New Dilog DL9118 MFT - Anyone with hands on experience?

[eveares]

Just wondering if anyone here has tried or had the chance to experience the new Dilog DL9118 17th edition Multi Function tester?

Link: http://www.testermans.co.uk/Di-Log-...r-Remote-Test-Probe-Tool-Box-Style-Carry-Case

For those who have used it, how did it compare to the more well respected MFT's such as the Megger 1721/1825 or the Fluke 1662?

Regards: Elliott.

 

[chivers67]

I use a Dilog a basic model > http://www.testermans.co.uk/multifu...DiLog-9083P-17th-Edition-Multifunction-Tester.

The link you've posted of that tester looks very much like a Fluke, they're probably made in the same factory with the same guts. With a few more leads looks like a good bit of testing kit.

 

[eveares]

Just noticed the DiLog DL9118 only has a 2 wire test current of 3.5 Amps. Even Meggers MFT 1700 series only has a test current of 4.0 Amps.

How detrimental is this to the accuracy of external loop impedance readings (Ze)? I thought most MFT's have a 2 wire test current in the 15-25 Amps range.

 

[Adam_151]

Just noticed the DiLog DL9118 only has a 2 wire test current of 3.5 Amps. Even Meggers MFT 1700 series only has a test current of 4.0 Amps.

How detrimental is this to the accuracy of external loop impedance readings (Ze)?

Its far from the only factor, there are many other factors at place including quality of the leads and how the signal is processed and noise eliminated.

I thought most MFT's have a 2 wire test current in the 15-25 Amps range.

Very few (if any) do, even most separate loop testers don't test with a current that high these days, even the megger LTW415 which has a special high resolution range only uses a test current of 4A. Even the LT300 which seems to be the standard issue loop tester to the supply board round here and is probably aimed at that market (no no-trip range for example) only tests at 12A. I understand some of the older robin loop testers used far higher test currents but could easily take out 5A rewirable fuses

 

[eveares]

Its far from the only factor,

I get that, but I was referring to how the one variable of test current (In 2 wire high current loop impedance tests) affects the accuracy of the readings. (Assume all other variables are as good and constant as possible.)

I assume sophisticated and advanced ways of calculating earth loop impedance tests in MFT's mitigates the need for very high test currents.