Get True battery Voltage At Voltmeter

Get True battery Voltage At Voltmeter

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Penelope Stopit

Original Poster:

11,209 posts

108 months

Saturday 8th July 2017
quotequote all
A post from member Magpies gave me this idea

magpies

5,129 posts

181 months

Saturday 8th July 2017
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I presume this takes a lead from the load side of the ignition switch (or ign relay if it has one)
My S has a motorsport battery isolator so will tale the lead from the load side of that. I realise it will show voltß as long as the isolator is closed.

Edited by magpies on Saturday 8th July 19:35

Penelope Stopit

Original Poster:

11,209 posts

108 months

Sunday 9th July 2017
quotequote all
magpies said:
I presume this takes a lead from the load side of the ignition switch (or ign relay if it has one)
My S has a motorsport battery isolator so will tale the lead from the load side of that. I realise it will show voltß as long as the isolator is closed.

Edited by magpies on Saturday 8th July 19:35
It could be well worth a test, what bothers me is that you seem to have carried out many modifications that should have solved any volt drop issues on the ignition fused supplies
I wonder if you have an oversensitive gauge

magpies

5,129 posts

181 months

Sunday 9th July 2017
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I have paralleled a digital gage (both not calibrated) and it does seem to follow the TVR gauge.

Penelope Stopit

Original Poster:

11,209 posts

108 months

Sunday 9th July 2017
quotequote all
magpies said:
I have paralleled a digital gage (both not calibrated) and it does seem to follow the TVR gauge.
Wiring a voltmeter through a relay to the battery will/should cure the low readings, the problem is this solution doesn't cure the fault
Test box time for you

magpies

5,129 posts

181 months

Sunday 9th July 2017
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Yep. I'll also see if I can borrow a thermal camera from work too as I believe it will be down to dirty contacts.

Penelope Stopit

Original Poster:

11,209 posts

108 months

Sunday 9th July 2017
quotequote all
magpies said:
Yep. I'll also see if I can borrow a thermal camera from work too as I believe it will be down to dirty contacts.
It would be nice if the thermal camera could record what it was seeing, you could post the video of your findings here
This thermal camera business could turn out to be the future in electrical fault finding
Imagine it, 5 hours taken by one person ripping a car apart to find a volt-drop
You with your thermal camera taking 1 minute to find a volt-drop

Feck, you are onto something big here. We must delete all these posts containing the thermal camera stuff and then get the company up and running, this will go viral and you could have motor vehicle electrical fault finding companies all over the world in no time

PoleDriver

28,614 posts

193 months

Sunday 9th July 2017
quotequote all
Penelope Stopit said:
It would be nice if the thermal camera could record what it was seeing, you could post the video of your findings here
This thermal camera business could turn out to be the future in electrical fault finding
Imagine it, 5 hours taken by one person ripping a car apart to find a volt-drop
You with your thermal camera taking 1 minute to find a volt-drop

Feck, you are onto something big here. We must delete all these posts containing the thermal camera stuff and then get the company up and running, this will go viral and you could have motor vehicle electrical fault finding companies all over the world in no time
nono
Some of us have been doing it for years! smile

Penelope Stopit

Original Poster:

11,209 posts

108 months

Monday 10th July 2017
quotequote all
PoleDriver said:
Penelope Stopit said:
It would be nice if the thermal camera could record what it was seeing, you could post the video of your findings here
This thermal camera business could turn out to be the future in electrical fault finding
Imagine it, 5 hours taken by one person ripping a car apart to find a volt-drop
You with your thermal camera taking 1 minute to find a volt-drop

Feck, you are onto something big here. We must delete all these posts containing the thermal camera stuff and then get the company up and running, this will go viral and you could have motor vehicle electrical fault finding companies all over the world in no time
nono
Some of us have been doing it for years! smile
Good luck to those that have been doing it for years, this method is not of common knowledge to the public
Auto Electricians will be redundant in the future, all that is needed is a thermal camera and a Monkey

PoleDriver

28,614 posts

193 months

Monday 10th July 2017
quotequote all
Penelope Stopit said:
Good luck to those that have been doing it for years, this method is not of common knowledge to the public
Auto Electricians will be redundant in the future, all that is needed is a thermal camera and a Monkey
I spent my early career working with heat sensing systems for military applications! smile

Penelope Stopit

Original Poster:

11,209 posts

108 months

Monday 10th July 2017
quotequote all
PoleDriver said:
Penelope Stopit said:
Good luck to those that have been doing it for years, this method is not of common knowledge to the public
Auto Electricians will be redundant in the future, all that is needed is a thermal camera and a Monkey
I spent my early career working with heat sensing systems for military applications! smile
It is possible that you are responsible for a missile going through my central heating boiler rather than the split the atom factory down the road

PoleDriver

28,614 posts

193 months

Monday 10th July 2017
quotequote all
Penelope Stopit said:
It is possible that you are responsible for a missile going through my central heating boiler rather than the split the atom factory down the road
Very probably!

magpies

5,129 posts

181 months

Monday 10th July 2017
quotequote all
Penelope Stopit said:
Good luck to those that have been doing it for years, this method is not of common knowledge to the public
Auto Electricians will be redundant in the future, all that is needed is a thermal camera and a Monkey
all it is is an extra tool to try and find things - at my age I need all the aids I can use

(it may or may not find the problem)

Penelope Stopit

Original Poster:

11,209 posts

108 months

Monday 10th July 2017
quotequote all
magpies said:
Penelope Stopit said:
Good luck to those that have been doing it for years, this method is not of common knowledge to the public
Auto Electricians will be redundant in the future, all that is needed is a thermal camera and a Monkey
all it is is an extra tool to try and find things - at my age I need all the aids I can use

(it may or may not find the problem)
I bet with a bit of tweaking it will find anything
This is clever, very clever and I like clever stuff
I admire your way of thinking