Cool device. However, the problem with these cheap meters that (which rely on induction and the hall effect) is that they are not accurate enough to be useful for for anything but fridges, ranges etc. If you notice the datasheet [http://www.farnell.com/datasheets/409580.pdf] and apply this to a PC (7...@230v), that's 326mA which is way below the 1A/10% specified threshold - so you're probably looking at about 20-30% accuracy.
The ones I use are similar to this one [http://www.savingtrust.dk/ consumer/products/energy-saving-equipment/electricity-meters/facts-and- figures] is accurate within 1% even for low watt devices. The only problem with these electronic ones are that they can only be used on one-phased appliances, i.e. I can not use it for my stove/range. /Casper On Aug 5, 1:43 pm, "Vince O'Sullivan" <[email protected]> wrote: > On Aug 4, 5:32 pm, Jan Goyvaerts <[email protected]> wrote: > > > I'm certainly not pretending granula does a better job. I'm just interested > > how one measures power consumption. Hence my question. > > At home we have one of these installed. Basically it's consists of a > small battery powered transmitter that loops around the main power > inlet and detects the current passing along the wire, and a small > battery powered wireless receiver that sits anywhere in the house. > Standard batteries last for several months. > > http://www.amazon.co.uk/Owl-CM-119-Wireless-Electricity/dp/B002C76WTW... > > V. -- You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/javaposse?hl=en.
