Power Usage Meter Surprise

[farookh]

Got this new German Power Meter today and got a big surprise

Idle machine consumes 147 watts
3d Game 223 watts
Cpu Full Load 192 watts
Off mains On still consumes 34 watts
The PM230 has a clear LCD display whre you can select from a range of display setting including:

Time & day of the week
Present current consumption shown in amps
Power consumption display in watts
Total energy consumption recorded during measuring time displayed in kWh
Power Factor PF, True power in cos phi
Displays metered periods in hours & minutes
Voltage and frequency display in volts and hertz
Total cost of energy function
Cost of electricity in KWh (kilowatt hours)
Technical specifications: (model brennenstuhl PM 230 ) Copyright © 2004 - 2

Operating voltage: 230 volts ac 50Hz
Operating current: Maximum 13 amps
Lowest measurable current: 0.02 amps
Voltage display ( V AC ): 190 volts to 276 volts
Current display ( amps ): 0.00 A - 16.00 A
Wattage display ( watts ): 0 W - 4416 W
kWh display ( kWh ): 0.00 - 999.99 kWh
Frequency display ( Hz ): 40 - 70 Hz
Power factor display ( PF ): 0.20 - 1.00
Accuracy: ( model Brennenstuhl PM 230 from PAT Training Services Limited)
Voltage: +/- 3% of measured value
Current: +/- 3% of measured value +/- 0.04 amps
Wattage: +/- 3% of measured value +/- 10 watts
kWh: +/- 3% of measured value +/- 0.1 kWh

 

[superczar]

how much was this power meter?

on a side note, 1 approx method of calculating the power draw is to use the ammeter on the regular DMMs ..That's the method I used to check the power ratings for my Car PC,,,

Unfortunately, the ammeter on most DMMs is not very precise, esp. On measuring AC draw

 

[Rahul]

how much was this power meter?

on a side note, 1 approx method of calculating the power draw is to use the ammeter on the regular DMMs ..That's the method I used to check the power ratings for my Car PC,,,
Unfortunately, the ammeter on most DMMs is not very precise, esp. On measuring AC draw

damn u beat it to me ....
i think my APC unit power consumed meter was pretty good ...... considering ur configuration and mine

 

[G@d of w@r]

awesome device. i was lookin for similar stuffs around lammy but those vendors were not keeping it as they didnt understand what i was talking about. anyways whats the damage and from where u bought?

Off mains On still consumes 34 watts

man.. something is wrong with ur power supplies there

 

[farookh]

device cost around 1500 bucks got it from UK in the US its 1000 for a similar Taiwan make but you cant use that here cause it 110v

No nothing wrong with my PS tried it on 2 one consumes 19 watts the other 34 watts i think its the usb standy current thats to blame trying to put usb on support off and see if it makes a difference.

 

[G@d of w@r]

any idea if we can get such devices at lammy?

 

[farookh]

Nope i looked a lot only ones that u will get are Clamp meters