I'm not quite sure what you mean. Only the L and N go to the RCD (which is immediately after the meter and isolator, hence is the most 'upstream' thing in my installation), but the MET, hence bonding and earthing conductors, are totally separate issues - so what do you mean by the RCD being 'upstream' of them?
I'm not sure what all this talk of the "no trip setting" actually means. Despite the manual (which covers other models as well), 1652's (well, mine!) only have one loop impedance setting, and that appears to be the 'no trip one'.
See page 27.
Page 27 contains only notes relating to the instruction given on Page 26, the first of which is:
That first placeholder (relating to a high current loop test symbol) refers to a position of the rotary switch which doesn't exist on my 1652 (either of my 1652s!). Does the switch on yours have such a position?
Since, when I did it, my Fluke 1652 tripped the upfront RCD, I was 'plunged into darkness' and so don't know what, if anything the display had to say for itself!
Does it not have a backlight?
Well, yes, but one needs to be able to find button to press to get it on. When I tripped the upfront RCD, my 'phase failure system' came into operation and provided light from a different phase. However, that lighting is only designed and intended (and positioned) to help one find one's way around, not to find buttons on an MFT.Does it not have a backlight?
Yes, it can, and EFLI is looking at a version of the manual which explains this more clearly. The F1 button toggles between "L-PE" and "L-N" loop testing, and I have always just thought of it as such. However, what I should have realised (and what EFLI's manual, but not mine, explains) is that one can do an "L-N" loop test ('2-wire') between L and PE. I would have thought that they could have made the display (and buttons) a bit more explicit about this .... but, anyway, one learns something every day!
Yes, I now realise that - see my response to Iggifer. Partially because of the manual I've got, and partially through not having thought about it, I have always taken that functionality as being what it says - toggling between L-N and L-PE loop tests. I probably should have thought of it, but it never occurred to me to do a "L-N" loop impedance test (since that's what it says in the display) between L and PE!
See my respopnses to Iggifer and flameport. I think I now understand what has confused me - I have a manual which covers several different models, but yours is presumably just for the 1652. It's a bit naughty the way they've written mine but it does not really talk about doing a 2-wire high current EFLI test in "L-N" loop impedance mode, since, instead, (and without saying so) they talk about a different model which has a (rotary) switch position for the 2-wire EFLI test (which the 1652 doesn't have).
Same here.
Ah - mine is dated 2010 - maybe they 'improved' it
Same here, on both counts.
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