These new units offer exceptional versatility in a compact, rugged and light unit that weighs little more than half as much as its predecessors.
Small, light and sophisticated
PI, DAR, DD, SV and ramp test
Improved productivity – operate from line power/mains if battery dead
Li-ion battery - extended capacity, rapid charge
Advanced memory with time/date stamp
CATIV 600 V safety rating
The instruments also provide enhanced productivity – they can be used from an AC source even when their internal rechargeable battery is fully discharged – and they are capable of delivering dependable results even in noisy electrical environments, such as electricity substations, with noise levels up to 3 mA.
Three new testers
Megger's new IRTs are available in three versions.
The MIT515 5 kV insulation resistance testeris an entry-level 5 kV test set which offers insulation resistance (IR), timed insulation resistance (IR(t)), dielectric absorption ratio (DAR) and polarisation index (PI) test modes.
The MIT525 5 kV insulation resistance tester,which is also a 5 kV unit, adds facilities for dielectric discharge (DD), step voltage (SV) and ramp diagnostic testing, as well as a large-capacity internal memory for storing time and date stamped test results, which can subsequently recalled to the display or downloaded to a PC via the instrument's electrically isolated USB interface. Real-time output of results during tests is also supported.
The MIT1025 10 kV insulation resistance tester offers the same facilities as the MIT525, but is a 10 kV unit.
The MIT515 and MIT525 allow tests to be carried out at five pre-defined voltages from 250 V to 5 kV, while the MIT1025 provides pre-defined test voltages from 500 V to 10 kV. All models allow an additional user-defined ‘lock' voltage to be set, a specific voltage range to facilitate repetitive measurements to guard against excessive test voltages being applied to sensitive equipment.
Fast charge battery
Equally suitable for mains or battery operation, Megger's new IRTs incorporate a user-replaceable rechargeable li-ion battery, which is automatically recharged when the instrument is connected to a mains supply. Discharged batteries take less than 2.5 hours to fully recharge and, when fully charged, they provide up to 6 hours of testing at 5 kV and up to 4.5 hours at 10 kV.
Other key features common to all of Megger's new high-voltage IRTs include a large liquid crystal display with automatic backlight, a dedicated voltmeter function covering the range 30 V to 660 V, and a CAT IV 600 V safety rating in line with IEC 61010.
The instruments are supplied as standard with test leads and clips, and a user guide on CD-ROM. Additionally, for the MIT525 and MIT1025, a USB cable is provided together with a copy of the Megger PowerDB lite software package, which is a convenient and versatile tool for storing, analysing and reporting test results.
Megger offers a wide range of test and measurement instruments for use in the building wiring, electrical power and communications industries. Established originally in the late 1800’s the company has been manufacturing test and measurement instruments designed to perform preventive maintenance and troubleshooting for decades.
Our products provide testing solutions in the most critical maintenance areas including cable fault location, protective relay testing, and power quality testing, as well as being the supplier of choice for hand-held electrical test and measurement instruments for electrical installation, data and telecom engineers.
Over the years Megger has acquired several other major electrical test and measurement manufacturing companies both in the USA and UK. These companies now operate under the Megger name and include the well known brand names of Multiamp, Biddle, Foster, AVO and Metrosonics.
Megger’s commitment to the industry is reflected in its technical leadership and in being the first to design and introduce many key products to the marketplace. These include the first portable insulation tester, commercial cable fault locator, DSP based watthour meter test system, and software-driven protective relay test set.
Megger manufacturing plants are certified to the full operational requirements of ISO9001 and the manufacturing process strictly adheres to the highest standards for quality, reliability and safety.