I have 4 Fixed voltage source and two Adjustable, and one voltage and Ammeter display someone knows how to connect it?, I just found videos of one power source. (I'm a beginner in electronics and sorry for any grammar mistakes

 

What is the part number for the display? Do you have a manual/datasheet?

Do you want the meter to display information for all of the voltages? If that's the case, you need a way to switch the display between them.

 

If you purchased that meter from a distributor it should come with a single sheet showing which colored wire is for what. If you purchased it from amazon you are probably out of luck. Or if you lost the connection diagram.
One thing to be aware of is that many such digital meters require a separate ISOLATED power source for their operation.

 

What is the part number for the display? Do you have a manual/datasheet?

Do you want the meter to display information for all of the voltages? If that's the case, you need a way to switch the display between them.

Yeah I want the meter to display for all voltages. How can I make them switch?. Also I didn't find any kind of part number

 

If you purchased that meter from a distributor it should come with a single sheet showing which colored wire is for what. If you purchased it from amazon you are probably out of luck. Or if you lost the connection diagram.
One thing to be aware of is that many such digital meters require a separate ISOLATED power source for their operation.

It didn't come with any data sheet. Whit isolated... Cant just be the first thing that gains power?

 

Yeah I want the meter to display for all voltages. How can I make them switch?. Also I didn't find any kind of part number

One way is to use a rotary switch. One with 4 poles and 5 throws would do it.

The way those meters usually measure current is by inserting a sense resistor and measuring the voltage drop across it. Multiple ranges would complicate things further.

These switches from Newark might do it, but they cost $56-166 and only one is good for more than 1A.
5 Position Rotary Switches | Newark Electronics

 

One way is to use a rotary switch. One with 4 poles and 5 throws would do it.

The way those meters usually measure current is by inserting a sense resistor and measuring the voltage drop across it. Multiple ranges would complicate things further.

These switches from Newark might do it, but they cost $56-166 and only one is good for more than 1A.
5 Position Rotary Switches | Newark Electronics

That's a really good idea sadly I can't buy anything and it's for tomorrow lol, but I thought of an idea what if I connect it this way, besides the aesthetic, does it work?, and if it doesn't why?

 

This is a typical connection:

 

This is a typical connection:
View attachment 344175

I can hardly read that. if the yellow one is constantly changing of power source it shouldn't affect the meter right?

 

I can hardly read that. if the yellow one is constantly changing of power source it shouldn't affect the meter right?

The devil is in the details. The info I posted was for a meter that required a supply of 4-30V. So as long as the voltage being measured was in that range, the second connection could be used.

For that particular meter, the red wire is the meter supply and yellow is the voltage being measured.

Without info for your meter, we have to guess.

 

The banana jacks would have been more secure if you split them as indicated; and used a drill to make the holes.

 

The devil is in the details. The info I posted was for a meter that required a supply of 4-30V. So as long as the voltage being measured was in that range, the second connection could be used.

For that particular meter, the red wire is the meter supply and yellow is the voltage being measured.

Without info for your meter, we have to guess.

Yes I think it's like that(the measure that I'm going to do is 5-12), the second connection means that I got to put both the red wire and the yellow wire in the Caiman?

 

Hahaha, I didn't now notice that, it's too late for my box though

 

Hahaha, I didn't now notice that, it's too late for my box though

5-way binding posts would have been better anyway...

 

the second connection means that I got to put both the red wire and the yellow wire in the Caiman

They go to the supply positive.

 

Okaaay, I got it all know thanks

 

Many of the cheap digital meters that I have seen require that the operating power supply for the meter be totally isolated from the voltages and currents connected for measurement.
So when the present meter fails, buy one that comes with the connection information.