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Grounded (earthed) power supply? (slightly OT)
- To: ukha_d@xxxxxxx
- Subject: Grounded (earthed) power supply? (slightly OT)
- From: Jonathan Bradshaw <jonathan@xxxxxxx>
- Date: Mon, 30 Jul 2001 16:08:45 +0100
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
Its slightly off-topic (weather automation?) but I'm betting this group
has got some ideas for me!
I'm looking for a 12V power supply (currently using a plug-top 12V
switched 1 amp) that is "grounded" through the t the equipment.
The
weather station I have (Peet Bros Ultimeter 2000) requires an earthed
power supply in order t leak the static build up from the anemometer.
Unfortunately, the one I got from Maplins is not and right now after
about 5 minutes, the protection device in the junction box activates and
the display zero's out. If I remove the anemometer for 5-10 minutes I
can then plug it back in and get readings for a short while.
Nowhere can I find a mains transformer that appears t do what I need. I
was given the suggestion by the American company t run a wire from the
negative side of the 12V output directly t earth but I'm not sure if
this is okay for a switched power supply or even if it should be done in
the UK.
So, any advise would be appreciated!
Jonathan
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