Is there a kWh meter for volt operation? CaliforniaBear Clearwater Blue Metallic. I've done a search here with no success as well as a Google search. JamesBurke Senior Member. Well yes and no. You probably have one on your house it's called your electric meter. That's pretty much what you would need for v. The internals can be had as E-Meters but they're still pricey.
Check this post for a view of engineering evaluation kits. Attention Kill A Watt Nerds. John H Senior Member.
This works well for V and you can monitor the whole house as well as separate circuits or sub-panels. There is a version of the Kill-A-Watts appliance for volts, mostly for the European market. Search on e-Bay. Yes - you can buy something like a Fluke clamp-on Amprobe That requires clamping onto just one wire Coyotefred Member.
I've been using mine for about two years now. My main criticism is that you're limited to only 4 measuring devices MTUs. I'm using mine to monitor my solar panel system, my wind turbine, and then two separate elec panels home and an outbuilding.
I'd love to have another MTUs to be able to monitor specific circuits, but you don't get that without stepping up to a much higher-priced system. And you can calibrate the MTUs if you find that the readings are "off" for some reason based on your other testing. Once you start monitoring your elec use it's addictive I recall reading a study somewhere that just like dieting If you're just interested in some isolated readings then TED doesn't make much sense.
CaliforniaBear likes this. Thanks to all for the info on TED. Its not cheap but would do a really good job of tracking PIP volt power usage. Mike Senior Member. All you'd need to do is to buy a used analog Watthour meter for a house, a meter socket and wire it before the charging outlet. Analog meters are being widely removed from service by utilities and are being replaced with digital Smartmeters and ones that are being read wirelessly.
Check with your local utility. Some co-ops might give them away free, if you're a customer. Old round 60 amp meter sockets are left abandoned when old houses are rewired. I've seen many disconnected ones on many houses in old neighborhoods.Testing Power Usage with a Kill a Watt Meter
They might also be had for FREE. R-P Active Member.It is necessary to know or measure the power consumption of your devices and appliances before an alternative energy system is put in place. You need to understand the energy requirements. Are considering or planning an off-grid or standalone alternative energy system such as a solar PV system? Maybe for your home, your cabin or wherever else? Maybe just a source of backup power for a few things?
One of the first things you need to do is to check the energy usage or power consumption of the appliances and devices that you intend to use. I have a background in electronics, electricity, and electro-mechanical. My assumption for this article will be that you have some basic knowledge. The goal here is to supply enough alternative energy to power some devices.
Maybe lights, a refrigerator, chest freezer, furnace, or any other electrically powered appliance or device. Some devices draw a constant and same amount of power.
Re: Kill-a-Watt meter for 110-220 Volts
Other devices or appliances will vary their consumption over time. For example a refrigerator will cycle its compressor pump on and off throughout the day. While the power of some devices will remain the same a light bulb will always use the same power over timethere are some devices which vary. And the only real way to know how much power the device uses is to measure it over time. So the only accurate way to measure it is to leave it plugged in to the Kill-A-Watt meter for say, 24 hours. The meter indicated that it had consumed 1.
By simply dividing 1, by 24, I knew that my refrigerator draws 57 watts of power on average. The freezer was already at temperature and filled. After 24 hours it had consumed only 0. You get the idea — you simply plug in various devices and measure them over time to get an accurate averaged measurement.
I even measured the power consumption of my furnace. I let it run this way for several days to get a good average. It turned out that under the worst of conditions it was about 20 below zero each of those nights! Not bad! Certainly no problem for my battery bank…. I used the data to build a spreadsheet. It helped while deciding upon efficiencies, system integration, etc.
While my electric utility bill provides an overall energy consumption for a given month total kWhit helps immensely to understand the individual energy demands of each device and appliance. I literally measured everything that uses electricity in the house! The solar PV system that I designed does not replace my existing Amp electrical service.
I got one of these last time you posted a Kill-O-Watt article Really comes in handy at times. Also, if I remember right Ken, you use 2-way breakers in your panel rather than an ATS for power-down situations, correct?
That device is a panel surge protector from midnitesolar. They make a variety of types.Our local utility company has a number of these units that they lend out.
I was so impressed that I bought one to have around the house. They replied promptly. I also found a website that had an easy to use table. I found a couple of "energy hogs" in my house that should save me the cost of this device in 2 months. Once you unplug it from the wall, the data is GONE.
No big deal. I just had to do this with the refrigerator. Bought this instrument to determine what kind of electrical load was being put on individual electrical circuits.
I live in an old, old house that has some 14 ga. I am using it on mostly portable appliances right now. I was surprised to find on two different space heaters that are rated at watts each, one draws watts and the other draws watts.
I certainly would not recommend either of these two heaters on 14 ga. I also have a wood insert stove with 4 fans. Again, I was surprised. This appliance draws only 1 watt of power. I was sure it drew more. Most people are not concerned with the electrical power portable appliances or permenant ones draw. That is why they will try operate a microwave and a toaster at the same time on the same circuit. This instrument can tell you quick how much load you are putting on a circuit.
This instrument has 5 different settings: volts, watts, amperes, amp hours, and kilowat hours. No better educated than I am in this area, I can moniter my appliances and understand what is a better setting and placing for them and how to keep from overloading a circuit. I've used these for years, both to learn what an appliance actually uses in electrical usage, and to teach people of all ages about electricity and power usage. The label on the appliance is often just an estimate; this is the simplest and least expensive tool for assessing its actual usage.
