Really useful, thanks. Do you have any issues with the earth resistance of the short IEC cable that's normally required to test an extension cable? My UNI-T UT528 can null out the resistance of the earth probe, but that doesn't work for the IEC cable. And that resistance is significant - about 0.15 Ω, probably because the contacts in the IEC plug have oxidised and it's hard to clean them. So even a short extension lead tends to fail the earth bond test. The UT528 has a "long lead" setting, but to get the true resistance of the extension lead I still have to subtract 0.15 Ω, which is a bit clunky. Do other machines handle that better?
Thanks Ben. The cable is very short and it's now showing closer to 0.1 Ω, so most extension cables now pass without the need to adjust the calculation. The machine had been stored for a year or two, and it's probably needed a bit of use to remove oxidation from the contacts. It still seems odd to me that I can null the resistance of the earth probe lead but not the IEC cable. You get what you pay for, and I'm sure your Apollo is more flexible.
That's what hate about the PrimeTest 50 at work, testing long extensions is impossible, the previous Fluke 6200 would at least give a figure and you could work out what was allowed and if it was a faulty or just that it was long. Really can't stand machines that don't let you do individual tests or give an actual ohms reading.
I would say a Prime Test 50 is only good for perhaps a minimal amount of items where a quick test is required. They aren't suitable for the wide variety of applainces that may be found in larger settings
@@caterhampattesting Yes, it's a case of I use what I'm supplied with, generally I am testing items in caravans, so your usual kitchen appliances, TV's etc. so it's not usually a problem. It's only when I need to test the extensions for things like the pressure washer where it's useless, but in theory as I built said extensions I have more faith in them being OK. Most of the other stuff is now done by an external company (it's just an extra job for me) so we don't necessarily need something fancy, although as the external company seem to like putting stickers on low voltage appliances I question the standard of their work.
yes, generally they will have a figure 8 type mains cable and then you perform a class 2 test on the playstation itself by attaching your probe to an exposed metal part.
