Another shunt question

Youngmic

New Member
Joined
Nov 4, 2006
Messages
5
G'day,

Just by way of an opener, I am now 8 years in with the D10 and it has been faultless and brilliant.

Recently I went looking for a suspected current leak with a multimeter following a new Delco AGM battery dying after sitting for 6 weeks. I did not find any significant leak so still a mystery.

What I did find was the ammeter pick offs from the Shunt were drawing 3.5ma, (and the D10 clock of course pulsing a 1.6ma draw which I new about).

The D10 is in a Vari-eze so no starter motor and the basic wiring is from the battery positive to the shunt then onto the heavy duty master switch then onto the various CB's.  The shunt is in position A by way of the Dynon install diagram.

As the total current draw is so low the original builder ran a hot master switch rather than a relay from the master switch.

My question is, is it harmful for the D10 to always have a live feed to the ammeter even when the D10 is off, and is 3.5ma current draw normal for the ammeter circuit.

Regards
Mick
 

dynonsupport

Dynon Technical Support
Staff member
Joined
Mar 23, 2005
Messages
13,226
This draw is normal if the shunt input is always hot. It does not hurt the D10. If you care to, the only way to get rid of it is to switch the amps shunt inputs off somehow, which could be done with a small relay or putting the shunt after the master.
 
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