Originally launched at the start of 2011, the Megger MFT1700 series of multifunction tester (MFT) has arguably established itself as the benchmark of multifunctional installation testers within the UK.

The range now includes four models with the recent addition of the MFT1735 that not only boasts an extensive earth resistance test specification, but also upholds Megger’s user-friendly design ethos.

Which tester do I choose?

The Megger MFT1700 series comprises the MFT1710, the MFT1720, the MFT1730/MFT1730 Onsite and the MFT1735. All of the testers in the range are ingress rated to IP54 (dust and rainproof) and are CAT IV rated which is not usually a customary environment for a multifunction tester to be use in.

Quite simply, the installation testers would suit the following categories of electrical installation:

Electrical Installation Type Megger MFT1710 Megger MFT1720 Megger MFT1730/Onsite Megger MFT1735

Each model is described in detail over the next few articles so that you can understand which tester is the right one for your individual application:

It is important to understand what tests can be carried out by each of the models in order to make the correct choice of tester so you may find these in-depth articles useful before choosing the right model for you.

Initial problems featuring Megger’s patented loop test technology

Many negative online reviews and feedback hampered the product launch success that perhaps Megger had originally hoped for, specifically concerning the patented two-wire low current anti-trip loop test:

  • Tripping of residual current devices (typically Wylex and Crabtree types)
  • Inconsistency of loop test results

Consumers were originally faced with feedback from Megger such as:

‘(We are) still working towards a solution for the variable and inaccurate two-wire loop measurement and to expect further firmware tweaks in the coming months as this is now an iterative process’.

To date and fortunately, the ‘iterative’ process of firmware tweaks has seemingly resolved the above problems.

As such, anybody wishing to purchase a Megger MFT 1700 series of tester can ignore the initial negative feedback featured in online forum posts or press articles, or at very least to check that the date of the article is no later than late 2013.

Megger MFT 1700 Quick Comparison Chart

MFT1710 MFT1720 MFT1730 MFT1730 Onsite MFT1735
200mA Continuity Test
Automatic Start Continuity Test
Insulation Resistance Test 250 & 500V 250, 500 & 1000V 100, 250, 500 & 1000V 100, 250, 500 & 1000V 100, 250, 500 & 1000V
RCD Test
Automatic RCD Test
RCD Ramp Test
Type B RCD Test
2 Wire Anti-trip Loop Test
Z-Ref Loop Feature
Z-Max Loop Feature
2 & 3 Pole Earth Resistance Test
ART Earth Resistance Test Option
Stakeless Earth Resistance Test Option
Earth Spike Kit Included
Download Memory
Software Included
Leakage Current Measurement Option Option Option Option
Remote Test Probe Included

If you need any further assistance, we are committed to providing impartial help over the phone and you can contact any of our advisors or myself on 01132 48 99 66.