Working on your own? Need some technical advice? Don’t know where to turn? The technical team at Megger answers the latest technical query from end users.
YOU ASK:
LOOP TESTING IS THE THING I LIKE LEAST WHEN I’M CERTIFYING ELECTRICAL INSTALLATIONS. IF I REPEAT A TEST, I OFTEN GET DIFFERENT RESULTS THE SECOND TIME AROUND, AND IF THE INSTALLATION INCLUDES CERTAIN TYPES OF RCD, I GET REALLY STRANGE RESULTS. CAN YOU HELP WITH THIS?
MEGGER SAYS:
What you need is our new MFT-X1 multifunction installation tester. It’s the only MFT on the market with True Loop three-wire non-trip loop testing technology and our patented Confidence Meter, both of which have been developed to solve just the sort of problems you’re having. These features mean you will always get accurate and repeatable results, even in electrically noisy environments. They also take care of the RCD uplift you’re seeing, where the internal impedance of some types of RCD leads to inaccurate measurements. And they do all of this, even on circuits protected by 6 mA and 10 mA devices. The Confidence Meter works with all the MFT-X1 loop test options – two-wire, three-wire and high resolution. As you’re performing a measurement, the Confidence Meter constantly checks its stability and provides you with a display that goes from red to amber to green as stability improves. When it gets to green, you can be sure the measurement is stable and correct. The MFT-X1 will cure your loop testing headaches – and you’ll also find it’s a great instrument for every other aspect of installation testing.
Visit the Megger MFT-X1 product information page here
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