Megger insulation testers provide extra security
A
Megger product story
Edited by the Engineeringtalk editorial team
Oct 27, 2008
The MIT400 range of insulation testers from Megger have a Category IV 600V rating in line with IEC61010 and provide users with an extra level of safety.
Safe to use in all normal service and maintenance operations, even close to the source of supply where transient levels are highest, MIT400 testers feature a rugged construction that ensures long service even in demanding industrial environments.
The testers are sufficiently compact to allow one-handed operation.
All models incorporate a dual digital display and an analogue arc.
The main display shows the principal parameter being measured - for example, insulation resistance - in both digital format and as an analogue arc.
The smaller secondary display shows a related parameter - for example, insulation test voltage - as a digital value.
Users therefore save time by measuring two parameters with a single test.
MIT400 insulation testers also offer fast-response continuity testing and true RMS voltage measurement, providing accurate results even when the supply waveform is non-sinusoidal.
For industrial applications, Megger offers the MIT400 testers in four versions.
The entry level MIT400 provides insulation testing at 250V, 500V and 1,000V, together with continuity testing and voltage measurement.
The MIT410 adds 50V and 100V insulation tests, as well as fully automatic measurement of dielectric absorption (DAR) and polarisation index (PI), while the MIT420 provides all of the facilities of the MIT410 plus internal storage for test results.
Stored results can subsequently be recalled to the screen to allow easy recording.
At the top of the range is the versatile MIT430, which not only stores test results but also allows them to be transferred to a PC via a Bluetooth wireless connection.
This arrangement eliminates the need for data cables and guarantees total electrical isolation between the instrument and the PC to which the data is being transferred.
Special-purpose MIT400 models are also available for insulation testing at low voltages, for example, on sensitive IT systems, and for applications in telecommunications systems.
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