Hi. Using this in a car. Can the meter + wire and monitoring wire connect to same + power source wire in car? Have to be separate connections? Thanks!
603197
Yes, that will work. The meter reading will indicate the value of the power source voltage. Instant battery voltmeter if that's what you want.
603198
I see that another answer conflicts with mine. Perhaps I should add that I tried this before answering. It works fine. I think the secret is that the modules have an onboard voltage regulator. The input is always referenced to ground and really doesn't care what you connect it to.
603199
Yes, you can connect both power source and signal wires. I've tested them from 3v to 30v on the power/signal side, (with no load). Of course a large power draw is going to effect the reading, but if you're that close to the lower limit you should be winding down anyway. Best, Mike
603200
Hi, Yes, you can use the meter power it and monitor it when connected to the same source. You can also have it be powered by another unit to measure something else. The input voltage ranges from 4.5 to 30 volts. Just make sure to not wire the unit backwards as there is no reverse voltage protection. Note that the brown (or black in some models) wire is the main (common) negative wire and the red wire is the positive power wire. The other color yellow (or white in some models) is the positive voltage measuring wire. For example, you would power the volt meter by connecting it to the brown wire to the negative terminal of the voltage supply and the red to the positive terminal of the voltage supply. You then would connect the yellow white to the positive terminal of whatever you are measuring to it and the brown wire to the negative part (you'll need to solder another to it to make a "Y" connection lead). Last remark, the little screw on the back of the unit allows you to calibrate the unit, you might want to compare and make changes to the unit with another volt meter you already know that is accurate as mine was off by 0.2 volts. I hope this helps!
603201
The positive power wire and the monitoring wire can be connected to the same source for an automotive application. This is exactly how I used it on my motorcycle.
603202
They have to be separate. One is to provide power and the other is for metering. Won't work right together.
603203
I have not completed the installation as I had planned to do with these. If I and when I do I wouldn't mind updating you.Placing electronics in an MGB is a bit sticky as the vibration and poor quality of electrical is a bit tough on users and electronic equipment which is added as after market installation.
186323
Almost anything can be wired into a car. This is a home unit design. the power source is 110Volt standard to 9volt 750ma output.I'd look for a car 12volt unit designed for a car
464466
This is a 12 Volt application. The transmitter for the camera gets it's power from the wire that turns on the back up lights to the car. That is one power supply. The front receiver that feeds the monitor gets it's power from the cigarette lighter or hard wired 12 Volt DC. Yes, you need two power sources unless they are in the same area.
327173
Depends on where you are planning to wire it in. I would suggest you watch tutorials videos and buy a voltmeter. Everything else, you can do it!
1064911
Yes, I had the same problem. The two smaller wires are the supply voltage for the meter itself. Red is positive, black is negative. I used 5 Volts DC to power mine. The bigger wires are red, blue and black. Red is the voltage sense, blue and black are for the current sense. Black should be connected directly to ground. The blue then becomes the ground for whatever device you are sensing the current on. So, the ground side of the load goes into the blue wire (then through a shunt resistor) and then out of the black wire to ground. Hope this helps! :)
1825798
This just comes with the car adapter. You might be able to purchase another cord, but probably not worth it. I would look for other ones that are dual power.
1159792
That depends entirely on your car. The outlet in your car determines whether power goes to the device or not. Not the device.
1749653
There is one red and black wire that needs to be connected to a separate power source. I used a 9v battery. Black goes to the side of she shunt inline closest to the battery, the yellow goes to the shunt closest to load. The Red goes to battery positive. I used the meter to measure amps from my inverter. Works great.
653058
This part was made for a car it only works in a car. I would not use it for anything but 12 volts. There is no schematic to tell you where the wires go. It was I think used for the heater speeds for the motor in a car. If you can figure it out it supposed to be four speeds. I could not get it to work so it sits in by junk pile of old parts.
1091495
There will be constant current at the excitation terminal when connected. Had mine over a year with no problems. Be sure to connect the alternator charging wire. I have one terminal charging the car battery and the other charging four batteries for my audio
918688
I used wire of the same gauge. I bought it at Walmart. I made sure to use the same gauge so it wouldn't burn out the lights by sending to much power. I tested it before I installed them and it worked fine. I mounted them and one of the 48" strips didn't work and one of the smaller strips had two colors that burn out. I should have know with the low cost it might break. I wouldn't buy this again. I have green neon from streetglow under another car of mine and it was $120 and has been flawless for four years. DON'T BUY THIS PRODUCT!!
1866309
Yes this application should be fine just remember to limit the current through each meter to no more than 40 to 50 amps. I use one of these between my power supply and my name brand power strip with power pole connectors for my amateur radio staion and whatever else I work on. D Coffey
1283490
I don't have a current meter on this but it would not work with my car or a 1amp power supply I have. It did work when connected to the 12v accessory plug (cigarette lighter) in my truck and boat.
1334072
I'm not sure what you mean, when it's plugged in? That's the only way you can watch it, it needs power to work in the car. Sorry I just didn't understand what you meant by watcing while plugged?
419137
I believe you would need an adapter for the power source. I used this unit in my vehicle, so my wiring harness came with the correct connecter. Contact the seller to see if you can get a .pdf of the wiring schematics, & that should give you a better idea. So other than the power source, all other connections are via RCA jacks. I hope this helped. Good luck to you.
1395476
You can use it in a car, boat, or what ever has wire. There are alligator clips to use with a raw wires in a car. Disconnect the car battery first before using the device. There is a speaker in the receiver and a set of ear buds is also provided. Its a very good set for occasional use. I couldn't believe the price. I had a more expensive Ethernet "toner" at my job but it did the same thing. I used it to trace out my house wiring.
476716
I think this heater pulls a lot of current. I have not tried the in my car power supply, but sometimes other devices will not work in my car.