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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Sat Feb 26, 2011 8:25 am 
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Joined: Sat Oct 18, 2008 6:30 am
Posts: 352
Location: Moldova, exUSSR
Have received the Energenie Power Meter from UK. It's actually has the inside of Klusu's device!

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And the pcb too! So it is yet another ADE7755 device )

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«Schuko» adopted version with extension cord clued to )

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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Wed Mar 16, 2011 1:41 pm 
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Joined: Thu Jul 24, 2008 10:57 am
Posts: 165
Location: Riga
The last digit (after the decimal point) is not to be trusted.
I connected a 62kΩ resistor and paralel 68nF capacitor. Got 1.2W 45% PF (should be 0.8W).
Then I added paralel 217k and got less power - 1.0W 45%. Which means something is wrong in the digital domain. Perhaps one digit of the ADC is dead (by design?).
Some more results:
An old (paper) 10μF - 2.3W 0%
A 1μF capacitor (any) 0.8W 0%
Resistor 29kΩ - 2.3W 89% (should be 1.7W)
Resistor 40kΩ - 1.7W 44% (should be 1.25W and, of course, 100%)
Resistor 48kΩ - 0W, the threshold reached.


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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Tue Apr 12, 2011 12:51 am 
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Joined: Wed Jun 13, 2007 10:12 am
Posts: 3145
Location: ITALY
Klusu wrote:
PM230 should be avoided, apparently.

Can you explain more, please?

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Luca


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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Sat Apr 16, 2011 10:10 am 
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Joined: Thu Jul 24, 2008 10:57 am
Posts: 165
Location: Riga
"The measuring range is from 5 to 3500 Watt, the meter measures in 10 mA steps, which at 230 V corresponds to 2.3 Watt (at Ohmic load).
When the load is below 5 Watt, the meter indicates "zero"."
My meter is better. Seems to be defective, still better.


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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Sat Jun 11, 2011 4:37 pm 
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Joined: Wed Apr 08, 2009 8:09 am
Posts: 9
Location: UK
I am looking at getting a power meter to measure the power consumption of my computer.

Maplins seem to sell this one:

http://www.maplin.co.uk/plug-in-electricity-cost-and-usage-calculator-223573

There are also these meters:

http://www.amazon.co.uk/Energenie-ENER007-Power-Meter/dp/B003ELLGDC/ref=sr_1_2?s=electronics&ie=UTF8&qid=1307835957&sr=1-2

http://www.amazon.co.uk/Brennenstuhl-Wattage-Current-Meter-EM230/dp/B003BIFLTS/ref=sr_1_19?s=electronics&ie=UTF8&qid=1307835957&sr=1-19

http://www.maplin.co.uk/energy-monitoring-socket-266236

http://www.maplin.co.uk/plug-in-mains-power-and-energy-monitor-38343

A few of these have been mentioned before. Is the Energenie Power Meter a better choice than the Brennenstuhl EM230 or the Prodigit meter mentioned in the first post?? The Energenie Power Meter is the cheapest one too.


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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Thu Jul 21, 2011 12:41 am 
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Joined: Thu Oct 12, 2006 5:16 pm
Posts: 2
Two budget energy meters which seem to be reasonably accurate:

CRESTA - RCE-1106
http://nl.hardware.info/nieuws/14165/te ... uiksmeters (dutch)
10 euro (Kijkshop, Gamma)

Profitec KD 302
http://www.hardwareluxx.de/community/f5 ... 52567.html (german)
14 euro (Redcoon)


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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Fri Mar 09, 2012 4:01 am 
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Joined: Fri May 09, 2008 9:40 pm
Posts: 21
Location: Australia
Can't resist necro'ing this thread...

There's a product in Australia that works on 220-240V range - "Watts Clever", distributed by http://www.steplight.com.au. $30 ea

I'm using it at the moment, and it measures the power factor as well. That said, I haven't attempted to measure it against a calibrated load...

In the past, I've used one I got from Jaycar... I think it was about $20 that went down the drain in 48 hours.

This one seems to be holding up well (early days yet though)


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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Mon Apr 02, 2012 2:33 pm 
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Joined: Mon Jan 13, 2003 9:20 am
Posts: 750
Location: UK
Most (all?) UK models seem to be battery powered. I'm wondering why that is because Japanese and US meters are not, and it seems obvious to use the mains power. My guess is that it is safety related. I am tempted to try attaching a plug-in PSU in place of the batteries in one of mine to see what happens.

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 Post subject: Re: 220V alternative to Kill-a-Watt Power Energy Meter
PostPosted: Wed Jun 27, 2012 10:27 am 
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Joined: Sat Oct 18, 2008 6:30 am
Posts: 352
Location: Moldova, exUSSR
Hello guys. I discovered suddenly that meters under Energenie brand are made actually by ...Gembird Electronics Ltd. Not so noble manufacturer to be honest, but issues pretty usable quality. I still have no reason to blame my meter. Found my ENER007 and more recent one meter on youtube, maybe will be useful for someone.

...

Did anyone see EnerGenie Energy Meter LAN in the flesh? Looks very interesting

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