how to add a little on/off switch to this meter?

hi, quick question, how do i connect a little toggle switch to this meter? what/where do i connect the switch to? i want to set it up to override the push button. Thanks

Picture of how to add a little on/off switch to this meter?
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R4Man1810 years ago
Also if you put a new switch in para with the old one im pretty sure the voltage would stay the same (changes in series -+-+)but the amps would double so it isnt exactly a good idea when working on anything you care about in which you would want a fuse/relay to keep it safe.
R4Man1810 years ago
If I were you I would just trace the traces to find out which part on the switch controlled the power and which part was just soldered on for support in which case you can do many many many things with it. It looks like you have enough room (+ that 9 in para with the rest of the device to power it) to put in a small light bulb or 3 white leds (use an led calc for resistor size) to use that push button for another reason. You can do it 1 of 2 ways (or both but put in a relay just in case you mess up) 1 bridge the 2 contacts on the moment switch and put a switch before the power in/out (on super low volts, anything under 24, it isnt uncommon to see someone put a switch on the neg/ret wire) OR Replace the switch with a toggle/slider spst switch which would do the same as the push button but it would do the holding for you. That looks like and EMF meter. (alot of tours give them out to detect ghosts)
NachoMahma10 years ago
. Isn't the yellow button in the middle of the PCB (operated by the button below the scale) the power switch? If it's staying on, there may be something causing the button to jam.
HTF (author)  NachoMahma10 years ago
yes the push button is the on/off button. nothing is wrong with it. its just a pain to have to hold the button down.
Goodhart HTF10 years ago
You are saying you have to hold the button down for a period of time to turn it off or on? Sounds like the switch being operated is a momentary which case , this would get a little more complicated. I would guess, if this is the case, that the switch was a momentary "ON" button, and so if you added a switch parallel to the original one, you would have to "turn it off" every time, in order to re-active it for next time.
HTF (author)  Goodhart10 years ago
you have to hold it down to have it on, and when you let go it turns off.
Goodhart HTF10 years ago
Oh, ok a momentary on switch with nothing extra.

Ok, then I agree 100% with Nacho: Ah. Then you should be able t put the new switch in parallel with the "old" one.
NachoMahma HTF10 years ago
. Ah. Then you should be able t put the new switch in parallel with the "old" one.
Goodhart10 years ago
If the button you are overriding is the on/off switch Sir Campbell has the solution. If it has some other purpose, from what I see, the button itself is rather small, has no wires to it, only traces. That would be a little rough to intercede that.
chaoscampbell10 years ago
just add it to the red power wire...... that will cut power and restore power thats pretty basic....... I'm either misunderstanding or you might want to rethink doing this without help