QUOTE(rebooto @ May 14 2012, 11:20 AM)
i've bought the unit from you during the weekend. I'm not so much into all this power equation and etc... Just wondering if you could enlighten me on things i'm not sure.
i've measure a few stuff in my house as below :-
Air Cond - reading about 980 WATT during operation, 5.6Kwh , total on time 6 .29, and i've set price 1 at RM0.22 so it shows 1.24 for total price.
Q1. Does it means 980 WATT = 0.980 kW/h?
Q2. Does 5.6Kwh = 5.6kW/h?
My Dell laptop adapter stated to be 90W-AC Adapter, Input AC 100-240V~1.5A, Output DC 19.5V 4.62A
The meter reading VOLtac 244, 0.14 AMP, 33 WATT(average)
Q3. I don't quite understand the meter reading vs the adapter stated value. I wonder if the meter is reading accurately?
Q1. Correct if you see this during operation. Per hour.
Q2. No. It is 5.6
kWh. This is cumulative consumption since you started measuring. Typically avg WATT x Duration (hr) will give you this.
Q3. Laptop adaptor typically shows max output capability. 90W (19.5x4.62) is the maximum output the adaptor supports. Based on formula Power (W) = Volt (V) x Current (A).
When you plugin your laptop and measure, it shows 33Watt is normal usage. My laptop also shows 30+watt average. If You play some games on it or do some number crunching and it will go up. if you show a blank white screen at max brightness and WATT will go up. When you turn off screen or go on suspend, it will drop.
Hope this explains. Do let me know if you have any further questions.
Added on May 14, 2012, 1:12 pmQUOTE(blasto @ May 8 2012, 09:39 PM)
bro, i got plans to COD kindly answer my enquiries
HERE post #3... many thx

Hi bro, I have reponded to your topic. Please refer to the post below. Thank you.
http://forum.lowyat.net/index.php?showtopi...=0&p=51360929This post has been edited by 88sales88: May 14 2012, 01:12 PM