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Saturday, February 13, 2016

Appliances & Maintenance

6 Messages

Digest #2450

1a
Re: Microwave Power by "GARY HENSHAW" gary5382
1b
Re: Microwave Power by "Ian Tilley" i_tilley
1c
Re: Microwave Power by "R.L. Roebuck"
1d
Re: Microwave Power by "Ian Tilley" i_tilley
1e
Re: Microwave Power by "Brian Duerr" briguy1q2w
1f
Re: Microwave Power by "GARY HENSHAW" gary5382

Messages

Fri Feb 12, 2016 2:21 am (PST) . Posted by:

"GARY HENSHAW" gary5382

Just a thought John,how about checking how long it takes to boil a known quantity of water, say 200ml? Then compare against a different model (a friend's?), making due allowance for any difference in claimed power.
To be honest I don't know enough about Quality microwaves to be able to say whether the claimed '1000w' or whatever is the AC mains power input, or the actual microwave power output.Gary.   

Fri Feb 12, 2016 2:41 am (PST) . Posted by:

"Ian Tilley" i_tilley

When I used to repair microwaves, I always did a test on the output of the
microwaves. I was trying to remember the exact formulae (it's been a while)
so to refresh my memory, i did a google and came across this instruction
leaflet for a tester with the exact details required.

http://martindale-electric.co.uk/manuals/manMARTEK500.pdf?osCsid=db87fc2026e2e5f0c1a672bf30bc1df1

On 12 February 2016 at 18:18, GARY HENSHAW gary.henshaw@btinternet.com
[appliance-repair] <appliance-repair@yahoogroups.com> wrote:

>
>
> Just a thought John,
> how about checking how long it takes to boil a known quantity of water,
> say 200ml? Then compare against a different model (a friend's?), making due
> allowance for any difference in claimed power.
>
> To be honest I don't know enough about microwaves to be able to say
> whether the claimed '1000w&#39; or whatever is the AC mains power input, or the
> actual microwave power output.
> Gary.
>
>
>
>

--

Kind regards

Electric Ian (WA)
08 9399 9316
0434 039 095
www.electricianwa.com.au
EC11705

Fri Feb 12, 2016 2:58 am (PST) . Posted by:

"R.L. Roebuck"

Am I right to think the formula needs the user to input temperature rise
in degrees C (rather than degrees F) - it doesn't seem to say?

All the best,

Rich.

On Fri, 12 Feb 2016, Ian Tilley ian.tilley@gmail.com [appliance-repair] wrote:

> When I used to repair microwaves, I always did a test on the output of the
> microwaves. I was trying to remember the exact formulae (it's been a while)
> so to refresh my memory, i did a google and came across this instruction
> leaflet for a tester with the exact details required.
>
> http://martindale-electric.co.uk/manuals/manMARTEK500.pdf?osCsid=db87fc2026e2e5f0c1a672bf30bc1df1
>
>
>
> On 12 February 2016 at 18:18, GARY HENSHAW gary.henshaw@btinternet.com
> [appliance-repair] <appliance-repair@yahoogroups.com> wrote:
>
>>
>>
>> Just a thought John,
>> how about checking how long it takes to boil a known quantity of water,
>> say 200ml? Then compare against a different model (a friend's?), making due
>> allowance for any difference in claimed power.
>>
>> To be honest I don't know enough about microwaves to be able to say
>> whether the claimed '1000w&#39; or whatever is the AC mains power input, or the
>> actual microwave power output.
>> Gary.
>>
>>
>>
>>
>
>
>
> --
>
> Kind regards
>
> Electric Ian (WA)
> 08 9399 9316
> 0434 039 095
> www.electricianwa.com.au
> EC11705
>

Fri Feb 12, 2016 3:04 am (PST) . Posted by:

"Ian Tilley" i_tilley

As Martindale is British, I'm guessing Centigrade.

On 12 February 2016 at 18:58, 'R.L. Roebuck' rlr20@hermes.cam.ac.uk
[appliance-repair] <appliance-repair@yahoogroups.com> wrote:

> Am I right to think the formula needs the user to input temperature rise
> in degrees C (rather than degrees F) - it doesn't seem to say?
>
> All the best,
>
>
> Rich.
>
> On Fri, 12 Feb 2016, Ian Tilley ian.tilley@gmail.com [appliance-repair]
> wrote:
>
> > When I used to repair microwaves, I always did a test on the output of
> the
> > microwaves. I was trying to remember the exact formulae (it's been a
> while)
> > so to refresh my memory, i did a google and came across this instruction
> > leaflet for a tester with the exact details required.
> >
> >
> http://martindale-electric.co.uk/manuals/manMARTEK500.pdf?osCsid=db87fc2026e2e5f0c1a672bf30bc1df1
> >
> >
> >
> > On 12 February 2016 at 18:18, GARY HENSHAW gary.henshaw@btinternet.com
> > [appliance-repair] <appliance-repair@yahoogroups.com> wrote:
> >
> >>
> >>
> >> Just a thought John,
> >> how about checking how long it takes to boil a known quantity of water,
> >> say 200ml? Then compare against a different model (a friend's?), making
> due
> >> allowance for any difference in claimed power.
> >>
> >> To be honest I don't know enough about microwaves to be able to say
> >> whether the claimed '1000w' or whatever is the AC mains power input, or
> the
> >> actual microwave power output.
> >> Gary.
> >>
> >>
> >>
> >>
> >
> >
> >
> > --
> >
> > Kind regards
> >
> > Electric Ian (WA)
> > 08 9399 9316
> > 0434 039 095
> > www.electricianwa.com.au
> > EC11705
> >
>
>
> ------------------------------------
> Posted by: "R.L. Roebuck" <rlr20@hermes.cam.ac.uk>
> ------------------------------------
>
> All advice on repairs to microwave ovens should only be undertaken by
> qualified service personnel.
> To unsubscribe please send a mail to the following address from the
> account you recieve this message.
> appliance-repair-unsubscribe@yahoogroups.com
> ------------------------------------
>
> Yahoo Groups Links
>
>
>
>

--

Kind regards

Electric Ian (WA)
08 9399 9316
0434 039 095
www.electricianwa.com.au
EC11705

Fri Feb 12, 2016 4:28 am (PST) . Posted by:

"Brian Duerr" briguy1q2w

I used to work on 10KW microwave devices and we had to test them directly in
a very expensive fixture.

Google some terms on comparing the microwaves and I'm willing to guess it
will involve heating a specific amount of water that started at a specific
temp and compare the results of when it starts to boil etc.

Brian

Fri Feb 12, 2016 4:46 am (PST) . Posted by:

"GARY HENSHAW" gary5382

Good point regarding the starting temperature for water used in a comparison test - I forgot to mention that they should be (more or less) the same for a fair comparison.Gary. 

All advice on repairs to microwave ovens should only be undertaken by qualified service personnel.
To unsubscribe please send a mail to the following address from the account you recieve this message.
appliance-repair-unsubscribe@yahoogroups.com

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