Daydream believer
Well-Known Member
One of the reasons I go sailing is to get away from that d...d TV
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12V DC To 240 AC Inverter Question
- Thread starter GAJ52
- Start date
William_H
Well-Known Member
The way to check out the low voltage wiring is to use a digital multimeter.(mm). Attach the positive lead of the mm to the positive terminal of the battery. (One of them) I assume batteries are normally in parallel. Now place the negative lead of the mm on the positive point on the inverter. Using a low voltage range the meter will read directly the volt drop of the pos wiring from battery to inverter. (with the inverter and TV drawing current. This should be less than .2 volt. Do the same with the negative feed. ie mm neg lead on the battery terminal and pos mm lead on the negative input point on the inverter.
Now from your description you are getting large total volt drop. ie negative and pos feeds together. This test can identify which lead is causing most problem. You can move the mm probe along the path towards the battery and may identify what component is causing the most volt drop. ie plug and socket for 12v or fuse in the board or even the isolator switch.
Alternatively as said move the inverter to near the battery and use short heavy wires to the battery terminals. (use a large fuse ie 15 amp or more.) Even if you do this temporarily you may find the problem. good lcuk olewill
Now from your description you are getting large total volt drop. ie negative and pos feeds together. This test can identify which lead is causing most problem. You can move the mm probe along the path towards the battery and may identify what component is causing the most volt drop. ie plug and socket for 12v or fuse in the board or even the isolator switch.
Alternatively as said move the inverter to near the battery and use short heavy wires to the battery terminals. (use a large fuse ie 15 amp or more.) Even if you do this temporarily you may find the problem. good lcuk olewill
William_H
Well-Known Member
The way to check out the low voltage wiring is to use a digital multimeter.(mm). Attach the positive lead of the mm to the positive terminal of the battery. (One of them) I assume batteries are normally in parallel. Now place the negative lead of the mm on the positive point on the inverter. Using a low voltage range the meter will read directly the volt drop of the pos wiring from battery to inverter. (with the inverter and TV drawing current. This should be less than .2 volt. Do the same with the negative feed. ie mm neg lead on the battery terminal and pos mm lead on the negative input point on the inverter.
Now from your description you are getting large total volt drop. ie negative and pos feeds together. This test can identify which lead is causing most problem. You can move the mm probe along the path towards the battery and may identify what component is causing the most volt drop. ie plug and socket for 12v or fuse in the board or even the isolator switch.
Alternatively as said move the inverter to near the battery and use short heavy wires to the battery terminals. (use a large fuse ie 15 amp or more.) Even if you do this temporarily you may find the problem. good lcuk olewill
Now from your description you are getting large total volt drop. ie negative and pos feeds together. This test can identify which lead is causing most problem. You can move the mm probe along the path towards the battery and may identify what component is causing the most volt drop. ie plug and socket for 12v or fuse in the board or even the isolator switch.
Alternatively as said move the inverter to near the battery and use short heavy wires to the battery terminals. (use a large fuse ie 15 amp or more.) Even if you do this temporarily you may find the problem. good lcuk olewill