R
Robert Downes
Guest
I have a Brennenstuhl PM 230 UK-power-socket current meter that tells me
how much power is being used on the appliance plugged into it.
It's a nice piece of equipment, but I'm wondering if there are any
multimeter/electronics/physics gurus who can tell me: how likely is it
that the claimed power usage in Watts is a useful figure.
I.e. what are the chances of this device (relatively cheap) giving me a
measurement of 'true power' rather than 'apparrent power' (simply IxV)?
The device claims to offer a measurement of 'cos thi', which it refers
to as the power factor. But I've seen physics/electronics sites that
criticise meters that bandy-about the phrase 'cos phi' without actually
defining what is actually being measured.
So: cheapo socket voltmeter, or true power reading? Anyone know about
this device specifically?
--
Bob
London, UK
echo Mail fefsensmrrjyaheeoceoq\! | tr "jefroq\!" "@obe.uk"
how much power is being used on the appliance plugged into it.
It's a nice piece of equipment, but I'm wondering if there are any
multimeter/electronics/physics gurus who can tell me: how likely is it
that the claimed power usage in Watts is a useful figure.
I.e. what are the chances of this device (relatively cheap) giving me a
measurement of 'true power' rather than 'apparrent power' (simply IxV)?
The device claims to offer a measurement of 'cos thi', which it refers
to as the power factor. But I've seen physics/electronics sites that
criticise meters that bandy-about the phrase 'cos phi' without actually
defining what is actually being measured.
So: cheapo socket voltmeter, or true power reading? Anyone know about
this device specifically?
--
Bob
London, UK
echo Mail fefsensmrrjyaheeoceoq\! | tr "jefroq\!" "@obe.uk"