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Adding an indicator led to a multimeter when it is on? Answered

I would like to add an indicator led because I keep leaving it on and draining the power.

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iceng
iceng

Best Answer 5 years ago

Better then a steady LED blink it once every ten sec less power and catch your eye.

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iceng
iceng

Answer 5 years ago

Here is a circuit to work with :-)

flasher.PNG
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steveastrouk
steveastrouk

Answer 5 years ago

I thought that chip was obsolete ! Nice circuit.

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Wired_Mist
Wired_Mist

5 years ago

Why not make an AC adapter?

Many DC-Barrel jacks will allow you to draw power from your battery when not plugged in. This would let you stay mobile around your shop.

Then when you are at your bench plug it into an appropriate DC power adapter.

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-max-
-max-

5 years ago

What multimeter? It might be easy to hack on a LED to the range switch, so it comes on when anything but the off position is selected. You may even be able to find the product manual for it and a auto shut off option.

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hkerr
hkerr

Answer 5 years ago

It has a button to turn it on

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steveastrouk
steveastrouk

5 years ago

Not difficult to do, but try and find a high efficiency red LED, one that will run happily, and bright enough on <1mA - or your LED will flatten your battery faster than just leaving it on.