IMT100 industrial multi-tester
Combining three instruments in one, Megger’s unique handheld IMT100 multifunction tester qualifies solar PV (photovoltaic) installations. Installers and maintainers need only add a current clamp to their toolbox for complete IEC 62446-2 Category 1 coverage.
The instrument is exceptionally safe to use, with fast detecting circuits. It accurately tests low resistance, continuity and insulation resistance, measuring up to 200 GΩ with a resolution of 0.1 kΩ. Testing uses two-, three- and four-terminal methods.
Operation is intuitive with a clear full-colour graphic display. Simple go/no-go tests combine with extensive fault finding and reporting for certification and review.
The instrument meets IP54 and is rugged and reliable for rooftop operation. A carry case holds all the accessories for easy portability around large sites.
The IMT100 has rechargeable batteries and is user upgradeable via USB. It also meets the UN EEC R100 Regulation for Hybrid and Electric Vehicle testing.
A a warning message has appeared oin the screen - what does it mean?
Any warning conditions while using the IMT100 will appear on the display with an error code. Screen instructions will guide you through the troubleshooting process.
If the instrument does not behave as normal, and the warning messages do not disappear, this could be an indication that the instrument has a fault it needs to be repaired.
In depth details can be found in the instrument’s user guide, or via our technical support lines, however the below outlines the warning messages and their meanings:
- Test failure - Lost connection
Should the connection be lost during the test, the IMT100 will notify you. You can re-make the connection then restart the test after a few seconds by pressing the test button or by reconnecting to a test piece. - Failed export
If the export fails, the IMT100 will notify you. This may be because the receiving USB device is faulty, is disconnected, full, or in some other way fails.The IMT100 will return to its previous screen. - Fuse Failure
If a fuse fails, no measurements can be carried out. A message will appear each time you try to run a test. Close the message by pressing tick/check button and refer to the user guide
NOTE: A fuse failure warning could indicate a very low insulation resistance. Check the lead connection, and try again.
- Battery Low
The battery is too low to perform a test. Please charge the batteries or replace them to continue using safely the instrument. - Charging Fault
A generic charging fault warning screen.Turn the instrument off and disconnect the charger. Then reconnect and try again. - Battery not chargeable
The battery settings are not correct to allow battery charging.Check the correct battery type is in the instrument. Refer to the user guide for more information.Check the battery settings are NiHM. Refer to the user guide for more information. - Battery Charging Warning
Only NiHM battery cells are rechargeable.
Do not attempt to recharge alkaline or lithium cells, this action is a high potential fire hazard.When charging the IMT100 while the instrument is off, an animated battery will display across the screen to show charging is taking place. Once the battery is fully charged the screen will display a solid green battery. - Code 1000 or higher
Follow the instructions on the screen. The instructions will suggest rebooting the instrument and if the problem persists, contact Megger. - The screen displays a “Voltage Detected” warning during a test.
Even if you don’t expect it, a voltage can be present or can develop during a test. The instrument will inhibit a test when the voltage detected exceeds dangerous limits and will stop the test. This voltage threshold can be set as a lockout voltage. The lockout voltage is active on all test modes. It is hard-coded to activate at 20 V. The only exception is the insulation resistance tests, where the lockout voltage can be set as 20 V, 30 V, 50 V, or 75 V.
The instrument does not turn on, is not charging or taking a reading.
If the instrument does not behave as normal, and the warning messages do not disappear following the screen instructions, please contact our technical support lines or an authorised Megger service centre for evaluation and repair.
What makes this instrument different to the other offerings in the market?
The IMT100 is one of the more unique instruments in the market. Coming with a full colour graphic display, it features 13 testing functions, capable of testing resistance, continuity, and insulation resistance in systems,, combining the two, three and four- terminal methods,, meeting (and exceeding) the testing ranges and accuracy levels required by the industry. Additionally, it meets the IEC 62446 for PV testing and additional tests, the UN Regulation UN EEC R100 for Electric Vehicle testing, and the safety protection conditions required by the IEC61010 and EMC IEC61326. The instrument comes in a multi-purpose industrial carrying case with a full set of test leads, rechargeable batteries with a battery charger, and storage for up to 256 tests that can be downloaded to a USB drive.
Can I use it in a photovoltaic (PV) system?
Yes. The IMT100 can be used in photovoltaic installations to performs tests under the IEC62446 for PV testing and additional tests. It is ideal for installations with voltage systems equal and under 1000 V AC and DC. It solves a range of testing needs from domestic,, to industrial and utility scale installations.
What is the maximum test voltage I can use in an insulation resistance test?
Insulation resistance tests can be carried out at the following settings: 50 V, 250 V, 500 V, 1 kV, and it offers user- selectable variable voltage. The IMT100 is fitted with a guard terminal that conducts leakage currents away from the measured circuit to reduce errors.
What insulation test options can I perform?
IR: Insulation resistance. PI: Polarisation index at 1 minute to 10 minutes ratio. DAR: Dielectric absorption ratio at 15 or 30 seconds, to 60 second ratio. T(s): Time IR is selectable from 1 minute to 10 minutes, in 1-minute increments. 3P: Three-phase, to test insulation resistance phase- to- phase.
Can I use it to test electric vehicles?
Yes. This makes the IMT100 a unique instrument in the market as it meets the UN EEC R100 Regulation for Electric Vehicle testing. It also allows manufacturers, workshops, and service centres to test crucial components safely and reliably in electric vehicles (HEV, PHEV, BEV). It does this, using four-wire low resistance, two wire continuity bonding, and three- wire insulation resistance, in addition to testing voltages, temperatures, and recording test results
Can I use it in electrical installations?
Yes. The IMT100 can be used for testing and fault-finding on assets during installation, commissioning, start-up, and regular maintenance at domestic and industrial levels, as well as in production lines.It is ideal to use in CAT III 600 V environments up to 3000 m, and system voltages up to 1000 V AC and DC
Can I use it to test rotating machinery?
Yes. Rotating machinery is one of the most common loads found not only in photovoltaic installations, but also in production lines in the industry. The IMT100 offers the most common initial static analytic tests, like motor direction of rotation, continuity, low resistance, three phase insulation testing, temperature testing, and compensation.
How can i get technical support on this product ?
Information about Service / Repair / Calibration and Technical Support are available here
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