diy sprut esr/ lealage meter

[peter g]

hi all, i recently built the above meter that was listed on kriptons esr meter builds.there are three words in german that i would like translated. they are lade, entlad and messe c. can anyone help? thanks.

 

[augustinetez]

lade is "charging" and entlad is "discharging".

I've asked a German friend about messec

Edit: I think it means something along the lines of Capacitance is... but my friend should be able to confirm either way.

 

[peter g]

hi,and thanks for your quick reply. i thought possibly lade meant shorted or leaking as it appears when i connect a shorted cap to the tester?

 

[augustinetez]

What happens when you connect a known good cap?

It is possible it has another meaning (haven't had a reply back yet and time zone differences mean I probably won't hear until tomorrow).

 

[JimB]

Messe could be measure, from the verb messen - to measure.

Interestingly, until five minutes ago, the only meaning I knew for messe was exhibition hall.

JimB

 

[peter g]

when i connect a good cap the 3 words flash in turn with the word o.k.

 

[alec_t]

Google says messe = fair

 

[peter g]

there seems to be multiple meanings?

 

[augustinetez]

when i connect a good cap the 3 words flash in turn with the word o.k.

That would make sense as the circuit first charges the cap and then discharges the cap and makes measurements along the way.

When you try the shorted cap, it is trying to charge it and won't proceed to the next stage because of the short and lack of charge.

 

[peter g]

yes, that makes sense. did your german friend ever respond?

 

[augustinetez]

Not yet, I might have to send a message again (my messages to him have been known to disappear into the ether for unknown reasons).

Edit: I've sent another email.

 

[augustinetez]

Got the answer back:

JimB was correct - messe C = measuring C

lade & entlad was what I said they were previously - charge and discharge.

 

[peter g]

o.k., so if the cap under test can't charge lade is displayed. how is entlad related to a defect. sorry, for my dullness.

 

[augustinetez]

I would have to go off and study the circuit and code a bit more, but I'd say if the charge doesn't come up to a specific value with in a preset amount of time, the circuit would assume it was either leaky or either low or high in value.

Most of theses devices work by looking at how long something holds a charge, how long it takes to charge/discharge or the current through the cap once charged (leakage) or a combination of those methods. Note that the above is a simplified explanation of how they work without all the maths (I hate maths ).

 

[Les Jones]

Googling "diy sprut esr/ lealage meter" only gets me back to this thread. Is the a proper URL to see what is being discussed ?

Les.

 

[peter g]

the particulars for building this device is located at kriptons esr depository.

 

[augustinetez]

English translated version : **broken link removed**

And the original German details: https://www.sprut.de/electronic/pic/projekte/elko/elko.htm

 

[Les Jones]

Hi Terry, Many thanks for providing the information that should have been provided by the OP.
It looks to be a very well presented design with a good explanation of the theory of operation.

Regards Les. (G8FUB)

 

[peter g]

in my first thread i provided the necessary info.