Megger MIT481/2 Insulation Tester

Description

The Megger MIT481/2 is a handheld insulation and continuity tester specifically designed for the telecommunications and cable testing industries. It features an ergonomic, rugged, over-molded case with an IP54 weatherproof rating. The tester combines modern digital displays with a traditional analog arc for a comprehensive view of results. 

Key features

• Rugged, over-molded casing: This rubber housing provides shock absorption and excellent grip, making the unit almost indestructible and suitable for tough field conditions.
  
• IP54 weatherproof rating: The sealed casing, including the battery and fuse compartments, protects the unit from water and dust ingress.
  
• Integrated back-stand: A built-in back-stand allows the user to prop up the tester for hands-free viewing.
• Dual digital and analog display: The tester features a large digital display for precise readings and a separate analog arc, which mimics the behavior of a traditional moving-coil meter for quick visual interpretation.
• Intuitive controls: All primary test functions are easily selected using a rotary knob, with additional push-buttons for other settings located below the display.
• Three-terminal connection: This special feature allows for three test leads (for Tip, Ring, and Earth) to be connected simultaneously, which is highly convenient for telecom applications. The desired measurement pair can be selected with a button press, eliminating the need to constantly switch leads.
• Live circuit detection: The tester automatically detects a live circuit and inhibits insulation testing to protect both the user and the instrument.
• Gated 500V access: The high-voltage 500V test mode is restricted by a "gate" to prevent accidental selection and potential damage to sensitive equipment.
• CAT IV 600V safety rating: This rating confirms the instrument is safe for use on electrical installations at the origin of the supply.
• Fast continuity testing: The unit provides a single, fast continuity test range from 0.01Ω to 1MΩ, with the ability to null lead resistance for increased accuracy.
• On-board memory: For the MIT481/2 specifically, results can be stored and recalled on the instrument, allowing for easy review of previous tests.
• Multiple test voltages: Offers a range of insulation test voltages (50V, 100V, 250V, and 500V) to suit different testing needs.