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| EEVBlog 121GW Multimeter Firmware Details |
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| Terry01:
--- Quote from: HKJ on December 07, 2018, 03:08:08 pm --- --- Quote from: Terry01 on December 07, 2018, 02:44:22 pm --- Cool, thanks for the information. I would never have guessed that as there is no indication on the meter around the jacks and I haven't read the manual. --- End quote --- There is a indication, the A terminal is marked "A 500mA", because it is both ampere and 500mA range. --- End quote --- I agree that 500mA is clearly marked on the A jack but can't see how that would indicate the mA jack is only good for 55mA. I also see no one else has told me that and I have made a couple of posts about trying to feed 90mA into the mA jack so it can't be that obvious or well know or someone else would have said. |
| darik:
--- Quote from: Terry01 on December 07, 2018, 04:42:20 pm --- --- Quote from: HKJ on December 07, 2018, 03:08:08 pm --- --- Quote from: Terry01 on December 07, 2018, 02:44:22 pm --- Cool, thanks for the information. I would never have guessed that as there is no indication on the meter around the jacks and I haven't read the manual. --- End quote --- There is a indication, the A terminal is marked "A 500mA", because it is both ampere and 500mA range. --- End quote --- I agree that 500mA is clearly marked on the A jack but can't see how that would indicate the mA jack is only good for 55mA. I also see no one else has told me that and I have made a couple of posts about trying to feed 90mA into the mA jack so it can't be that obvious or well know or someone else would have said. --- End quote --- The "OFL" that the meter displayed means exactly that you have exceeded the current limit in the selected range. What else could OFL mean in an amps setting? That was a good indication, but you incorrectly assumed the meter was lying to you. |
| Terry01:
--- Quote from: darik on December 07, 2018, 05:56:00 pm --- --- Quote from: Terry01 on December 07, 2018, 04:42:20 pm --- --- Quote from: HKJ on December 07, 2018, 03:08:08 pm --- --- Quote from: Terry01 on December 07, 2018, 02:44:22 pm --- Cool, thanks for the information. I would never have guessed that as there is no indication on the meter around the jacks and I haven't read the manual. --- End quote --- There is a indication, the A terminal is marked "A 500mA", because it is both ampere and 500mA range. --- End quote --- I agree that 500mA is clearly marked on the A jack but can't see how that would indicate the mA jack is only good for 55mA. I also see no one else has told me that and I have made a couple of posts about trying to feed 90mA into the mA jack so it can't be that obvious or well know or someone else would have said. --- End quote --- The "OFL" that the meter displayed means exactly that you have exceeded the current limit in the selected range. What else could OFL mean in an amps setting? That was a good indication, but you incorrectly assumed the meter was lying to you. --- End quote --- Yes I agree. I incorrectly assumed the meter was lying to me but lets be clear the meter is hardly 100% trust worthy is it? There are loads of posts of the meter lying or not doing what it's supposed to or whatever. I can hardly be faulted for thinking it was just something else wrong with it. I have a few other meters that are not limited to 55mA in the mA range and I haven't read the manual for the 121GW. Like I say too, I posted a couple other times about this problem and no one else knew this so if it was that obvious someone else would have knew and told me. You think it's obvious, I don't. I can't see how "OFL" would translate into "55mA is the max this jack will read" |
| Terry01:
I will read the manual for this meter next time I have a while to take it in for sure. I have MS and sometimes I need to read the same thing 3 or 4 times for it to register. Things like user manuals and the likes I read on days where I feel like my memory will co-operate with me. The meter has a few nice features for sure. 1 of the other things I got caught out with was, I put fresh lithium in it when I got it and another forum member pointed out to me the little bit extra voltage "fresh" lithium have is enough to affect the diode and resistance mode so it's not a good idea. Something else that is probably clearly stated somewhere and I never read it or whatever but I would say is not obvious too. Something that is obvious..... I need to RTFM!! :o My lack of knowledge probably plays a huge part too but hey ho! |
| HKJ:
--- Quote from: Terry01 on December 07, 2018, 06:14:02 pm ---Yes I agree. I incorrectly assumed the meter was lying to me but lets be clear the meter is hardly 100% trust worthy is it? There are loads of posts of the meter lying or not doing what it's supposed to or whatever. I can hardly be faulted for thinking it was just something else wrong with it. --- End quote --- I have not seen that, in some extreme cases the meter shows wrong values, in normal usage it may be slow or it may be unstable, but it do not show wrong values. This is something you have to know about every meter you use, where is it correct and stable, where may it show wrong value and where is it wrong most of the time. I do not remember it for all my meters, but if the value is outside expected values I check with another (or more, even a scope) meter. |
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