 0.1 M? to 600 M?
• DC Voltage: Maximum 1000 V, with an accuracy of ±(0.2%+2) and resolution of 0.001 V.
• AC Voltage (True RMS): Maximum 1000 V, with an accuracy of ±(2%+3) and resolution of 0.1 mV.
• DC Current: Maximum 400 mA, with an accuracy of ±(1.0%+2) and resolution of 0.01 mA.
• AC Current (True RMS): Maximum 400 mA, with an accuracy of ±(2.0%+2) and resolution of 0.01 mA.
• Resistance: Range from 0.1 ? to 50 M?.
• Safety Rating: CAT III 1000V, CAT IV 600V.
• Battery Life: Capable of performing at least 1000 insulation tests at 1000 V into 1 M? with a 5-second on, 25-second off duty cycle using fresh alkaline batteries.

Key Features

• Dual Functionality: Integrates a digital insulation tester with a True RMS digital multimeter for comprehensive electrical testing.
• Insulation Resistance Testing: Provides insulation test voltages of 500 V and 1000 V, along with a measurement range of 0.1 M? to 600 M?.
• Live Circuit Detection: Prevents insulation tests if voltage greater than 30 V is detected, enhancing user safety.
• Auto Discharge: Automatically discharges capacitive voltage for added user protection.
• True RMS Measurements: Ensures accurate readings for both linear and non-linear loads in AC voltage and current measurements.
• Wide Measurement Capabilities: Measures AC/DC voltage, DC millivolts, AC/DC milliamps, resistance, and continuity.
• Large Backlit Display: Offers clear visibility of readings in various lighting conditions.
• Rugged Design: Built for durability in demanding industrial environments.
• Auto Power Off: Conserves battery life.
• Included Accessories: Comes with a remote probe, test leads, alligator clips, and a hard case for convenience.

Applications

The Fluke 1577 Insulation Multimeter is an essential tool for professionals involved in:

• Motor and Generator Testing: Assessing the insulation integrity of windings in motors and generators to prevent failures.
• Cable Testing: Verifying insulation resistance in electrical cables to identify potential breakdown points.
• Switchgear Maintenance: Performing routine insulation checks on switchgear to ensure safe and reliable operation.
• Electrical System Troubleshooting: Diagnosing a wide range of electrical issues in commercial and industrial settings.
• Preventative Maintenance Programs: Implementing proactive testing to extend equipment lifespan and minimize downtime.
• Field Service: Its compact, handheld design makes it suitable for on-site diagnostics and repair.

Benefits

• Enhanced Safety: Features like live circuit detection and auto discharge of capacitive voltage protect users from electrical hazards during testing.
• Increased Efficiency: Combines insulation testing and multimeter functions into one device, streamlining workflows and reducing the need for multiple tools.
• Accurate Diagnostics: True RMS capabilities and precise measurements enable reliable identification of electrical issues, from insulation degradation to general circuit problems.
• Reliable Performance: Engineered by Fluke, this multimeter is built to be rugged and dependable in various demanding environments.
• Cost-Effective Solution: Provides the capabilities of two instruments in one, offering a practical alternative to purchasing separate insulation testers and multimeters.