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Big Clive's "Trashy" meter, unboxed ( Duratool D03047 multimeter )
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Nikola Tesla Junior IV:
Deep Dig.

It will always be perplexing to me, the value that is placed on money, the rationality of its worth based solely on what you MIGHT procure with it. You might say it makes the world go 'round, you might say that time is money, but in the end, the intrinsic value can and will ultimately lie within the eye of the beholder.

A sound thought would be, as an EE or aspiring, of the many things to consider,  accuracy and safety should inevitably rise to the top.

One could make an equation of such a topic.

Pausing to consider the Essergy, in an attempt to add plausibility or insight to the opinion of the beholder, we still find a negligible array or disqualifying factors, one of the many being Exergy and if you were to consider only the small environmental impacts. We can only conclude that the qualification process has not been 'met' based solely on the factors that an EE or similar should consider when making such a comparison. If you were to factor in safety, manufacturing processes/tolerance/control, accuracy, not to mention the often overlooked "time fooling with this, in a verification aspect", then we can ultimately conclude / make an informed decision.

If you want to add ~$10 to the list of qualifying factors, of the little we find,  then I suggest you examine what sort of intrinsic value that Secretary Alexander Hamilton holds in comparison to the aforementioned, after all, it lies within the eye of the beholder.

 

 
 
Fungus:
Food for thought.
EEVblog:
Accidents happen.
robert.rozee:

--- Quote from: Fungus on April 17, 2023, 06:15:29 am ---Regarding safety of "830" meters, I think the most likely effect of a big transient at home is that they'll go "pop" and cease to function
--- End quote ---

i suspect that you are entirely right. but engineers far more expert on the subject that either of us think otherwise. hence, why we have the various safety standards that exist.

all i am saying is that a piece of gear should EITHER:
a. make no claims, explicit or implicit, that it meets a given level of usability (in this case, to be used to measure AC mains). in the case of a multimeter, this involves removing measurement ranges that fall way outside of the definition of "Extra-Low Voltage": https://en.wikipedia.org/wiki/Extra-low_voltage, OR,

b. contain the necessary design elements to comply with the relevant safety standards (in this case, creepage and clearance, component selection and specifications).

i really don't think what i am suggestion is unreasonable.

now, the reality is that "830" meters WILL continue to be made as they always have been, or even more cheaply, and every now and then there will be a serious accident as a result. we live in a global 'free market economy', and things will only change if the market dictates this. that is, the dollar cost of any 'oopsie' moments exceeds the savings in production cost.

as Dave says, "Accidents Happen".


cheers,
rob   :-)
Fungus:

--- Quote from: robert.rozee on April 20, 2023, 02:12:41 am ---i suspect that you are entirely right. but engineers far more expert on the subject that either of us think otherwise. hence, why we have the various safety standards that exist.

--- End quote ---

Do you wear steel toecap boots and a hard hat at home? You probably should - just in case!  :)

(and wear a condom, too)
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