Megger MIT485/2 Telecoms Insulation & Continuity Tester
The Megger MIT485/2 Telecoms Insulation & Continuity Tester is designed for telecommunications and cable testing, combining insulation, continuity and voltage measurement in a compact handheld instrument. It provides fixed insulation test voltages of 50 V, 100 V, 250 V and 500 V, while a variable setting allows the user to select test voltages from 10 V to 500 V. Its insulation range extends to 100 GΩ at 500 V, giving users a broad measurement range for field testing.
Three terminals allow A, B and E test leads to remain connected while the required pair is selected through the instrument. Feedback-controlled insulation test voltage maintains accuracy within +2%, helping reduce the risk of damage from excessive test voltage. A digital display works with an analogue arc to show readings clearly, while automatic testing, pass/fail limit alarms and an insulation buzzer support quicker assessment during routine work.
The Megger MIT485/2 Telecoms Insulation & Continuity Tester also measures continuity, AC/DC voltage, frequency and capacitance. True RMS voltage measurement covers 10 mV to 600 V AC/DC, while continuity testing includes 200 mA and 20 mA test currents and lead resistance nulling up to 10 Ω. On-board storage holds more than 1,000 test results, and Bluetooth connectivity allows data download for recording and review.
Key Benefits
- Fixed and variable insulation test voltages support a wide range of telecoms and cable testing tasks.
- Feedback-controlled test voltage improves accuracy and helps prevent over-voltage during insulation testing.
- Three-terminal A, B and E connection reduces the need to swap leads between different measurements.
- Pass/fail limit alarms provide a clear indication for faster assessment of test results.
- Digital readings and an analogue arc give both precise values and a clear view of changing measurements.
- Lead resistance nulling up to 10 Ω improves continuity measurement accuracy when test leads add resistance.
- Automatic voltage detection prevents insulation testing when the measured voltage exceeds user-set limits.
- Storage for more than 1,000 results helps retain test records within the instrument.
- Bluetooth connectivity supports convenient transfer of recorded test data.
- IP54 protection and an over-moulded case support use in demanding field conditions.
Common Applications
Megger MIT485/2 Telecoms Insulation & Continuity Tester is suitable for a range of testing, maintenance and inspection tasks, including:
- Telecommunications insulation testing
- Cable insulation testing
- Continuity testing
- AC and DC voltage measurement
- Frequency measurement from 15 Hz to 400 Hz
- Capacitance measurement from 0.1 nF to 10 µF
- REN telephone count measurement
- Differential resistance measurement
- Lead resistance compensation during continuity tests
Why Choose This Model?
The MIT485/2 adds variable insulation test voltage from 10 V to 500 V, pass/fail limit alarms, Bluetooth with software support and recharge-ready operation compared with the MIT481/2. These functions make it well suited to users who need adjustable testing, result handling and additional field convenience.