Measuring power supplies without a load applied is not a completely reliable method of determining proper function.Does it measure voltage under load?
1033721
You know I am not very qualified to answer this question. I don't know much about electronics. This also came with no directions so I had to youtube videos and google to find out what the different voltages meant.
1033722
Only if the tester supplies the load. The power supply gets connected to the tester or the system, there is no provision for in-line. But it was under $10.
1033723
Not that I can ascertain. As I mentioned in my review, this appears to be a no-load "go/no-go" tool for quick triage. I agree that no-load measurements are not definitive; however they are not completely without utility.
996308
It's just a capacitor farad measurement tool. I don't think your results will be very accurate in-circuit.
1967900
No. This will not check the power supply. This only checks the motherboard and components attached to it. Look for a power supply tester. They are only a few bucks though amazon.
704608
I have no idea but measure whatever setting you chose - with good voltmeter and preferably under load. This power supply puts out twice the voltage the setting indicates. Please use with caution.John
2111327
It is not a load tester. It does not place a load on the battery. It measures the reluctance of the battery and calculates the CCA.
147611
This Power Supply can be used as a meter but is not very accurate and is not advised because it has a limit of 30 volts. The display shows amps and volts together.
2034340
I haven't actually measured it, but I have to assume the output voltage is very stable when the input voltage is within the specs of the device ... that's the whole point of the device.
1554828
Yes, the USB charging circuit in this outlet does use power even when nothing is plugged in. I tested by wiring a Mastech MS8264 digital multimeter in series with the hot lead that powers the outlet. With nothing plugged into the outlet, the multimeter read 0.42-0.44 milliamps at 120VAC. Note that this is not a true-RMS multimeter; the actual power draw was probably more like 0.66 milliamps. That's less than 1/10th of a watt, which might be so little that it doesn't matter to you, but it is definitely nonzero and does add up over time. My review contains some more details about power draw:
1557672
Sure, but it will only measure the AC side of things. If you want to measure the entire RV, you'll need to attach it to the main feed wires going into the distribution panel where it will see power from any source (generator, shore, inverter). To measure power going to/from your battery bank, use meters designed for DC (with an appropriately sized shunt) and place them for either incoming (charger, solar panels, etc.) or outgoing (to the inverter or the DC breakout panel) power. For simple DC voltage measurement in my RV, I use one of these http://www.amazon.com/VoltMinder-Digital-Volt-Meter-Batteries/dp/B001IQ1XW4
31068
Answer here...Yes it will let you know how much wattage each legg is pulling when under load,and wired into your circuit panel.In your case I would think a kill O watt meter might be better,it will let you know how much power the solar panels are producing.Plug inverter into kill o watt meter and from there run out of kill o watt meter to your circuit panel.The MB75 lets you read wattage being used off of each buss in your panel so you can even out your wattage from buss A and buss B,in return making your solar panels produce and last much longer,in my case it makes my portable generator run,and last much longer.Hope this helps let me know how it turns out. Answer here...Yes it will let you know how much wattage each legg is pulling when under load,and wired into your circuit panel.In your case I would think a kill O watt meter might be better,it will let you know how much power the solar panels are producing.Plug inverter into kill o watt meter and from there run out of kill o watt meter to your circuit panel.The MB75 lets you read wattage being used off of each buss in your panel so you can even out your wattage from buss A and buss B,in return making your solar panels produce and last much longer,in my case it makes my portable generator... » Read More Answer here...Yes it will let you know how much wattage each legg is pulling when under load,and wired into your circuit panel.In your case I would think a kill O watt meter might be better,it will let you know how much power the solar panels are producing.Plug inverter into kill o watt meter and from there run out of kill o watt meter to your circuit panel.The MB75 lets you read wattage being used off of each buss in your panel so you can even out your wattage from buss A and buss B,in return making your solar panels produce and last much longer,in my case it makes my portable generator run,and last much longer.Hope this helps let me know how it turns out. « Show Less
1536502
A multimeter shows the V+s are internally shorted as are the COM terminals, though I haven't tried running a 20A load through a single terminal or splitting it.
2068468
Idk. I think you might be asking to much of a voltage detector. Shouldn't rely on this for safety or for electronic motherboard applications. Best bet would be to get a multimeter to suit your application. Fluke always makes a great meter. Could go cheap but you get what you pay for
379038
It only tells you the voltage loss at a specfic load (15 or 20 amps). If the loss is out of line then you would need to investigate to find the cause, like bad connections or undersized wires.
2169065
I didn't see the battery load test described with this meter, nor do I see you that function on the meter. Would like to have that as I understand that gives you a realistic reading how a battery performs under load, not just a voltage output.
815156
Give or take 10%It does not measure the actual voltage supplied to the houseIt makes assumptions feed is a constant 120v
1082800
I found the voltage approximate with 0.25 to 0.5V. Generally the measured voltage would depend on the load. A high current load will likely drop the measured voltage.
1656007
Yes it does require a totally separate power supply for the volt amp meter then the battery you are measuring.