Spehro Pefhany wrote:

>At 11:41 AM 6/18/2008, you wrote:
>  
>
>>First, a little background.  I have designed industrial control trinkets
>>    
>>
>In industrial control, sensors such as thermocouples sometimes get shorted to
>mains voltage heaters. That could be a potential safety issue.
>
>Depending on the details, it might or might not be a silly requirement.
>
>Another reasonable possibility is that it's a cut-and-paste from a
>previous job that had mains power. Suggest you pick up the phone and
>ask!
>
>  
>
>>Best regards,
>>    
>>
>
>Spehro Pefhany --"it's the network..."            "The Journey is the reward"
>  
>

Spehro,
Good thought on the shorts to heaters.  Been there, done that, have some charred remains back in the dungeon!  But all that was taken into account in the initial design, which they can plainly see in the schematics and mechanical details.  Everything is isolated from everything else.

Yep, the rest is 'cut and paste' policy.  Questions asked, statements made and now waiting for a decision.

Thanks,

Bill

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