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If you ground your leisure accessories to the chassis and only power them from the leisure battery you can run the shunt in-line to the chassis on the (-) terminal. I'm using a similar gauge for my PG&E backup system. It'll only show current one way. ie if you charge it, it'll show 0 current being put into the battery.
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Feb 22, 2020 17:45
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Tomarse posted:So If i put the shunt in-line between the leisure fuse box and leisure battery -ve it should show me the draw from leisure stuff grounded 'properly' back to the fusebox, My interpretation of being grounded back to the leisure box is that this is fused grounds correct? the following diagrams work for this, as well as if it's a grounding post that just happens to be located at the fusepanel. Simplifying your description into Leisure fusebox >>(to) battery. Battery >> chassis. your quote above: Description here: Leisure fusebox >> [shunt] >> battery >> chassis This config will show you 95% of the load being placed on the battery. Why? the shunt cannot monitor the second return path on 5% of the accessories through the chassis ground. It's electrically on a different circuit. Tomarse posted:but if I put it inline between the battery -ve and chassis ground point it will show everything? Do i have anything to lose by going for the latter choice and getting everything? Description Leisure fusebox >> battery >> [shunt] >> chassis This configuration will show you 5% of the load being placed on the battery. why? in this configuration the shunt cannot monitor the path through the leisure fusebox which is 95% of the load. to get 100% of the load reconfigure as follows: Leisure fusebox >> chassis , battery >> [shunt] >> chassis. This involves a "T". Battery >> [shunt] >> chassis. "T" the Leisure fusebox into the chassis side of the shunt. battery >> [shunt] >> leisure fusebox >> chassis. ground the chassis to the fusepanel if it's possible. The shunt is bi-directional. the gauge isn't. A small electronics project could make it bi-directional, or with the least amount of effort wire a second gauge in with the sense leads in reverse. one will show discharge, the other recharge. Have your charge controller power the recharge gauge only when it's charging. Do test your gauge in case it is different than the ones i've used. E: if this is confusing as gently caress and something visual would work better than a wall of words, say so and I'll draw up some diagrams. cursedshitbox fucked around with this message at 18:42 on Feb 23, 2020 |
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Feb 23, 2020 18:33
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Tomarse posted:This is how it is now. Ancillaries shown here are approximate! - note that a couple are grounded direct to the chassis whereas most come back to a single ground post in the fusebox: Yup that's right. Only addition would be to put the solar panels ground on the shunt with everything else so you can monitor charge current.  as for the gauge, test to see if the one you currently have will do charge current. mine won't. yours, may. if not, should be able to put a second one reversed into the shunt like you're saying. Label em accordingly to be nice to future you.
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Feb 25, 2020 21:58
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Looks like your lego project ran outta the same color bricks there towards the end. I loving love it.
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Aug 10, 2022 00:37
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