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Dorsey
Associate

Join Date: Sep 2008
Posts: 31

Foundation Fieldbus Transmiter + HART

09/06/2008 11:42 AM

Pls, am new to Foundation Fieldbus.

1. Pls, how do I zero ( 0% ) a Foundation Fieldbus Pressure transmitter without applying a pressure source.Transducer block or Analog Input block?( Unlike a HART transmitter that has a Zero and Span bottom )

2. Can I terminate a Foundation Fieldbus transmitter and a HART transmitter in the same junctionbox. The FF transmitter would have a MegaBlock unit and the HART a terminal block. I intend useing a 5 pair cable to now run the signals to the control room from the junction box ( HART and FF together ).
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garth
Guru
Australia - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Sep 2006
Location: NSW Australia
Posts: 1101
Good Answers: 23
#1

Re: Foundation Fieldbus Transmiter + HART

09/07/2008 4:35 AM

What model is the Foundation Fieldbus Pressure transmitter?

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Dorsey
Associate

Join Date: Sep 2008
Posts: 31
#2
In reply to #1

Re: Foundation Fieldbus Transmiter + HART

09/07/2008 7:05 AM

The FF Pressure transmitter is a SMAR LD292
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feridun
Power-User

Join Date: Jun 2008
Location: TR
Posts: 142
Good Answers: 1
#3

Re: Foundation Fieldbus Transmiter + HART

09/07/2008 4:43 PM

G'day Dorsey,

1- You can use magnetic stick -that's with ld292- for this purpose (Following the menu at local display).

2-Bus lines of FF and HART must be galvanically isolated (due to collision!) so do not use same j-box for them.

I'd like to write more but have not enough time 'couse of a business trip.

regards
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garth
Guru
Australia - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Sep 2006
Location: NSW Australia
Posts: 1101
Good Answers: 23
#4

Re: Foundation Fieldbus Transmiter + HART

09/07/2008 7:31 PM

Feridun is correct .

SMAR tech enquiries can help you further.

hope it works for you

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Dorsey
Associate

Join Date: Sep 2008
Posts: 31
#5
In reply to #4

Re: Foundation Fieldbus Transmiter + HART

09/08/2008 3:47 AM

Feridun, Garth

Thanks for the responses
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