Re: Pulsed electricity meter - what do I need to do ?

["Frank Mc Alinden" <frankmc@xxxxxxxxxxxxxxxx>]

Hi Chris

Contact me on frankmc AT internode DOT on DOT net..........

I have done a little schematic in pdf  that may help as im hopeless at
explaining things ;-))

Frank


----- Original Message -----
From: "christopher purves" <CHRIS_PURVES@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Monday, November 07, 2005 7:21 PM
Subject: Re: [ukha_d] Pulsed electricity meter - what do I need to do ?


> Hi Frank,
>
> Firstly thanks for the reply. If you wouldn't mind - would you pretend
I
> know nothing about electronics and provide a little more explanation ?
> Sorry
> to be a pain.
>
> Thanks
> Chris
>
>
>
>
>>From: "Frank Mc Alinden" <frankmc@xxxxxxx>
>>Reply-To: ukha_d@xxxxxxx
>>To: <ukha_d@xxxxxxx>
>>Subject: Re: [ukha_d] Pulsed electricity meter - what do I need to
do ?
>>Date: Mon, 7 Nov 2005 19:04:34 +1100
>>
>>Hi Chris
>>
>> > I have a new electricity meter with a supposed pulsed output.
The meter
>> > case
>> > shows a picture of a transistor with the collector and
emmiter
>> > available
>> > externally via screw down terminals.
>>
>>This is probably the output of an opto isolator...........
>>
>> > I have a pulse counter with 2 screw down terminals that
increments the
>> > count
>> > when the terminals are shorted.
>> >
>> > Wiring the 2 together doesn't work.
>>
>>Correct...!!
>>
>> > What do I have to do to make these play together - no doubt a
resistor
>> > and/or capacitor is involved!!
>>
>>I would use the output of the opto to drive another transistor
which has a
>>relay as its load and use the contacts of the relay to pulse your
device
>>..although this would depend on the pulsing freq of the meter
output ,
>>worth
>>a try ???
>>
>>HTH
>>Frank
>>
>>
>>----- Original Message -----
>>From: "christopher purves" <CHRIS_PURVES@xxxxxxx>
>>To: <ukha_d@xxxxxxx>
>>Sent: Monday, November 07, 2005 6:47 PM
>>Subject: [ukha_d] Pulsed electricity meter - what do I need to do ?
>>
>>
>> > Hi All,
>> >
>> > I have a new electricity meter with a supposed pulsed output.
The meter
>> > case
>> > shows a picture of a transistor with the collector and
emmiter
>> > available
>> > externally via screw down terminals.
>> >
>> > I have a pulse counter with 2 screw down terminals that
increments the
>> > count
>> > when the terminals are shorted.
>> >
>> > Wiring the 2 together doesn't work.
>> >
>> > From my school days I seem to remember you might need some
current on
>>the
>> > collector to cause an avalanche to make the transistor into a
switch or
>> > something like that?
>> >
>> > What do I have to do to make these play together - no doubt a
resistor
>> > and/or capacitor is involved!!
>> >
>> > Thanks
>> > Chris
>> >
>> >
>> >
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>
>
>
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>
>
> Yahoo! Groups Links
>
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