when I say its a fluke thats the make they cost over a hundred quid it is an electricians meter and it reads 12 volt on a 12 volt battery output
12v LCD TV
- Thread starter Rudster
- Start date
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Yes, it can be quite annoying leaving your tools on a job.
I am the electrician
Afaik, then reading 12 volt dc from a battery is not the same as reading 12 volt from a switched mode power supply.
Fluke meters are over 100 pound sometimes, a True rms meter is most likely dearer than that.
Fluke meters are over 100 pound sometimes, a True rms meter is most likely dearer than that.
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I think you will find that the rms meters are only more reliable on ac it does not effect dc no sine wave
further more I have checked the spec of mine and it is 0.3 reliable on dc voltages
further more I have checked the spec of mine and it is 0.3 reliable on dc voltages
Was the supply under load when you tested it?
no it was not under load the only way I can do that is to connect my meter in line and I would need a spare socket to do that as the 4pin din plug is too small to connect to
Given that its only 12v you could always just cut into the cable and tap the wires going to the din plug.
I couldn`t handle all the hastle Ive took the TV back and got my money back sorted
E
EdwardCurrent
I must admit I've lost the plot concerning why portable 12V TVs can't be used on a 12V supply without needing to open up your battery and try to get 6-0-6v out of it....
well if you had read all the posts you would have seen it was not a straight forward power lead connection it was via a 4pin split voltage mini din plug thats what I was questioning sorry I thought that was what the forum was for
Its not a split voltage anything.
Its just 2 12v pins and two ground pins.
The Supply is rated at something like 4.5A and while i dont have the exact model specs of the mini din plug to hand, i would guess that because the pins cant individually handle that current they've doubled them up.
Why you were only measuring 5v with your meter i dont know, but it doesnt make any sense given the PSU output and TV input both rated at 12v.
If it had been mine, i'd have hooked it up to the 12v supply and been done with it.
Its just 2 12v pins and two ground pins.
The Supply is rated at something like 4.5A and while i dont have the exact model specs of the mini din plug to hand, i would guess that because the pins cant individually handle that current they've doubled them up.
Why you were only measuring 5v with your meter i dont know, but it doesnt make any sense given the PSU output and TV input both rated at 12v.
If it had been mine, i'd have hooked it up to the 12v supply and been done with it.
exactly you dont know
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