This is a simple tool to let you know when you are having phantom energy draws. It is amazing how much electricity we use without even having an item on.
Did just what I wanted it to do. Totally happy with kill-a-watt. Performs to expectations. Just what I was looking for. Its amazing your electronics are still using electricity even when turned off.During my years of alternative power research, I have often come upon a thread here or there, where someone advised the original poster to purchase a Kil-A-Watt meter, to check Kilowatt hour usage, or to make use of other functions on the popular little tool.
Unfortunately, this tool seems to be only available for vac. So, I have a question here.
Kill-A-Watt Electric Usage Monitor Review
Why do they not make one of these for the foreign market, like here in Asia where mains service is vac? I feel they would sell like hotcakes, personally. Super Moderators, Administrators Posts: 30, admin. June 2. Re: Why do they not make a Kil-A-Watt meter for vacvac service?
Near San Francisco California: 3. June 3. It features a large LCD display and it enables cost forecasting. The name is a play on the word kilowatt. The manufacturer is the Taiwanese company Prodigit, which also makes models suited for V with European Schuko, U. June 4. June 5. Thanks to all of you. I appreciate the input, very much. June 6. Mabe they dont sell like hot cakes in some countries. In Australia about 6 to 8 yrs ago a well known electronics parts supplier imported many a large supply.
Im in Philippines a lot and population is about 90 million, but if you think you could make money selling them here.
Measuring 240V Electric Consumption
Sign In or Register to comment.Moderators: Ralf HutterLawrence Lee. Privacy Terms. Home Article Categories About us Forums. Quick links. This is an experimental forum. It's a reworked original Kill-a-Watt actually. Any thoughts? There are not so many good power meters with V input. G 2. What's the difference? I posted in the thread Ksanderash linked to. I am going to open some of them up and look for ways to make them more accurate. It is completely the same device, from Maplin hm, their server doesn't respond Had to pay some extra money to transfer purchase to Eastern Europe, but the device deserve the pay.
Nothern American Kill-a-Watt and this adapted euro-clone is still the best power meter on mass market! What is inside: And some pics on how I made it Schuko compliant, lol It's just a little dumb box now, with some hanged wires. And a socket on cord for the output too, cause I couldn't find a small Schuko socket to integrate it into the case. The Japanese and US versions are powered from the mains which seems obvious. It must have something to do with safety. The meter's maximum admissable load rate decreases proportionally, but that's still bearable issue.
The appearance of electric cars may make these meters much more common. I recommend this meter btw, it's very accurate on low loads. It is expensive though. A normal meter measures starting at 1W albeit with quite an error. Max W 16A. MoJo wrote Last edited by Klusu on Wed Mar 16, pm, edited 1 time in total. A normal meter measures below 1W. It must have something to do with cheapest possible.
Last edited by Klusu on Thu Feb 03, am, edited 1 time in total. The ones I have use fairly a standard power resistor and op-amp circuit, easy enough to interface.Whether or not you subscribe to the belief that we humans are accelerating our damage to this planet, I think we can all agree that the more power we use, the more we have to pay. Unless you live off the grid another term we often hear…you most likely have to pay a monthly bill to your electric company. If you would like to lower your electric bills and maybe even help save the planet a little bit, I have a product that can help you do just that.
Convenient Gadgets was nice enough to send me the Kill-A-Watt EZ P from P3 International is an electricity usage monitor that you plug into a 3 prong grounded wall outlet in your house. The appliance or device that you want to monitor then plugs into the outlet built into the Kill-A-Watt. Having the ability to see how different appliances and devices will effect your monthly electric bill is a great asset.
Once a month, a person from the electric company drives out in a truck and records the settings on the meter.
Why do they not make a Kil-A-Watt meter for 220vac-230vac service?
I suppose a person could just learn to read one of these meters themselves… or NOT! How about a closer look at the hardware? Dimensions: 5. The LCD is not backlit, but it is fairly easy to read in most lighting conditions. I did have to use a flashlight to view it though while I had it plugged into the wall under my desk.
The Kill-A-Watt comes with an 8 page user guide. The first thing you will need though is your last electric bill. Scan your bill to find what your electric company is charging you per kWh kilowatt-hour. For example, my electric company here in Columbus, Indiana is Duke Energy.
We will need to plug this information into the Kill-A-Watt so that it can correctly figure what an appliance is costing per hour, day, week, month or year. Be aware that your rates can change from month to month based on if you have budget billing or just that the company changes rates often.
The next step is to plug the Kill-A-Watt into a 3 prong wall outlet. It will power on automatically as soon as you plug it in. The only setup you need to do is to set the kWh rate that you found by looking at your electric bill.
This action zeros out all previous measurements of elapsed time, kWh and total cost. Then you press the SET button till Rate appears on the display. For me, I had to set it to 0. A Craftsman rechargeable flashlight battery charger 2. A 4 bulb floor lamp. My first test was with the Craftsman battery charger, which is always plugged in, with a battery in the socket.
This is because the flashlight also has a battery. I keep one battery always juiced up and ready to go. As soon as you plug the Kill-A-Watt into a wall socket, it will start accumulating time.
You can view the elapsed time by pressing the Menu button until you come to that screen. In addition to the time and cost screens which we will get to in a minutethere are screens that let you see power information for the device that is plugged into the Kill-A-Watt monitor.
It will show you how many volts and amps current the device is pulling.Available at participating Ace locations. Some restrictions apply. The purchase of this item requires you to exchange your old propane tank for a new filled propane tank.
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