"Sandy Mann" wrote in message
...
"Maria Tracey" wrote in message
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Should B10 be B2 ?

Yes it should - you are better than I am! <g

As to why it does not work - what do you mean by does not work? do you
get a zero returned? nothing? or a wrong answer?

Must have been the formatting I think! <g

But how do I get round the two (improbable) successive equal readings or
where this months reading is smaller than last months reading because the
dials have gone full circle ?

Thanks

You're so patient !