RE: PC based Oscilloscope

["Dave McLaughlin" <dave@xxxxxxx>]

Hi guys,

The problem is not so much with the x10/x100 but with the ground return. With a standard scope, you lift the earth wire on the lead so that it is no= t
connected and then you can probe mains. Otherwise your nice shiny new toy goes off with a bang... I know, I have done it years ago. Even though the neutral on UK domestic mains is effectively earth (at the sub-station at least) you will still see a small potential voltage.

Regards
Dave...

-----Original Message-----
From: Simon Coates [mailto:ecolume@xxxxxxx]
Sent: 10 February 2003 23:28
To: ukha_d@xxxxxxx Subject: Re: [ukha_d] PC based Oscilloscope


----- Original Message -----
From: Paul Gale <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: 10 February 2003 23:18
Subject: RE: [ukha_d] PC based Oscilloscope


> Budget, budget - mmmm ..... must look that up in the dictionary (and n= ot
> the HA dictionary!).
>
> Yes - I did think about getting a mains capable probe - they all look<= BR> > quite expensive though?

I think it's because Pico sell differential probes - they're very expensive=
things - you can pay over =A3300 for one!
Try www.rswww.com code 188-4770 - it's a normal x100 probe - but I think you'll need to check with Pico to see if the input impedance is OK.

Regards

Simon
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http= ://www.grisoft.com).
Version: 6.0.449 / Virus Database: 251 - Release Date: 27/01/2003

http://www.automatedhome.co.uk 
Post message: ukha_d@xxxxxxx 
Subscribe:  ukha_d-subscribe@xxxxxxx 
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx 
List owner:  ukha_d-owner@xxxxxxx
List of UKHA Groups here - http://groups.yahoo.com/group/UKHA_Grouplists/

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.