At 02:19 AM 2/17/04 -0800, you wrote: >On this subject, in instrumentation for example - is it best to connect 0V to MAINS EARTH or not? > >If you have an instrument & sensor, where the sensor is on a long screened cable and has a metallic body - is it best to connect the screen to 0V at the instrument end AND the sensor body, or just the instrument end.
Just ground the shield (screen) at ONE end. Speaking from experience, I've had sensors that refused to work when both ends of the shield were grounded even when it had a separate ground wire. I'm not real sure why but apparently current will flow through the shield and upset things. Joe -- Author: Joe R. INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
