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Accurate voltage measurements

I am now the proud owner of a shiny new true RMS multi meter I've seen revues of it on YouTube and it gets very good reviews on all aspects of its accuracy and construction and of course safety not sure if I'm aloud to say  which one it is maybe someone will tell me if its ok.  Anyhow it reads the same as 2 of my other meters which are also true RMS  although I didn't know they where. Any how I've found out that the 2 LED meters I bought  that I posted about some time ago are both telling lies although one of them is occasionally telling the truth. It's interesting that the voltage is never still  but is usually around 240 and also if I look at around 23:30 it drops off by 3 to 4 volts which must be when local economy 7 kicks in
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  • Kelly Marie:

    ...unfortunately I've fallen into the trap of believing just because it's digital it must be right  ...




    Kelly,

    Take consolation from the fact that you are far from alone. I used to occasionally help with a training course where we had the trainees checking the operation of a ship's generation plant and they would invariably gather round the digital read-outs, never looking at the analogue meters, let alone comparing the readings (and were always amazed later when we pointed out to them what they had missed!!!)

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  • Kelly Marie:

    ...unfortunately I've fallen into the trap of believing just because it's digital it must be right  ...




    Kelly,

    Take consolation from the fact that you are far from alone. I used to occasionally help with a training course where we had the trainees checking the operation of a ship's generation plant and they would invariably gather round the digital read-outs, never looking at the analogue meters, let alone comparing the readings (and were always amazed later when we pointed out to them what they had missed!!!)

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