Plug 'n' play

Automatic RCD testing is a key feature of Megger’s new MFT1552 multifunction tester, the latest addition to the company’s MFT1500 series.

The instrument reduces the time required to test electrical installations, as users can plug it into an appropriate socket and initiate the test sequence. They then stand next to the RCD and reset it each time it trips as the testing proceeds.

Without further user intervention, the instrument carries out all five tests prescribed by the 16th edition of the IEE Wiring Regulations and stores the results. These can be displayed on the panel by repeatedly pressing the lock button.

Since RCDs are often located some distance from the sockets they supply, significant time savings are achieved, as users no longer have to continually return to the instrument after resetting the RCD to initiate each separate stage of the test sequence.

The MFT1552 is also supplied with a full calibration certificate as standard.

In addition to automatic RCD testing, the new MFT1552’s facilities include continuity testing with an adjustable-threshold buzzer, continuity measurement up to 99.9 kohms, insulation testing up to 1000 V, standard, selective and DC-sensitive RCD testing, RCD ramp testing, non-tripping and high-current loop tests, three-phase loop tests and prospective short-circuit current measuring.